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Journal articles on the topic 'Reciprocating compressor'
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1
Xu, Qun, and Weirong Hong. "Dynamic performance of reciprocating compressor with capacity regulation system." Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering 233, no. 3 (April 27, 2018): 526–35. http://dx.doi.org/10.1177/0954408918772628.
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Regulating capacity by holding suction valves open in the partial compression stroke has a great application value for reciprocating compressors, which can reduce the power consumption proportionally with respect to the decrease of capacity. To allow this method to be widely applicable, it is important to analyze the changes in the dynamic performance of reciprocating compressors. This study focuses on the dynamic performance in an M-type reciprocating compressor with capacity regulation system. When the compressor’s capacity is regulated, the connecting rod force and normal force are within a reasonable range. The capacity regulation system has little effect on the shaft speed irregularity of compressor when the capacity regulation ratio is below 100%. The designed flywheel moment can satisfy the compressor’s safe operation under variable capacity regulation conditions. The results show that the application of the capacity regulation system has little negative influence on the compressor’s dynamic performance.
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Jarang, Hrishikesh Ganesh, and Dr R. S. Deshpande. "Design, Modeling and Analysis of Reciprocating Compressor." International Journal for Research in Applied Science and Engineering Technology 10, no. 6 (June 30, 2022): 593–98. http://dx.doi.org/10.22214/ijraset.2022.43096.
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Abstract: The present day concept of automation has increased the use of compressed air in every field of industrial life. To design double acting gas compressor with an intention to provide the operating pressure required for less time taken by single acting compressor to generate the same pressure of compressor. Basic components of double acting reciprocating gas compressor are designed. In this paper the process of reciprocating gas compressor from raw stage to the analyticalstage had been explained. In these process firstly to check the standard data and as per standard data the design calculation is being proceed. The aim of this topic is to know the effect on piston, connecting rod, piston head, and piston rod, guide way and may other components. We have limited standard bore size diameter reciprocating gas compressor cylinder so to get various bore size diameter for various place and for various uses for that reason to develop the compact size reciprocating gas compressor cylinder. So to get the proper results as per standarddata book need many research papers, books, and data so that it can be very helpful for designing and developing compact size reciprocating gas compressor cylinder. While designing the reciprocating cylinder one thing should be considered that is the capacity of gas tank should be measured, the standard cubic meter per hour (SCMH) should be known and to find out the SCMH valve we have to know the stroke length of reciprocating gas compressor. It means that for designing and making compressor firstly know the duty cycle and SCMH of reciprocating compressor. Keywords: Reciprocating Compressor, Natural Gas, Square Engine, Positive-displacement, Double-acting, Compressed gas
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Jarang, Hrishikesh Ganesh, and Dr R. S. Deshpande. "The Survey on Reciprocating Gas Compressor: A Review." International Journal for Research in Applied Science and Engineering Technology 10, no. 6 (June 30, 2022): 775–80. http://dx.doi.org/10.22214/ijraset.2022.43097.
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Abstract— This paper represent the survey on reciprocating gas compressor and there effects on different location whether it is onshore or offshore. Reciprocating air compressors are the foremost ordinarily used compressor for domestic and industrial functions. These papers also investigate the improving volumetric efficiency of two stage reciprocating gas compressor by providing IC Tube bundle and cooling system. These surveys perform the experiments of a two-stage with double-cylinder reciprocating gas compressor system with gas and different cooling systems were performed. This study develops a higher understanding on the impact of honing within the cylinder that reduces the surface roughness within the cylinder and ends up in bigger air output. In these review paper there are various things that are considered for designing the cylinder for the purpose of compressing the gas in differential uses. In these review the effecton reciprocating is seen whether it is steady state or in a thermal state conditions, so to get this results they have done assessments on various conditions and for various purpose. The aim of these survey papers is to define the proper way of research done on reciprocating compressor i.e. the research paper data, methodology, verification and validation, the way of results and discussion of various assessments test, etc. These paper mainly focus on the positive displacement compressor and that of the sub part is reciprocating gas compressor and their design, modelling, analysis and development i.e. from raw stage to the final stage of reciprocating gas compressor. From these survey we also find the whole process of reciprocating gas compressor and there future scope. Keywords— Reciprocating Gas Compressor, Honing, Two Stage Cylinder, Cooling, Volumetric efficiency
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Braga, Vitor M., and Cesar J. Deschamps. "Parametric Analysis of Gas Leakage in the Piston–Cylinder Clearance of Reciprocating Compressors." Machines 11, no. 1 (December 30, 2022): 42. http://dx.doi.org/10.3390/machines11010042.
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Gas leakage is one of the main sources of inefficiencies in low-capacity reciprocating compressors, undermining the compressor performance by reducing the mass flow rate and increasing the energy consumption. In reciprocating compressors, leakage in the piston–cylinder clearance is driven by the piston motion and pressure difference between the compression chamber and the internal environment of the shell. This paper reports a parametric numerical analysis of leakage in the piston–cylinder clearance of a low-capacity reciprocating compressor. A simulation model based on the Reynolds equation is applied throughout the compression cycle to assess the effect of the compressor operating conditions, clearance geometry, piston velocity and piston secondary motion on the leakage and compressor performance. A 3D CFD model is also developed to validate the Reynolds leakage model and to evaluate the effect of the piston secondary motion on leakage, assuming the piston is fixed with predetermined eccentricities. The results show that the compressibility effects are very relevant to estimate the gas leakage. The simulations also revealed that leakage is more detrimental to the compressor performance when it is operating in low back-pressure conditions. Additionally, the piston secondary motion can intensify the gas leakage in the piston–cylinder clearance by up to 90%. On the other hand, the piston velocity only plays a minor role in assessing the leakage.
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Li, Ying, Haijun Xuan, and Weirong Hong. "Analysis of rod reversal in reciprocating compressor with capacity regulating system." Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering 231, no. 2 (August 3, 2016): 131–37. http://dx.doi.org/10.1177/0954408915578055.
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In reciprocating compressors, partial unloading stepless capacity regulation causes the power consumption to reduce in proportion to the decrease in capacity. To enable the widespread application of this method, it is necessary to analyse the changes in the mechanical status of a reciprocating compressor while its capacity is being regulated. This study focused on the rod reversal in a reciprocating compressor and evaluated the influence of capacity regulation. Based on a thermodynamic cycle model, the reversal angles for different capacities were calculated and compared for an M-type reciprocating compressor. The calculated results show that, for a compressor for which the designed reversal angles are sufficiently large to ensure good lubrication for pin and bushing assemblies, stepless capacity regulation can guarantee its safe operation.
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Li, Ting, Yuchuan Wang, Xiuli Mao, Diyi Chen, Rui Huang, and Quanke Feng. "Development and Experimental Study of the First Stage in a Two-Stage Water-Flooded Single-Screw Compressor Unit for Polyethylene Terephthalate Bottle Blowing System." Energies 13, no. 16 (August 16, 2020): 4232. http://dx.doi.org/10.3390/en13164232.
