Relevant bibliographies by topics / Compressor efficiency

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Compressor efficiency'

Author: Grafiati
Published: 4 June 2021
Last updated: 5 February 2022

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Journal articles on the topic "Compressor efficiency"

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Qi, Zhaogang, Jun Yang, Jiangping Chen, Haifeng Zhang, and Li Zhang. "Experimental investigation on a two-stage CO2 compressor with high back pressure." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 226, no. 7 (2011): 1811–20. http://dx.doi.org/10.1177/0954406211428245.

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In this article, two samples of two-stage rolling piston CO2 compressors with and without intercooler are developed and experimentally studied. These CO2 compressors are high back-pressure compressors, which mean the pressure inside compressor shell is the discharge pressure of the second stage. A test rig was designed to measure the performance and efficiency of this compressor. The test results show that the suction vapor temperature at the second stage inlet pipe has few influences on the performance and efficiency of the first compressor sample with intercooler. The volumetric efficiency l
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Kryshtopa, S. I., L. I. Kryshtopa, M. М. Hnyp, I. M. Mykytiy, and M. M. Tseber. "Development of energy efficient system of gas cooling of mobile diesel compressor stations of oil and gas industry." Oil and Gas Power Engineering, no. 1(33) (September 3, 2020): 81–89. http://dx.doi.org/10.31471/1993-9868-2020-1(33)-81-89.

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The developments of domestic and foreign specialists in the field of improving the energy efficiency of mobile diesel compressor stations of the oil and gas industry is studied. The disadvantages of existing mobile diesel compressor stations in terms of their energy efficiency are identified. Theoretical studies of energy efficiency directions and designs of existing mobile diesel compressor stations have been carried out. It has been studied that for efficient operation of a compressor station it is rational to increase the load of compressors and organize the operation of equipment in energy
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Tsutsumi, S., and J. Boone. "The Design, Selection, and Application of Oil-Injected Screw Compressors for Fuel Gas Service." Journal of Engineering for Gas Turbines and Power 117, no. 1 (1995): 81–87. http://dx.doi.org/10.1115/1.2812785.

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Fuel gas compressors installed in cogeneration systems must be highly reliable and efficient machines, like the other main components, such as gas turbines, gas engines, etc. In the range of gas flow rate and pressure conditions generally required for such systems, the oil-injected screw compressor is often the most suitable compressor type for these requirements. Advantages of oil injected screw compressors are: improved compression efficiency; low discharge gas temperature; high reliability; simple mechanical construction; which all result from injection of lubricant into the compressor. Inj
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Syahrisal, Syahrisal. "Analisis Kinerja Sistem Kompresor Udara Botol Angin Sebagai Sumber Pembangkit Generator Di Laboratorium Engine Hall Politeknik Ilmu Pelayaran Makassar." Jurnal Teknik Mesin Sinergi 19, no. 1 (2021): 25. http://dx.doi.org/10.31963/sinergi.v19i1.2734.

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The compressed air supply device on the ship is auxiliary equipment used for starting the engine. The purpose of this study is to analyze the performance of the air compressor as a generator source in the Engine Hall laboratory. This study seeks to determine the performance of the compressor sistem as a generator drive in the Engine Hall Laboratory and the efficiency of the compressor sistem. The methodology used in this research is a quantitative method by calculating the performance of the compressor sistem as a generator, including compressors and wind bottles. The conclusion of this study
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Liu, Guang Lin, Yuan Wei Lu, Jin Liang Xu, Bing Zhang, and Wei Zhang. "Optimization of Compressed Air Energy Storage System Parameters." Advanced Materials Research 634-638 (January 2013): 787–91. http://dx.doi.org/10.4028/www.scientific.net/amr.634-638.787.

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In this current paper, the influence of system efficiency and system parameters for simple compressed energy storage system were studied. EES software is used to simulate the pressure of system and efficiency of compressors, expanders, and pump for getting the optimal parameters of system. The results show that: for the simple system, when the expander inlet pressure is 6000kPa and compressor outlet pressure is 4000kPa, the system efficiency could get the maximum, and it is 76.2%. It is a better way for improving the efficiency of compressor and expander than the pump for system performance.
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LI, QUBO, DEMISS A. AMIBE, and NORBERT MÜLLER. "USING WATER VAPOR AS REFRIGERANT IN MULTISTAGE VARIABLE SPEED TURBO COMPRESSOR TO IMPROVE SEASONAL ENERGY EFFICIENCY RATIO OF AIR CONDITIONING." International Journal of Air-Conditioning and Refrigeration 19, no. 02 (2011): 131–40. http://dx.doi.org/10.1142/s2010132511000491.