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The oil-free compressor is a key component in fabricating polyethylene terephthalate (PET) bottles for beverages and water. At present, the main compressor type used for blowing PET bottles is the reciprocating compressor. However, compared to screw compressors, reciprocating compressors have shortcomings of high energy consumption and too many consumable parts. Many manufacturers of PET bottles in Asia are seeking to replace reciprocating compressors with screw compressors, as we know. Screw compressors can be classified as single-screw compressors (SSC) and twin-screw compressors. Since the load in a twin-screw compressor is far larger than that in an SSC, SSCs are more suitable for being developed for high-pressure applications such as PET bottle blowing. This paper presents a performance study on an oil-free single-screw compressor as the first stage of the PET compressor unit. A 5.4 m3·min−1 prototype and its test rig were developed. The thermophysical process of the moist air is theoretically analyzed. The pressure loss on the flow path and the influence of the important parameters are experimentally investigated. It is found that water vapor cannot be separated during the adiabatic compression process. The results also show that the pressure loss from the discharging duct to the check valve accounts for the largest percentage of the total pressure loss. The experimental results further show that the discharge capacity and shaft power increase almost linearly with the motor speed. The efficiency declines with increasing injected water temperature. The discharge capacity and shaft power all increase with the injected water flowrate, and an optimum flowrate is found to ensure a highest isentropic efficiency. With the increase in discharge pressure, the discharge capacity decreases, and the shaft power increases. The isentropic efficiency is found to have its maximum value at a certain discharge pressure.
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Wang, Yanfeng, Jin Wang, Zhilong He, Junwei Sun, Tao Wang, and Changhai Liu. "Investigation on Dynamic Characteristics of the Reed Valve in Compressors Based on Fluid-Structure Interaction Method." Applied Sciences 11, no. 9 (April 27, 2021): 3946. http://dx.doi.org/10.3390/app11093946.
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The flow in the gap between the reed and the valve seat has a significant influence on the dynamic characteristics of the reed valve used in reciprocating compressors. The fluid–structure interaction (FSI) method is an effective method for studying reciprocating compressors. A three-dimensional FSI model of a reciprocating compressor with a reed valve is established in this paper, which has an important influence on the flow rate characteristic of reciprocating compressors. Furthermore, an experimental investigation is implemented to verify the FSI model. Based on the established FSI model, the pressure distribution on the reed valve surface is identified by varying the height of the suction valve limiter and the rotational speed of the compressor, which has an important effect on the dynamic characteristics of the reed valve. Although the low-pressure region, due to the Bernoulli effect on the surface of the reed, hinders the rapid opening of the valve to some extent, it is obviously beneficial to the timely closure of the valve and increases the volumetric efficiency of the compressor. Moreover, the optimal height of the valve limiter and the appropriate rotational speed of the compressor are obtained.
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Yusha, V. L., and S. S. Busarov. "Method for calculating actual capacity of single-stage long-stroke reciprocating compressors." Omsk Scientific Bulletin. Series Aviation-Rocket and Power Engineering 4, no. 4 (2020): 9–15. http://dx.doi.org/10.25206/2588-0373-2020-4-4-9-15.
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The article presents a generalized method for calculating the actual performance of low-speed longstroke air compressor stages of compression, based on determining the flow rate as a set of coefficients reflecting the influence of various factors on productivity losses. The method takes into account the design and operating features of low-speed long-stroke air compressor stages of compression and differs significantly from a similar method used to calculate high-speed stages of reciprocating compressors
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Lv, Qian, Xiaoling Yu, Haihui Ma, Junchao Ye, Weifeng Wu, and Xiaolin Wang. "Applications of Machine Learning to Reciprocating Compressor Fault Diagnosis: A Review." Processes 9, no. 6 (May 21, 2021): 909. http://dx.doi.org/10.3390/pr9060909.
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Operating condition detection and fault diagnosis are very important for reliable operation of reciprocating compressors. Machine learning is one of the most powerful tools in this field. However, there are very few comprehensive reviews which summarize the current research of machine learning in monitoring reciprocating compressor operating condition and fault diagnosis. In this paper, the recent application of machine learning techniques in reciprocating compressor fault diagnosis is reviewed. The advantages and challenges in the detection process, based on three main monitoring parameters in practical applications, are discussed. Future research direction and development are proposed.
10
Prasad, B. G. Shiva. "Effect of Liquid on a Reciprocating Compressor." Journal of Energy Resources Technology 124, no. 3 (August 6, 2002): 187–90. http://dx.doi.org/10.1115/1.1491981.
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Compressors are intolerant to liquids. In reciprocating compressors with inherently large volumetric displacement rates, all modes of liquid ingestion pose a serious problem and can even result in catastrophic failures. This paper describes a simple method of estimating the cylinder pressure and “rod load” (force on the crosshead pin, in compressor terminology) in a double-acting reciprocating compressor. The results indicated that even with moderate volume of liquid present inside the cylinder, the pressure could reach values as high as four to five times its normal value with a correspondingly higher rod load.
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Duarte, Willian Moreira, Juan Jose Garcia Pabon, Antônio Augusto Torres Maia, and Luiz Machado. "Nonisentropic Phenomenological Model of a Reciprocating Compressor." International Journal of Air-Conditioning and Refrigeration 27, no. 04 (November 29, 2019): 1950039. http://dx.doi.org/10.1142/s2010132519500391.
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This paper presents the development of a numerical, iterative and nonisentropic model for the thermodynamic processes of a reciprocating compressor of a refrigeration system operating at steady state. The mathematical model was implemented using the scientific software Engineering Equation Solver (EES) and it is based on the application of the energy equations in four regions of the compressor: inlet duct and chambers of pre-compression, compression, and post-compression. The model was validated with experimental data collected from an open-drive reciprocating compressor, operating with the refrigerant R-134a at different suction and discharge pressures and with different compressor rotational speeds. Model validation was made comparing the values of the mass flow rate and the discharge temperature of the compressor generated by the model with their corresponding experimental values for 33 experimental tests, the mean relative difference was [Formula: see text]0.2% for the discharge temperature and 2.9% for mass flow rate. In this validation, the output variables of the model were calculated considering the uncertainties from the input variables. The theoretical mean standard uncertainty is 2% for discharge temperature and 6% for mass flow rate. An analysis of the capacitive and thermal performance of the compressor was made using the model, which demonstrates a decrease in the capacitive and thermal efficiencies for increasing the pressure ratio or clearance volume.
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Anthony, Muhamad Bob. "ANALISIS RISIKO KESELAMATAN DAN KESEHATAN KERJA (K3) PADA PENGOPERASIAN RECIPROCATING COMPRESSOR MENGGUNAKAN METODE SWIFT (STRUCTURED WHAT IF TECHNIQUE) DI PT. ABC." Industri Inovatif : Jurnal Teknik Industri 11, no. 1 (April 18, 2021): 49–58. http://dx.doi.org/10.36040/industri.v11i1.3413.
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PT. ABC merupakan salah satu perusahaan nasional yang bergerak dibidang penjualan gas alam untuk industri dan reciprocating compressor merupakan salah satu peralatan utama yang digunakan di PT. ABC. Kompresor memiliki fungsi untuk menaikkan tekanan gas alam dari tekanan gas rendah menjadi tekanan gas tinggi dan jenis kompresor yang dipakai oleh PT. ABC adalah jenis reciprocating compressor. Penggunaan reciprocating compressor mempunyai berbagai potensi bahaya baik itu saat proses operasional yang bersifat rutin maupun saat proses operasional yang bersifat tidak rutin sehingga penggunaan reciprocating compressor memiliki risiko kecelakaan kerja yang sangat tinggi. Dari data kejadian kecelakaan kerja pada pengoperasian reciprocating compressor di PT. ABC terdapat 13 kejadian kecelakaan kerja dan ini menggambarkan masih tingginya tingkat kecelakaan kerja yang terjadi. Metode SWIFT (Structural What If Analysis) adalah suatu teknik untuk mengidentifikasi bahaya dengan pendekatan bertanya menggunakan kata kunci what if (bagaimana jika). Tujuan penelitian ini adalah untuk mengetahui potensi bahaya apa saja yang ada di reciprocating compressor dengan menggunakan metode what if analysis, mengetahui risiko kecelakaan kerja yang ada pada pengoperasian reciprocating compressor dan memberikan rekomendasi perbaikan yang menjadi prioritas utama pada pengoperasian reciprocating compressor. Analisa lembar kerja menggunakan Metode SWIFT (structural what if analysis) menghasilkan 18 potensi bahaya pada pekerjaan pengoperasian reciprocating compressor dan berdasarkan perhitungan RRN (Risk Rating Number), terdapat 9 bahaya prioritas utama, 5 bahaya prioritas menengah, 3 bahaya prioritas rendah dan 1 bahaya prioritas paling rendah. Rekomendasi perbaikan dibuat berdasarkan tingkat risiko dengan prioritas utama untuk mencegah dan mengurangi tingkat risiko kecelakan kerja pada pengoperasian reciprocating compressor.
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Shcherba, V. E., A. Khait, E. A. Pavlyuchenko, and I. Yu Bulgakova. "Development and Research of a Promising Pumpless Liquid Cooling System for Reciprocating Compressors." Energies 16, no. 3 (January 21, 2023): 1191. http://dx.doi.org/10.3390/en16031191.
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A new pumpless liquid cooling system for a single-stage two-cylinder reciprocating compressor has been developed from the analysis of work processes and cooling systems of reciprocating compressors, where one piston compresses and moves gas and coolant in the cooling system. The intensification of the coolant movement increases in the machine, which can reduce the temperature of the cylinder–piston group and increase the indicator efficiency and the compressor feed rate. A mathematical model of working processes in a reciprocating compressor and its cooling system has been developed on the basic fundamental laws of conservation of energy, mass and motion. A prototype was developed and tested to obtain new knowledge about the processes in the machine and confirm the assumptions made while developing the mathematical model. After a series of experiments, the influence of cooling on the working processes in a reciprocating compressor, the technical work carried out in each working process, the energy and consumption characteristics of a reciprocating compressor with a developed cooling system were established. There was a validation performed of the developed mathematical model of work processes in the machine and the assumptions made. According to the developed mathematical model of work processes, a numerical experiment was carried out, which established: the coolant flow rate decreases with an increase in discharge pressure and increases with an increase in the crankshaft speed when the discharge pressure changes from 0.4 MPa to 0.8 MPa, a decrease in the indicator isothermal efficiency due to the leakage and non-isothermal nature of the compression process, as well as a decrease in the return work in the process of reverse expansion, leading to a decrease in the indicator isothermal efficiency of more than 15%; due to the equalization of pressures in the gas cavities with an increase in discharge pressure, the coolant consumption is reduced by (15 ± 17)%; with an increase in the angular speed of the crankshaft from 800 rpm to 1500 rpm, the coolant flow rate increases by more than 2.5 times, this increase in coolant flow rate is due to an increase in hydraulic resistance due to an increase in gas velocity; in the range from 1000 to 1200 rpm, a maximum of the indicator isothermal efficiency and compressor feed rate is observed; maximum indicator isothermal efficiency and the supply ratio is observed at a coolant flow rate in the range from 800 mL/min to 900 mL/min.
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Burakov, A. V., A. A. Kotlov, and A. A. Levikhin. "Compressor equipment for enhancing efficiency of solid organic waste processing plants." Omsk Scientific Bulletin. Series Aviation-Rocket and Power Engineering 5, no. 3 (2021): 54–62. http://dx.doi.org/10.25206/2588-0373-2021-5-3-54-62.
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The article describes the experience of the Compressor holding company in the creation of compressor equipment for various industries. The use of compressors as part of complexes for the processing of organic waste in the framework of solving urgent environmental problems has been demonstrated. The process of compression of synthesis gas to increase the efficiency of the processing process has been investigated. To ensure stable parameters, reliable operation of syngas reciprocating compressors is required in wide ranges of operating parameters. Ensuring the operability of the compressor in wide ranges of parameter variation requires multivariate calculations in order to find the best design parameters of the compressor. A compressor is proposed for the most efficient implementation of the task and its characteristics are calculated.
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Guo, Fu-Yan, Yan-Chao Zhang, Yue Wang, Pei-Jun Ren, and Ping Wang. "Fault Diagnosis of Reciprocating Compressor Valve Based on Transfer Learning Convolutional Neural Network." Mathematical Problems in Engineering 2021 (January 8, 2021): 1–13. http://dx.doi.org/10.1155/2021/8891424.
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Reciprocating compressors play a vital role in oil, natural gas, and general industrial processes. Their safe and stable operation directly affects the healthy development of the enterprise economy. Since the valve failure accounts for 60% of the total failures when the reciprocating compressor fails, it is of great significance to quickly find and diagnose the failure type of the valve for the fault diagnosis of the reciprocating compressor. At present, reciprocating compressor valve fault diagnosis based on deep neural networks requires sufficient labeled data for training, but valve in real-case reciprocating compressor (VRRC) does not have enough labeled data to train a reliable model. Fortunately, the data of valve in laboratory reciprocating compressor (VLRC) contains relevant fault diagnosis knowledge. Therefore, inspired by the idea of transfer learning, a fault diagnosis method for reciprocating compressor valves based on transfer learning convolutional neural network (TCNN) is proposed. This method uses convolutional neural network (CNN) to extract the transferable features of gas temperature and pressure data from VLRC and VRRC and establish pseudolabels for VRRC unlabeled data. Three regularization terms, the maximum mean discrepancy (MMD) of the transferable features of VLRC and VRRC data, the error between the VLRC sample label prediction and the actual label, and the error between the VRRC sample label prediction and the pseudolabel, are proposed. Their weighted sum is used as an objective function to train the model, thereby reducing the distribution difference of domain feature transfer and increasing the distance between learning feature classes. Experimental results show that this method uses VLRC data to identify the health status of VRRC, and the fault recognition rate can reach 98.32%. Compared with existing methods, this method has higher diagnostic accuracy, which proves the effectiveness of this method.
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Guo, Fu-Yan, Yan-Chao Zhang, Yue Wang, Pei-Jun Ren, and Ping Wang. "Fault Diagnosis of Reciprocating Compressor Valve Based on Transfer Learning Convolutional Neural Network." Mathematical Problems in Engineering 2021 (January 8, 2021): 1–13. http://dx.doi.org/10.1155/2021/8891424.
Full textAbstract:
Reciprocating compressors play a vital role in oil, natural gas, and general industrial processes. Their safe and stable operation directly affects the healthy development of the enterprise economy. Since the valve failure accounts for 60% of the total failures when the reciprocating compressor fails, it is of great significance to quickly find and diagnose the failure type of the valve for the fault diagnosis of the reciprocating compressor. At present, reciprocating compressor valve fault diagnosis based on deep neural networks requires sufficient labeled data for training, but valve in real-case reciprocating compressor (VRRC) does not have enough labeled data to train a reliable model. Fortunately, the data of valve in laboratory reciprocating compressor (VLRC) contains relevant fault diagnosis knowledge. Therefore, inspired by the idea of transfer learning, a fault diagnosis method for reciprocating compressor valves based on transfer learning convolutional neural network (TCNN) is proposed. This method uses convolutional neural network (CNN) to extract the transferable features of gas temperature and pressure data from VLRC and VRRC and establish pseudolabels for VRRC unlabeled data. Three regularization terms, the maximum mean discrepancy (MMD) of the transferable features of VLRC and VRRC data, the error between the VLRC sample label prediction and the actual label, and the error between the VRRC sample label prediction and the pseudolabel, are proposed. Their weighted sum is used as an objective function to train the model, thereby reducing the distribution difference of domain feature transfer and increasing the distance between learning feature classes. Experimental results show that this method uses VLRC data to identify the health status of VRRC, and the fault recognition rate can reach 98.32%. Compared with existing methods, this method has higher diagnostic accuracy, which proves the effectiveness of this method.