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An air conditioning system using water as refrigerant (R718) that compresses water vapor with multistage stage variable speed axial compressor with intercooling between stages by water injection is considered. Four stage compression with flash intercooling resulted in 50% improvement of coefficient of performance (COP) at full load compared to conventional refrigerants like R134a. The energy efficiency of an air conditioning unit is specified by seasonal energy efficiency ratio (SEER). SEER is defined as the ratio of cooling output of an air conditioner measured and electrical energy consumpti
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Ren, Xu, Cai, Wang, and Li. "Experiments on Air Compression with an Isothermal Piston for Energy Storage." Energies 12, no. 19 (2019): 3730. http://dx.doi.org/10.3390/en12193730.

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Air is usually compressed adiabatically in the compressor. As the operating speed of compressors can be several thousand rpm, heat generated during compression cannot be sufficiently transmitted to the environment in such a short time. It is for this reason that compressor efficiency is limited. Isothermal compression could be an alternative choice applied on industrial compressor and compressed air energy storage (CAES). This paper proposed a new kind of piston to perform isothermal compression. Surface area of such isothermal piston structure is larger. A certain amount of fluid at the chamb
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Novecosky, T. "Axial Inlet Conversion to a Centrifugal Compressor With Magnetic Bearings." Journal of Engineering for Gas Turbines and Power 116, no. 1 (1994): 152–55. http://dx.doi.org/10.1115/1.2906784.

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NOVA’s Alberta Gas Transmission Division transports natural gas via pipeline throughout the province of Alberta, Canada, exporting it to eastern Canada, United States, and British Columbia. There is a continuing effort to operate the facilities and pipeline at the highest possible efficiency. One area being addressed to improve efficiency is compression of the gas. By improving compressor efficiency, fuel consumption and hence operating costs can be reduced. One method of improving compressor efficiency is by converting the compressor to an axial inlet configuration, a conversion that has been
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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 (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
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Stone, C. R. "The Efficiency of Roots Compressors and Compressors with Fixed Internal Compression." Proceedings of the Institution of Mechanical Engineers, Part A: Power and Process Engineering 202, no. 3 (1988): 199–205. http://dx.doi.org/10.1243/pime_proc_1988_202_026_02.

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It is well known that compressors, such as the Roots compressor, with no internal compression have a low efficiency. Two approaches (1, 2) to the efficiency analysis are compared here, and the correct approach is identified. The results for the efficiency of ideal systems are placed in context by considering typical applications, along with methods for improving the efficiency. The significance of the internal leakage losses reported elsewhere is established and comparisons are made with the inherent thermodynamic losses. The analysis is extended to cover compressors with some internal compres
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Dissertations / Theses on the topic "Compressor efficiency"

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Ekberg, Kristoffer. "Effects of Non Ideal Inlet and Outlet Pipes on Measured Compressor Efficiency." Thesis, Linköpings universitet, Fordonssystem, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-119700.

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The thesis is about investigating the inlet and outlet pipes effect on the compressors measured performance. From measurements made in a gas stand, a thermodynamic model is to be created and the compressor efficiency further investigated. The temperatures and pressures entering and leaving the compressor does not have to be the same as the temperatures measured in the gasstand, because of the thermodynamics of the pipes that connects the measurement equipment and the compressor. During a gasstand test the turbocharger is connected in a test bench, it is connected with pipes on both the compres
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Nóbrega, Claudia Rosa do Espírito Santo 1985. "Análise da eficiência energética de um sistema de refrigeração utilizando compressor de velocidade variável." [s.n.], 2015. http://repositorio.unicamp.br/jspui/handle/REPOSIP/265752.