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Grzelczak, Mateusz. "The influence of efficiency of the cooling system on the thermodynamic parameters and performance of a two - stage VC 20.96 reciprocating compressor designed to serve as a marine engine starter." Polish Maritime Research 20, no. 4 (December 1, 2013): 25–33. http://dx.doi.org/10.2478/pomr-2013-0037.
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ABSTRACT The paper presents results of the research related to the analysis of the thermodynamic and flow processes occurring in a prototype VC 20.96 two-stage liquid-cooled reciprocating compressor. The compressor has been developed and manufactured by H. Cegielski Poznan metal works in collaboration with the Poznan University of Technology. The research related to the VC compressor was realized within the KBN 3127/C.T07-6/2002 project titled “Development of design of type-series of reciprocating compressors and their implementation in production”. The basic task of the project was to develop two type-series of liquid- and air- cooled reciprocating compressors of the V- and W- arrangement, designed to serve as marine engine starters. The result of the design work was the manufacturing of two compressors: the VC 20.96 liquid-cooled compressor and the WP 18.80 air-cooled one. The main aim of the research described in this paper was to evaluate the efficiency of the cooling system which uses inter-coolers integrated with the compressing stages and the cooperation of the compressing stages in terms of pressure ratio distribution. Owing to the cooling method, the applied design assumptions enabled to develop a compact compressor fulfilling the assumed operating parameters.
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Prata, A. T., J. R. S. Fernandes, and F. Fagotti. "PISTON LUBRICATION IN RECIPROCATING COMPRESSORS." Revista de Engenharia Térmica 1, no. 1 (June 30, 2001): 56. http://dx.doi.org/10.5380/reterm.v1i1.3501.
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Piston dynamics plays a fundamental role in two critical processes related to fluid flow in reciprocating compressors. The first is the refrigerant leakage through the radial clearance, which may cause considerable loss in the pumping efficiency of the compressor. The second process is the viscous friction associated with the lubricant film in the radial clearance; certainly a significant factor in the compressor energy consumption. In the present contribution a numerical simulation of the piston movement inside the cylinder of a reciprocating compressor is performed. The compressor considered here is a small hermetic compressor employed in domestic refrigerators. For the problem formulation both the axial and the radial piston motion is considered. In operation, the piston moves up and down along the axis of the cylinder, but the radial oscillatory motion in the cylinder bore, despite being usually small, plays a very important role on the compressor performance and reliability. The compromise between sealing of the gas leakage through the piston-cylinder clearance and the friction losses requires a detailed analysis of the oscillatory motion for a good design. The forces acting on the piston are the hydrodynamic force due to the pressure build up in the oil film (lubrication effects), the force due to the connecting rod, the viscous force associated with the relative motion between the piston and oil, and the force exerted by the gas on the top of the piston. All corresponding moments are also included in the problem formulation of the piston dynamics, in order to determine the piston trajectory, velocity and acceleration at each time step. The hydrodynamic force is obtained from the integration of the pressure distribution on the piston skirt, which, in turn, is determined from a finite volume solution of the time dependent equation that governs the oil flow. A Newton-Raphson procedure was employed in solving the equations of the piston dynamics. The results explored the effects of some design parameters and operating conditions on the stability of the piston, its sealing performance and friction losses. Emphasis was placed on investigating the influence of the pin location, radial clearance and oil viscosity on the piston dynamics. The complexity of the piston movement in reciprocating compressors was demonstrated and the detailed model presented can be employed as an useful tool for engineering design.
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Townsend, Jim, and M. Affan Badar. "Impact of condition monitoring on reciprocating compressor efficiency." Journal of Quality in Maintenance Engineering 24, no. 4 (October 8, 2018): 529–43. http://dx.doi.org/10.1108/jqme-06-2017-0040.
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Purpose Reciprocating compressors offer an efficient method of compressing almost any gas composition in a wide range of pressures and have numerous applications. Condition monitoring of critical rotating machinery is widely accepted by operators of centrifugal compressors. However, condition monitoring of reciprocating machinery has not received the same degree of acceptance. An earlier study (Townsend et al., 2016) was conducted on temperature monitoring. The purpose of this paper is to examine the impact of continuous pressure monitoring on electric-driven compressors. Design/methodology/approach This research analyzes the impact of continuous pressure monitoring on a fleet of 14 compressors transporting CO2 for enhanced oil recovery. The reliability and efficiency data on 14 reciprocating compressors over a three-year period were analyzed for failures detectable by the condition monitoring technology. The engineering economic analysis is presented to determine the impact this technology will have on the productivity of the compressors. Findings The study considers utilizing condition monitoring technology to analyze the pressure of the swept volume of the compressor cylinders. The results of the study indicate that continuous pressure monitoring technology has a strong impact on the productivity of the compressor fleet. The internal rate of return not only exceeds the operators hurdle rate, but the payback period is also dramatic. Pressure monitoring was found to be economically better than temperature monitoring. Originality/value The study reveals the economic benefits of implementing condition monitoring in the form of continuous pressure monitoring on reciprocating compressors.
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Hsieh, W. H., and T. T. Wu. "Numerical Simulation and Experimental Investigation of Compression Processes of Two-Stage, very High Pressure Reciprocating Gas Compressors." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 208, no. 5 (September 1994): 287–98. http://dx.doi.org/10.1243/pime_proc_1994_208_131_02.
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To help the design of more reliable and efficient two-stage, very high pressure reciprocating gas compressors, a theoretical model and a numerical code for simulating compression processes in the compressors were developed and validated. The theoretical model considers time-dependent conservation equations of species, mass and energy, the equation of state, kinematic relationships and various convective heat-transfer correlations The theoretical model was solved numerically. Experimentally, a 207 MPa (30 000 lb/in2) very high pressure gas compressor was instrumented for measurements of various transient flow properties. The experimental data were analysed to achieve a better understanding of the compression processes of the compressor as well as for model validation. A parametric study was conducted with the theoretical model and numerical code to investigate the effect of various compressor parameters on the compressor performance. Among the parameters studied, it was found that the dead-end volume had the strongest effect on the performance of the compressor. A reduced dead-end volume would increase the volumetric efficiency and the maximum gas-phase temperature and pressure in the first-stage cylinder.
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Dinu, Paul-Octavian, Ion Pana, and Florinel Dinu. "A METHOD TO DETERMINE THE MASS FLOW TO RECIPROCATING COMPRESSORS." Romanian Journal of Petroleum & Gas Technology 3 (74), no. 2 (2022): 5–16. http://dx.doi.org/10.51865/jpgt.2022.02.01.
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To establish the mass flow to a reciprocating compressor there are several relationships used in the construction and analysis of these types of compressors. The use of relationships is based on the geometric elements of the compressor. It is also necessary to know the composition of the gas and the operating conditions with which: the adiabatic exponent, the volumetric efficiencies and the compressibility factor are determined. The paper aims to establish the compressor mass flow with the help of modern means. The modeling was done in the LMS Amesim program. We use elements from the library of program to create a virtual model of the compression system. A comparison is made with the results obtained by the classical methods. The results show that there are no big differences between the values of the mass flow obtained through the usual relations and those obtained based on the realized model, that includes the main elements necessary for a precise calculation. However, the proposed method opens a wider horizon of understanding of the compression system through direct correspondence with the real model and the graphical possibilities of displaying the time variation of the system characteristics.
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Lyu, Fengxia, Caiqian Xie, Fengfeng Bie, Xinting Miao, Yifan Wu, and Ying Zhang. "Nonlinear Vibration Feature Recognition Method for Reciprocating Compressor Cylinder Based on VMD-Multifractal Spectrum." Shock and Vibration 2023 (January 17, 2023): 1–15. http://dx.doi.org/10.1155/2023/2504170.
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The failure probability of piston ring abrasion occupies the forefront in reciprocating compressor cylinder assembly. Due to the reciprocating friction between the piston ring and cylinder liner, the local vibration signal contains typical nonstationary characteristics with a seriously overlapped frequency band of impact signals, while the different featured signals are coupled with each other. Therefore, the identification of cylinder friction and abrasion fault modes has always been a hot and difficult problem in fault diagnosis of reciprocating compressors. In order to monitor the friction and abrasion between low linear speed nonmetallic piston ring and cylinder liner of reciprocating compressor in refinery and provide a theoretical basis for preventive maintenance, an analysis method based on VMD-multifractal spectrum was presented in this paper. First, the feasibility of the proposed method was proven based on the cylinder vibration experiment of a reciprocating compressor in the laboratory. Then, an in-service reciprocating compressor in a refinery was taken as the research object, from which the cylinder friction vibration signals were processed by using variational mode decomposition to obtain a band-limited intrinsic mode function (BLIMF). Multifractal detrended fluctuation analysis is employed in the final abrasion pattern identification. The results show that the proposed method based on VMD-multifractal spectrum analysis can effectively obtain the abrasion state of a piston ring, which can avoid blind overhaul or provide the basis for preventive maintenance and a practicable engineering route for the study of the piston ring abrasion degree.
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Huang, Ye Hua, and Guo Hua Dai. "Study of Vibration Characteristics of the Reciprocating Compressor on the Offshore Platform Based on Harmonic Wavelet Packet Transform." Advanced Materials Research 875-877 (February 2014): 2107–12. http://dx.doi.org/10.4028/www.scientific.net/amr.875-877.2107.
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In order to determine the vibration characteristics of the reciprocating compressor on the offshore platform, the vibration signal from the reciprocating compressor on the offshore platform was investigated by applying the harmonic wavelet packet transform. The energy variation of vibration signal under the different frequencies was discussed. It was shown that the vibration energy of the reciprocating compressor in the horizontal and vertical directions is mainly concentrated in the low frequency of 25Hz and 50Hz, and the vibration energy of other frequency is small and smooth. In the axial direction, the vibration energy of the reciprocating compressor extends to the medium-high frequency, and the large energy appears in the 225 Hz. Therefore, the harmonic wavelet packet transform can be used to research the vibration characteristics of the reciprocating compressor on the offshore platform.
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Seyidakhmedov, Natig. "STUDY OF DESIGN FEATURES AND MAIN CAUSES OF VALVE FAILURES IN RECIPROCATING COMPRESSORS." ETM - Equipment, Technologies, Materials 05, no. 01 (January 20, 2021): 60–63. http://dx.doi.org/10.36962/etm0501202060.
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At present, the compressor industry of the oil sector of Azerbaijan is one of its leading links. If by the end of the 20th century the number of wells using the gas-lift method of production was about 42-46%, then by the end of 2019 it exceeded the 50% level. Compressors are an integral part of this technological process and require a strict improvement in the technical level of their safe operation. Therefore, improving the technical and economic performance of the compressor unit is an important task. This work is devoted to the study of design features and the main causes of valve failures in reciprocating compressors, as well as an assessment of their safe operation. Keywords: reciprocating compressor, reliability, valve, safety, gas-lift extraction method.
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Wu, T. T., and W. H. Hsieh. "Compression Processes and Performance Analysis of a High-Pressure Reciprocating Gas Compressor." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 210, no. 2 (March 1996): 153–65. http://dx.doi.org/10.1243/pime_proc_1996_210_182_02.
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Compression processes and compressor performance in a two-stage 41.34 MPa (6000 lb/in2) reciprocating gas compressor were investigated by transient multi-dimensional and transient global thermodynamic models. The transient multi-dimensional model was adopted to predict the two-dimensional compression processes in the second-stage cylinder of the high-pressure reciprocating gas compressor. Calculated results showed no significant temperature gradients anywhere in the compressor cylinder except near the wall, throughout one complete compressor cycle. On the other hand, the calculated velocity fields and streamline contours showed a convergent flow pattern during the process of compression with discharge and a large recirculation vortex during the process of expansion with suction. A parametric study based on the transient global thermodynamic model was conducted to investigate the effect of various parameters, that is clearance volume, wall temperature of cylinder head and stroke length, on the compressor performance. Among these parameters, it was found that the clearance volume had the strongest effect on the compressor performance. A reduced clearance volume increased volumetric efficiency. Also, it was found that decreasing the stroke length would not degrade the compressor performance, but it could reduce the compressor size and thereby the manufacturing cost significantly.
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Samuel, K. John, R. Thundil Karuppa Raj, and G. Edison. "An Overview of Parameters Influencing the Performance of Hermetic Reciprocating Compressor for Domestic Applications." International Journal of Air-Conditioning and Refrigeration 26, no. 04 (December 2018): 1830003. http://dx.doi.org/10.1142/s2010132518300033.
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The performance of the refrigeration system mainly depends on the hermetic compressor. Of different compressors used in the refrigeration and air conditioning industries, hermetic reciprocating compressors are still efficient and have its place in domestic applications. This paper presents a review of most critical parameters and their influence on the hermetic reciprocating compressor performance. A detailed study is done on parameters like backflow, effective force and flow areas, valve dynamic behavior, etc. This study mainly concentrated on compressor valves which influence the performance of the hermetic compressor to a much greater extent. Finally, the study reveals that these parameters are playing a vital role in influencing the performance of the refrigeration system. Advanced numerical techniques involving combining fluid flow and structural analysis involving Fluid Structure Interaction (FSI) may give a better insight of the flow physics happening inside the compressors and the effect of fluid force on valve fluttering, back pressure and dynamics characteristics can be revealed in depth to optimize the performance of the hermetic compressor for household applications involving air conditioners, refrigerators, water coolers, chillers, etc.
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Zhu, Yu Feng. "Development of Reciprocating Air-Cool Oilless Compressors Series Product." Advanced Materials Research 201-203 (February 2011): 1429–32. http://dx.doi.org/10.4028/www.scientific.net/amr.201-203.1429.
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Research and development are made about reciprocating air-cool oilless compressors series products in order to meet maket demond. Piston pings and guiding pings are made by filled PTFE material to achieve the oilless lubrication between cylinders and pistons. Grease lubrication bearings are used and designed in structure to achieve the oilless lubrication of connecting rod larger heads, connecting rod smaller heads and main bearings. The optimal dynamic balance can achieve by a new-type dynamic balance system which are made up of inner balance weight and outer balance weight to make the compressor run stationary. The crankcase bottom are all opened, three-stage fans are used to cool the compressor, these make the compressor cool better to improve the compressor life. The radius-length ratio λ is taken as 1/6 to 1/7 to reduce side pressure greatly. The reciprocating air-cool oilless compressors series products have better properties, can run smoothly and reliably and go into mass production.