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Orientador: Luiz Felipe Mendes de Moura<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecânica<br>Made available in DSpace on 2018-08-28T12:01:47Z (GMT). No. of bitstreams: 1 Nobrega_ClaudiaRosadoEspiritoSanto_M.pdf: 49731796 bytes, checksum: 231227e66649d1f3e29b15b3a64c3913 (MD5) Previous issue date: 2015<br>Resumo: O presente trabalho refere-se a uma investigação experimental do comportamento de um sistema de refrigeração utilizando um compressor de rotação variável. Diante da necessidade do uso racional de energia elétrica, estudos entorno da efic
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Cates, Charles C. "A Computational Study of Axial Compressor Rotor Casing Treatments and Stator Land Seals." VCU Scholars Compass, 2006. http://hdl.handle.net/10156/1579.

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Abou, Rached Ghady. "Experimental and numerical study of a cooled compression by oil injection in a screw compressor." Thesis, Université Paris sciences et lettres, 2020. http://www.theses.fr/2020UPSLM057.

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L’objectif de cette thèse est de concevoir un système d’injection d’huile pour réussir la compression refroidie pour les compresseurs à vis utilisant le R134a, un réfrigérant à basse pression. Les atomiseurs bi fluides ont été identifiés pour générer des gouttelettes d’huile assez fine et adaptées du régime de pression du R134a. Une étude expérimentale est conduite pour caractériser cette famille d’injecteurs en termes de taille de particules et débits massiques. Des corrélations sont proposées pour déterminer ces deux entités en fonction des pressions aux terminaux de l’injecteur. Un système
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Alipour, Philip Baback, and Muhammad Ali. "An Introduction and Evaluation of a Lossless Fuzzy Binary AND/OR Compressor." Thesis, Blekinge Tekniska Högskola, Sektionen för datavetenskap och kommunikation, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-6141.

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We report a new lossless data compression algorithm (LDC) for implementing predictably-fixed compression values. The fuzzy binary and-or algorithm (FBAR), primarily aims to introduce a new model for regular and superdense coding in classical and quantum information theory. Classical coding on x86 machines would not suffice techniques for maximum LDCs generating fixed values of Cr &gt;= 2:1. However, the current model is evaluated to serve multidimensional LDCs with fixed value generations, contrasting the popular methods used in probabilistic LDCs, such as Shannon entropy. The currently introd
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Nelson, Berg Joakim, and Jonathan Lee. "A pre-study on the compressed air system at Ljunghaell AB." Thesis, Högskolan i Halmstad, Sektionen för ekonomi och teknik (SET), 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-25648.

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The Swedish industry uses large volumes of compressed air. The compressed air process isenergy intensive and creates large amounts of excess heat. It is therefore important to utilizethe excess heat, optimize the operation of the compressors and to have a regular maintenanceon the system. This thesis is a pre-study to make a compressed air system energy efficient andis done in collaboration with Ljunghäll AB. Ljunghäll AB is one of Northern Europe's leadingdie casting companies and are located in Södra Vi, Sweden. The purpose is to describe andmap the compressed air system in the old part of t
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Soderquist, Daniel Robert. "Analysis of Distortion Transfer and Generation through a Fan and a Compressor Using Full-annulus Unsteady RANS and Harmonic Balance Approaches." BYU ScholarsArchive, 2019. https://scholarsarchive.byu.edu/etd/7401.

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Understanding distortion transfer and generation through fan and compressor blade rows is able to assist in blade design and performance prediction. Using full annulus unsteady RANS simulations, the effects of distortion as it passes through the rotor of a transonic fan at five radial locations (10%, 30%, 50%, 70%, and 90% span) are analyzed. The inlet distortion profile is a 90-degree sector with a 15% total pressure deficit. Fourier distortion descriptors are used in this study to quantitatively describe distortion transfer and generation. Results are presented and compared for three operati
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CHAVES, Eric Nery. "Controle Fuzzy e acionamento a velocidade variável de sistema resfriador de leite." Universidade Federal de Goiás, 2010. http://repositorio.bc.ufg.br/tede/handle/tde/957.