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Chang, Ying-Chun, Min-Chie Chiu, and Ji-Lin Xie. "Noise Elimination of Reciprocating Compressors Using FEM, Neural Networks Method, and the GA Method." Archives of Acoustics 42, no. 2 (June 27, 2017): 189–97. http://dx.doi.org/10.1515/aoa-2017-0021.
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Abstract Industry often utilizes acoustical hoods to block noise emitted from reciprocating compressors. How-ever, the hoods are large and bulky. Therefore, to diminish the size of the compressor, a compact discharge muffler linked to the compressor outlet is considered. Because the geometry of a reciprocating compressor is irregular, COMSOL, a finite element analysis software, is adopted. In order to explore the acoustical performance, a mathematical model is established using a finite element method via the COMSOL commercialized package. Additionally, to facilitate the shape optimization of the muffler, a polynomial neural network model is adopted to serve as an objective function; also, a Genetic Algorithm (GA) is linked to the OBJ function. During the optimization, various noise abatement strategies such as a reverse expansion chamber at the outlet of the discharge muffler and an inner extended tube inside the discharge muffler, will be assessed by using the artificial neural network in conjunction with the GA optimizer. Consequently, the discharge muffler that is optimally shaped will decrease the noise of the reciprocating compressor.
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Almeida, Igor Marcel Gomes, Cleiton Rubens Formiga Barbosa, and Francisco de Assis Oliveira Fontes. "METHODS OF WEAR TESTS FOR HERMETIC RECIPROCATING COMPRESSORS: AN OVERVIEW." HOLOS 4 (September 9, 2016): 86. http://dx.doi.org/10.15628/holos.2016.2078.
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The refrigerants being used in vapor compression processes have specific thermodynamic properties, which are decisive for the performance of the compressor of the system. The Montreal and the Kyoto protocols initiated a discussion of alternative refrigerants, which lead to new requirements of the compressor. The reliability of reciprocal compressors has become a leading field for compressor research. One of the main tools in the reliability field is accelerated degradation/life testing (ADT or ALT). These tests are designed to provide life estimates or to define lower bounds of product/parts reliability at shortened periods of time. The objective of this paper is to discuss the literature on accelerated life testing of reciprocating hermetic compressors, focusing on the wear of mechanical components. Several test methodologies are discussed as well as the procedures used to wear quantification. It is noted that there are numerous test methodologies. This fact can be attributed to the lack of standardization updated. Most authors have been focused the tests development to assess the scuffing occurrence in components. The evaluation of wear (qualitative and quantitative) is carried through optical microscopy techniques, scanning electron microscopy, surface roughness, physical-chemical analysis of the oil and electric power consumption. Test methodologies are presented based on critical analysis of the existing literature and the current scenario of refrigerants and lubricants development.
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Gong, Jian Chun, and Peng Fei Tian. "The Study of Fault-Diagnosis Method of Reciprocating Compressor Based on Fuzzy Fault Tree Theory." Applied Mechanics and Materials 217-219 (November 2012): 2649–53. http://dx.doi.org/10.4028/www.scientific.net/amm.217-219.2649.
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Since working condition of reciprocating compressor is awfully bad and it has bigger risk in operation and higher fault rate，it is of importance to study reciprocating compressor fault. Fault tree has been established in this paper by analyzing factors leading reciprocating compressor fault based on the method of fault tree. 21 minimum cut sets leading to reciprocating compressor fault can be gotten through qualitative analyses on this fault tree，the happening probability of the top event can be calculated and the importance of the basic event s can be analyzed through quantitative analysis. The expert inquiry method combined with fuzzy sets theory is adopted to assess the happening probability of the basic events and top events.
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Widodo, Achmad, Satrio Budi Prasojo, and Ismoyo Haryanto. "THE USE OF TWO-DIMENSIONAL AUTOCORRELATION OF VIBRATION SIGNAL FOR FAULT DETECTION OF RECIPROCATING COMPRESSORS." ROTASI 18, no. 1 (January 1, 2016): 18. http://dx.doi.org/10.14710/rotasi.18.1.18-22.
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Reciprocating compressors are the oldest kind of compressors designed for mass production. These compressors still become- the best choice for several industrial application due to their advantages that give high compression ratio and low mass flow. There are many cases of reciprocating compressors faults, such as fault in valve, wrist-pin, and crankpin bore on connecting rod. In this paper, fault detection of such compressors due to exhaust valve and pin bore faults will be presented based on the vibration signal. At first, time domain and frequency domain will be the basic method for analysis and then it will be completed by spectrogram and two-dimensional autocorrelation. The patterns of vibration signals were analyzed and compared through their vibration signatures. Vibration signatures could give informations related to impending faults in the compressors. Therefore, the fault diagnostics of compressor could be realized
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Lv, Qian, Liuxi Cai, Xiaoling Yu, Haihui Ma, Yun Li, and Yue Shu. "An Automatic Fault Diagnosis Method for the Reciprocating Compressor Based on HMT and ANN." Applied Sciences 12, no. 10 (May 20, 2022): 5182. http://dx.doi.org/10.3390/app12105182.
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The health management of the reciprocating compressor is crucial for its long term steady operation and safety. Online condition monitoring technology for the reciprocating compressor is almost mature, whereas the fault diagnosis technologies are still insufficient to meet the need. Therefore, in this paper, a novel fault detection method for the reciprocating compressor based on digital image processing and artificial neural network (ANN) was proposed. This method is implemented to the sectionalized pressure–volume (p–V) curves, which are obtained by dividing a working cycle in the cylinder into four thermal processes, including expansion, suction, compression and discharge. Hit-or-miss transform is adopted to extract the comprehensive gradients of expansion and compression curves, and vertical projection transform is applied to extract the vertical projection features. Finally, all of the features are fed to an ANN to do classification. To validate the proposed method, a seeded fault testing was conducted to collect real running data. The results showed that the new approach shows a good performance, with a high classification accuracy of 97.9%.
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Parulekar, Prashant S., Richard Hudson, and Harrison Boyd. "Significant reliability improvements in reciprocating gas compressor packages at Arrow Energy." APPEA Journal 58, no. 1 (2018): 168. http://dx.doi.org/10.1071/aj17046.
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Arrow Energy operates a fleet of four-stage reciprocating compressors in the Surat Basin, boosting low-pressure coal-seam gas (at 60 kPag) to transmission pipeline pressure (in excess of 9000 kPag). Historically, the compressors and the gas engine drivers exhibited persistent problems associated with high vibrations, inadequate engine and process gas cooling, poor compressor valve reliability and premature engine component failures. Hot Queensland summer conditions further exacerbated these problems, which resulted in frequent unit trips during hot periods when gas and electricity prices demanded consistent gas production at nameplate capacity. Since 2014, Arrow Energy has carried out systematic analytical studies to establish the compressor package component limitations and develop technical solutions to address these. Stub shaft-driven air coolers, compressor valves, gas engine heads and valves, compressor frame and crosshead mounting arrangements were some of the key components studied in detail. Utilising systematically designed field tests with laboratory calibrated test instruments, scale model laboratory tests, advanced computer simulations, data analytics and new technology trials, several key design modifications were implemented. The outcome of these design changes has enabled Arrow Energy to achieve a step-change in reliability for the better, with each reciprocating compression package (including gas engine driver) operating in excess of 98% reliability. The implemented changes were executed at minimal cost and resulted in significant reduction in maintenance costs. The increased reliability and consistent production during the peak summer hours easily justified the modifications made to the packages. This paper describes the technical work undertaken, changes implemented and their outcomes.