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Made available in DSpace on 2014-07-29T15:08:14Z (GMT). No. of bitstreams: 1 Eric Nery Chaves.pdf: 1402393 bytes, checksum: eb28c97ecabfcf07a31c7bf35ab01e85 (MD5) Previous issue date: 2010-06-17<br>This work presents the application of control techniques to drive single-phase induction motors with the aim of improving the performance of cooling systems. The control system is based on Fuzzy Logic and is applied to a three-phase PWM inverter adapted to drive singlephase motors with volts per hertz technique. The main feature of the work is to control the temperature of the cooling system drive
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Dhollande, Dominique. "Amélioration du rendement énergétique d'une série de pompes à anneau liquide." Valenciennes, 1996. https://ged.uphf.fr/nuxeo/site/esupversions/f5e5f57e-5bc9-4af1-80fa-a93cb0d6c8b6.

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Les pompes à anneau liquide sont des machines de compression volumétriques, principalement utilisées en pompe à vide et qui aspirent des gaz jusqu'à des pressions absolues de 30 mbar. Ces pompes possèdent de nombreux avantages mais un faible rendement global par rapport à l'isotherme qui peut descendre jusqu'à 10% et une consommation en eau importante. L'étude qui a été réalisée a permis d'améliorer ces deux derniers points. Apres une modélisation de la puissance absorbée par la méthode des pertes séparées, des axes de recherche ont pu être déterminés. Différentes solutions technologiques ont
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Fauvel, Simon. "Energy-efficient compressed sensing frameworks for the compression of electroencephalogram signals." Thesis, University of British Columbia, 2013. http://hdl.handle.net/2429/45359.

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The use of wireless body sensor networks (WBSNs) is gaining popularity in monitoring and communicating information about a person's health. In such applications, the amount of data transmitted by the sensor node should be minimized. This is because the energy available in these battery-powered sensors is limited. In this thesis, we study the wireless transmission of electroencephalogram (EEG) signals. We propose novel, energy-efficient compressed sensing (CS) frameworks that take advantage of the inherent structure present in EEG signals (both temporal and spatial correlations) to efficiently
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Books on the topic "Compressor efficiency"

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Development, North Atlantic Treaty Organization Advisory Group for Aerospace Research and. Engine response to distorted inflow conditions: Papers presented at the Propulsion and Energetics 68th (A) Specialists' Meeting, held in Munich, Germany, 8-9 September 1986. AGARD, 1987.

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North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development. Engine Response to Distorted Inflow Conditions. s.n, 1986.

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1955-, Vitter Jeffrey Scott, ed. Efficient algorithms for MPEG video compression. Wiley, 2002.

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Rosário Lucas, Luís Filipe, Eduardo Antônio Barros da Silva, Sérgio Manuel Maciel de Faria, Nuno Miguel Morais Rodrigues, and Carla Liberal Pagliari. Efficient Predictive Algorithms for Image Compression. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-51180-1.

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Mark, Nelson. The data compression book: Featuring fast, efficient data compression techniques in C. M&T Books, 1991.

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Al-Mualla, Mohammed Ebrahim. Video coding for mobile communications: Efficiency, complexity, and resilience. Academic Press, 2002.

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Hogendoorn, R. A. Data compression in computational fluid dynamics. National Aerospace Laboratory, 1986.

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Mark, Nelson. The data compression book: Featuring fast, efficient data compresssion techniques in C. M & T, 1991.

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Currie, Daniel L. Implementation and efficiency of steganographic techniques in bitmapped images and embedded data survivability against lossy compression schemes. Naval Postgraduate School, 1996.

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Lipták, Béla G. Optimization of unit operations: Boilers, chemical reactors, chillers, clean rooms, compressors, condensers, cooling towers, fans, fired heaters, heat exchangers, HVAC systems, pumping stations, reboilers, vaporizers. Chilton Book Co., 1987.

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Book chapters on the topic "Compressor efficiency"

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Dahl, Trygve. "Optimizing Pump and Compressor Selection for Energy Efficiency Using True-Weighted Efficiency (TWE)." In Springer Proceedings in Energy. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-69799-0_52.

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Witek, Lucjan. "Fatigue Analysis of the Compressor Blades with V- Notches." In ICAF 2011 Structural Integrity: Influence of Efficiency and Green Imperatives. Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-94-007-1664-3_57.

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Kishi, Takayuki, Mizuo Kudo, Hiromasa Iisaka, and Nobumi Ino. "High Efficiency, High Reliability Oil Injection Type Helium Screw Compressor." In Advances in Cryogenic Engineering. Springer US, 1992. http://dx.doi.org/10.1007/978-1-4615-3368-9_1.

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Dreksler, Moshe Y., and Takayuki Kishi. "High Efficiency, High Reliability, Improved Oil Injected Helium Screw Compressor." In Supercollider 4. Springer US, 1992. http://dx.doi.org/10.1007/978-1-4615-3454-9_77.

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Jin, Dan, Jingying Tan, and Qing Wang. "Study on Refrigeratory Compressor with Frequency Conversion and Its Economical Efficiency." In Computer and Computing Technologies in Agriculture IV. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-18354-6_53.

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Yang, Xudong, Xiaobo Li, Chao Huang, Xi Wu, and Qilin Cai. "Online Monitoring and Assessment System For Air Compressor Energy Efficiency Based on Wireless Data Transmission." In Lecture Notes in Electrical Engineering. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-5959-4_77.

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Yenipinar, Burak, Cemal Yilmaz, Yusuf Sönmez, and Cemil Ocak. "Design Optimization and Comparison of Brushless Direct Current Motor for High Efficiency Fan, Pump and Compressor Applications." In Trends in Data Engineering Methods for Intelligent Systems. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-79357-9_50.

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Lüdtke, Klaus H. "Improving Efficiency and Operating Range." In Process Centrifugal Compressors. Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-662-09449-5_8.

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Matejek, Brian, Daniel Haehn, Fritz Lekschas, Michael Mitzenmacher, and Hanspeter Pfister. "Compresso: Efficient Compression of Segmentation Data for Connectomics." In Medical Image Computing and Computer Assisted Intervention − MICCAI 2017. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-66182-7_89.

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Panachakel, Jerrin Thomas, and K. C. Finitha. "Energy Efficient Compression of Shock Data Using Compressed Sensing." In Advances in Intelligent Systems and Computing. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-23036-8_23.

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Conference papers on the topic "Compressor efficiency"

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Patil, Vikram C., Jun Liu, and Paul I. Ro. "Efficiency Improvement of a Liquid Piston Compressor Using Metal Wire Mesh." In ASME 2019 Power Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/power2019-1945.

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Abstract Intermittent nature of power from renewable energy resources demands a large scale energy storage system for their optimal utilization. Compressed air energy storage systems have the potential to serve as long-term large-scale energy storage systems. Efficient compressors are needed to realize a high storage efficiency with compressed air energy storage systems. Liquid piston compressor is highly effective in achieving efficient near-isothermal compression. Compression efficiency of the liquid piston can be improved with the use of heat transfer enhancement mechanisms inside the compr
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Casey, Michael V., and Thomas M. Fesich. "On the Efficiency of Compressors With Diabatic Flows." In ASME Turbo Expo 2009: Power for Land, Sea, and Air. ASMEDC, 2009. http://dx.doi.org/10.1115/gt2009-59015.

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In most compressors the flow is adiabatic, but in micro-compressors, and in turbochargers at low speeds, the compression process has both heat transfer and work input. The classical adiabatic efficiency definition found in most text books is then incorrect. This paper extends the text book definitions of compressor efficiency to diabatic flows. The paper explains different compressor efficiency definitions in a logical way and identifies fundamental flaws in the use of isentropic efficiency for a diabatic flow. It shows that the polytropic efficiency can be used with or without heat transfer w
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Sancken, Caleb J., and Perry Y. Li. "Optimal Efficiency-Power Relationship for an Air Motor-Compressor in an Energy Storage and Regeneration System." In ASME 2009 Dynamic Systems and Control Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/dscc2009-2749.

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Compressing air from atmospheric pressure into high pressure storage and expanding the compressed air in reverse is a means of energy storage and regeneration for fluid power systems that can potentially improve energy density by an order of magnitude over existing accumulators. This approach, known as the “open accumulator” energy storage concept, as well as other applications such as compressed air powered cars, rely on the availability of efficient and power-dense air motor/compressors. Increasing power is typically accompanied by reducing efficiency with the trade-off being determined by t
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Grannan, Nicholas D., Michael J. McClearn, Paul J. Litke, John Hoke, and Frederick Schauer. "Trends in JetCAT Microturbojet-Compressor Efficiency." In 55th AIAA Aerospace Sciences Meeting. American Institute of Aeronautics and Astronautics, 2017. http://dx.doi.org/10.2514/6.2017-0552.