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Wang, Lingzi, Jianmei Feng, Mingfeng Wang, Zenghui Ma, and Xueyuan Peng. "Leakage Characteristic Identification of Labyrinth Seals on Reciprocating Piston through Transient Simulations." Mathematical Problems in Engineering 2019 (September 25, 2019): 1–12. http://dx.doi.org/10.1155/2019/3765732.
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In the reciprocating labyrinth piston compressor, the characteristic of the internal leakage is crucial for the leakage management and performance improvement of the compressor. However, most of the published studies investigated the rotor-stator system, and those who study the reciprocating piston-cylinder system basically focus on the effects of the geometrical parameters. These conclusions could not directly be applied to predict the real-time leakage flow rate through the labyrinth seal because of the fast reciprocating motion of the piston, which will cause continually pressure change in two compression chambers, and then the pressure fluctuation will affect the flow through the labyrinth seal. A transient simulation model employing the multiscale dynamic mesh, which considers the effect of the reciprocating motion of the piston in the cylinder, is established to identify the characteristics of the internal leakage. This model was verified by a specially designed compressor, and the influence of various parameters was analyzed in detail. The sealing performance decreased linearly with the increase in the pressure ratio, and higher pressure inlet leads to higher leakage flow under the same pressure ratio. The labyrinth seal performance positively correlated to the increase of the rotational speed. Leakage characteristics of five working mediums were carried out, and the results indicated that the relative leakage decreased with an increase in the relative molecular mass. From this study, the realistic internal leakage flow rate under different operating parameters in the reciprocating labyrinth piston compressor could be predicated.
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Deng, Rongfeng, Yubin Lin, Weijie Tang, Fengshou Gu, and Andrew Ball. "Object-Based Thermal Image Segmentation for Fault Diagnosis of Reciprocating Compressors." Sensors 20, no. 12 (June 18, 2020): 3436. http://dx.doi.org/10.3390/s20123436.
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As an essential mechanical device in many industrial applications, reciprocating compressors have a high demand for operating efficiency and availability. Because the temperature of each part of a reciprocating compressor depends considerably on operating conditions, faults in any parts will cause the variation of the temperature distribution, which provides the possibility to distinguish the fault type of reciprocating compressors by differentiating the distribution using infrared thermal imaging. In this paper, three types of common fault are laboratory experimented in an uncontrolled temperature environment. The temperature distribution signals of a reciprocating compressor are captured by a non-contact infrared camera remotely in the form of heat maps during the experimental process. Based on the temperature distribution under baseline condition, temperature fields of six main components were selected via Hue-Saturation-Value (HSV) image as diagnostic features. During the experiment, the average grayscale values of each component were calculated to form 6-dimension vectors to represent the variation of the temperature distribution. A computational efficient multiclass support vector machine (SVM) model is then used for classifying the differences of the distributions, and the classification results demonstrate that the average temperatures of six main components aided by SVM is a promising technique to diagnose the faults of reciprocating compressors under various operating conditions with a classification accuracy of more than 99%.
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Marchi, D., and C. J. L. Hermes. "Thermodynamic evaluation of two portable cooler running with reciprocating and mini-rotary compressors." Revista de Engenharia Térmica 21, no. 1 (July 8, 2022): 54. http://dx.doi.org/10.5380/reterm.v21i1.86690.
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Small-capacity refrigeration has got an increasing attention of the consumermarket. In addition to the efficiency of electric equipment, the demand forcompactness has also become a relevant requirement. Among thealternatives available to cool down small cabinets, mechanical vaporcompression refrigeration remains prominent due to its satisfactoryperformance when compared to other cooling technologies. Compressorindustries have invested in the development of compact and efficientproducts, exploring different compression principles for small-capacityapplications, as is the case of mini-rotary compressors. In this context, theobjective of the present work is to assess the thermodynamic performanceof a 38-liter portable vapor compression refrigeration system running withtwo different compressors designed for small-capacity applications: minirotaryand reciprocating. Experimental tests were carried out at threedifferent ambient temperatures (16, 25 and 32 °C) in order to obtain the keyperformance parameters for each compressor (e.g., power consumption,cooling capacity, internal air temperature, and the condensing andevaporating temperatures). Finally, thermodynamic analyses wereconducted to account for the internal and external irreversibilities by meansof second law efficiencies, allowing for a comparison of the systemperformance running with both compressors in the same thermodynamicgrounds. Albeit a refrigeration (second law) efficiency by 25% higher wasobserved for the reciprocating compressor, it provided a smaller coolingcapacity and, therefore, led to a higher pull-down time.
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Shaw, Dein, Chien Ting Liu, Jyun Yu Cai, and Yuan Cheng Sun. "Efficiency Analysis of Subsystems of Compressed Air Wind Energy System." Applied Mechanics and Materials 284-287 (January 2013): 1039–45. http://dx.doi.org/10.4028/www.scientific.net/amm.284-287.1039.
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This study works on the efficiency analysis of a compressed air wind energy system which is composed of a windmill, a continuous variable planetary (CVP) transmission, a flywheel, a clutch, a reciprocating compressor, and an air tank. To make the system operate at its best performance, the subsystem characteristic must be fully understood. In this study, we examine three main subsystems of the wind energy system: windmill, CVP transmission and reciprocating compressor thoroughly by experiments. The characteristic of these subsystems are discovered based on the different operating conditions. The performance characteristics of these subsystems offer a reference for the operation design of compressed air wind energy system.
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Deng, Geng Qing, and Rong Wang. "Foundation Design for Reciprocating Compressor." Applied Mechanics and Materials 190-191 (July 2012): 1282–85. http://dx.doi.org/10.4028/www.scientific.net/amm.190-191.1282.
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The problem of the foundation design of the reciprocation compressor with four cylinders is investigated. Some useful terms are retained, which include possible vibration modes, fatigue failures, environmental demands etc. The selection foundations are typical and commonly used in many industry plants. Cross references have been made to other parts of the paper at each design step in order to illustrate the utilization of previously derived formulae.
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Zhang, Ying, Jinchen Ji, and Bo Ma. "Reciprocating compressor fault diagnosis using an optimized convolutional deep belief network." Journal of Vibration and Control 26, no. 17-18 (January 21, 2020): 1538–48. http://dx.doi.org/10.1177/1077546319900115.
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This article proposes an optimized convolutional deep belief network for fault diagnosis of reciprocating compressors. Sparse filtering is first used to compress raw signal into compact time series by refining the most representative information and to reduce the computational burden. Then, the proposed convolutional deep belief network is adopted to learn the unsupervised features of the compressed signal without the need of feature extraction by human effort. To improve the generalization ability of the network, an optimized probabilistic pooling out is proposed in this article to replace the standard one in the pooling layer of the convolutional deep belief network. Finally, the unsupervised features calculated by the optimized convolutional deep belief network are fed as the input of the softmax regression classifier for fault identification. Four types of vibration signals reflecting different operating conditions are collected from the industry to validate the effectiveness of the proposed method. The obtained results demonstrate that the proposed convolutional deep belief network method can achieve a higher classification accuracy rate of up to 91% for fault diagnosis than the traditional methods and accomplish the fault diagnosis of reciprocating compressor effectively.
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Shu, Yue, Jun Xiao, Zhilong Liu, and Fengyu Li. "Research on transient dynamic behavior and stress of reciprocating compressor valve under air volume regulation." Journal of Physics: Conference Series 2254, no. 1 (April 1, 2022): 012050. http://dx.doi.org/10.1088/1742-6596/2254/1/012050.
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Abstract By establishing the motion equation of the air valve under the condition of air volume adjustment, the motion law of the air valve in the process of expansion, compression, suction and exhaust of the reciprocating compressor under different loads is calculated, and the reciprocating compressor with stepless air volume adjustment is used. The compressor unit verifies the calculation results. The maximum stress of the valve plate under different loads is analyzed, and the results show that in the ideal state where the fork pressure disappears instantaneously, the adjustment method of the partial stroke pressure opening suction valve has a greater influence on the stress concentration of the valve plate than the normal condition; in the partial stroke pressure opening suction valve adjustment method, the free retraction speed and stress of the valve plate will increase as the compressor load decreases.
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Shu, Yue, Jun Xiao, Zhilong Liu, and Fengyu Li. "Research on transient dynamic behavior and stress of reciprocating compressor valve under air volume regulation." Journal of Physics: Conference Series 2254, no. 1 (April 1, 2022): 012050. http://dx.doi.org/10.1088/1742-6596/2254/1/012050.
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Abstract By establishing the motion equation of the air valve under the condition of air volume adjustment, the motion law of the air valve in the process of expansion, compression, suction and exhaust of the reciprocating compressor under different loads is calculated, and the reciprocating compressor with stepless air volume adjustment is used. The compressor unit verifies the calculation results. The maximum stress of the valve plate under different loads is analyzed, and the results show that in the ideal state where the fork pressure disappears instantaneously, the adjustment method of the partial stroke pressure opening suction valve has a greater influence on the stress concentration of the valve plate than the normal condition; in the partial stroke pressure opening suction valve adjustment method, the free retraction speed and stress of the valve plate will increase as the compressor load decreases.
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Hough, D. "The Design, Selection, and Application of Reciprocating Compressors for Fuel Gas Service." Journal of Engineering for Gas Turbines and Power 117, no. 1 (January 1, 1995): 88–93. http://dx.doi.org/10.1115/1.2812786.
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This paper describes the design and application of reciprocating compressors for fuel gas service. In fuel gas services and particularly power generation it is important to minimize all parasitic losses. Efficiency over a range of operating conditions requires sophisticated control systems and the paper describes the merits of each system and their effect on operating cost. Some of the important operational considerations are described together with major design features. The use of staging and the advantages of a modular approach to compressor design are also covered, which demonstrates the suitability of the reciprocating compressor for fuel gas service particularly when variation of inlet conditions cannot be avoided.
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Lin, Rui Lin, and Bo Yun Liu. "Simulation for Building Fault Swatches for Reciprocating Compressor." Advanced Materials Research 121-122 (June 2010): 243–48. http://dx.doi.org/10.4028/www.scientific.net/amr.121-122.243.
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In the progress of fault diagnosis, the most difficult problem is how to build up the fault swatchs for diagnosis for the fault of reciprocating compressor. As for the working progress mathematic model of reciprocating compressor, some familiar faults are simulated in this paper. The method of building fault swatches of the Z-0.03/7 compressor is studied and tested. Using the fault swatches, the fault diagnosis of compressor has been carried on.
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Busarov, S. S., R. E. Kobylskiy, and N. G. Sinitsin. "Theoretical Assessment of Possible Reduction in Mass Leaks of Working Medium from a Reciprocating Compressor Chamber." Herald of the Bauman Moscow State Technical University. Series Mechanical Engineering, no. 2 (141) (June 2022): 101–11. http://dx.doi.org/10.18698/0236-3941-2022-2-101-111.
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The paper considers mass leaks of compressible medium through piston seals from the working chamber of a reciprocating compressor and possible ways of reducing those. We propose a monolithic lip piston design that should reduce mass leaks of the working medium and increase the efficiency of the piston compressor unit. We developed a computational technique that takes into account the processes inside the actual second compressor stage, including gas flows through imperfect seals in the working chamber. Combining previously published analytical equations with our promising piston seal design led to improving the following integral characteristics of the compressor stage: energy conversion efficiency, volumetric efficiency, gas compression temperature. Using the monolithic lip piston proposed should increase the reciprocating compressor unit efficiency by approximately 18 % via reducing the equivalent gap and increase volumetric efficiency by approximately 20 %, as mass leaks decrease while the mass of gas in the working chamber increases; as a result, the gas compression temperature should increase by approximately 18 %. We consider the monolithic lip piston proposed to be a promising piston seal design capable of reducing existing mass leaks, improving the indicated efficiency of the long-stroke second compressor stage along with the volumetric efficiency, and increasing the performance
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Li, Hai Xia, Wei Jiang, Zhi Jun Sun, and Zhen Wei Zhu. "Experimental Investigation on Reciprocating Air Compressor Performance." Advanced Materials Research 230-232 (May 2011): 1269–73. http://dx.doi.org/10.4028/www.scientific.net/amr.230-232.1269.
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This study presents an accurate measurement method for measuring air pressure and temperature of air compressor when a reciprocating gas compressor performance. The design and main functions of the automatic acquisition and testing system for air compressor performance was introduced. The system has the advantages of excellent practicability, rapidity, stability, reliability, operability and good security feature. The system can give real-time process monitoring on test data and compile test reports of the reciprocating two stages compressor. The system can display, save and print performance curve, respectively.
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Wang, Jiang Ping, and Teng Fei Duan. "Fault Diagnosis with Mult-Signal Test for Reciprocating Compressor." Applied Mechanics and Materials 741 (March 2015): 294–97. http://dx.doi.org/10.4028/www.scientific.net/amm.741.294.
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High frequency vibration signal, cylinder-inside pressure and ultrasonic wave are monitored under working condition of a reciprocating compressor. High frequency vibration signal and ultrasonic wave are processed using high frequency band-pass filtering, and then enveloped. The pressure signal is filtered with a low-pass digital filter. The fault causes of the machine can be determined by the enveloped waveform of vibration signal and ultrasonic wave, as well as the pressure curve comprehensively. We can confirm the truth that this fault diagnosis method is accurate and reliable for reciprocating compressors through a number of the results of fault diagnosis.
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Yanagida, Etsugo, and Tadao Kawai. "649 iagnosis of a reciprocating compressor." Proceedings of the Dynamics & Design Conference 2006 (2006): _649–1_—_649–6_. http://dx.doi.org/10.1299/jsmedmc.2006._649-1_.
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McCarthy, Daniel J. "Prognostics for a reciprocating air compressor." Journal of the Acoustical Society of America 101, no. 5 (May 1997): 3029. http://dx.doi.org/10.1121/1.418572.
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Steinrück, H., R. Aigner, and G. Machu. "Transversal waves in a reciprocating compressor." Acta Mechanica 201, no. 1-4 (August 27, 2008): 231–47. http://dx.doi.org/10.1007/s00707-008-0061-3.
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Becerra, J. A., F. J. Jimenez, M. Torres, D. T. Sanchez, and E. Carvajal. "Failure analysis of reciprocating compressor crankshafts." Engineering Failure Analysis 18, no. 2 (March 2011): 735–46. http://dx.doi.org/10.1016/j.engfailanal.2010.12.004.
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