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Riofrio, Jose, and Eric J. Barth. "Experimental Operation and Characterization of a Free Piston Compressor." In ASME 2005 International Mechanical Engineering Congress and Exposition. ASMEDC, 2005. http://dx.doi.org/10.1115/imece2005-81743.

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The ongoing design evolution of a free piston compressor (FPC) is presented in this paper. The FPC is a proposed device that utilizes combustion of a hydrocarbon fuel to compress air into a high-pressure supply tank. This device is designed to extract chemically stored energy from the fuel and convert it to potential energy of compressed air, while achieving high conversion efficiency relative to other small-scale portable power supply systems. The chemically stored energy of the hydrocarbon fuel is first converted into kinetic energy of the free piston by the end of the combustion phase. Subs
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Backman, Jari L. H., Arttu Reunanen, Juha Saari, Teemu Turunen-Saaresti, Petri Sallinen, and Hannu Esa. "Effects of Impeller Tip Clearance on Centrifugal Compressor Efficiency." In ASME Turbo Expo 2007: Power for Land, Sea, and Air. ASMEDC, 2007. http://dx.doi.org/10.1115/gt2007-28200.

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The paper describes the results of tip clearance variation experiments in centrifugal compressors. The compressors work at different peripheral Mach number speeds either with vaneless or vaned diffusers. In the experiments, the compressors were operated in a thermally steady state after which the axial positions of the shafts were changed. The changes in the performance of the compressors were recorded and analyzed. The clearance between the impeller and its housing affects the efficiency of the centrifugal compressor. The clearance is optimized to adapt to various phenomena: thermal expansion
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Chen, Hua, and Penny Li. "Compressor Housing Design for Small Turbocharger Compressors." In ASME Turbo Expo 2013: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/gt2013-94250.

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Compressor housing can greatly impact the behavior of centrifugal compressors used in small turbochargers. This is particularly significant in passenger car applications, where constrains on size and cost of manufacturing pose particular challenges to maintaining aerodynamic efficiency. This paper describes the development of a new compressor housing that overcomes these issues whilst delivering good performance. The concept for the improved design was conceived from an understanding of the loss mechanism inside the housing and the relationship between flow losses and housing geometry. The cho
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Szabo, Istvan, and Mark G. Turner. "An Entropy Based Evaluation of Efficiency of a Transonic Compressor Rotor With Water Injection." In ASME Turbo Expo 2008: Power for Land, Sea, and Air. ASMEDC, 2008. http://dx.doi.org/10.1115/gt2008-50248.

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Defining the thermodynamic efficiency of the wet compression process in a compressor is not trivial, since the flow in this case has multiple phases present which interact with each other. In this paper, an approach is presented that calculates the overall entropy creation and thus the isentropic efficiency of a wet compression process in a transonic compressor rotor. The viscous dissipation function is calculated everywhere in the domain in the post-processing phase of the CFD simulation and integrated to the wall, with special treatment in the near-wall regions where high rates of entropy ge
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Skorping, Roald, and Harald Underbakke. "Turbocompressor Revamp: A Low Cost Modification to Considerable Efficiency Improvement." In ASME Turbo Expo 2001: Power for Land, Sea, and Air. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/2001-gt-0227.

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Depletion of oil and gas reservoirs will gradually reduce the wellhead pressure. Consequently, the process equipment for separation and transport of oil and gas will move into off-design operation with reduced efficiency. Turbocompressors are critical equipment used for re-compression, injection or transport of natural gas. Off-design operation may result in a major compressor efficiency drop. Statoil operates several offshore North Sea process platforms where reduction in wellhead pressure is a challenge. This paper describes the experience with compressor revamp on one onshore and one offsho
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Hundseid, O̸yvind, Lars E. Bakken, and Tor Helde. "A Revised Compressor Polytropic Performance Analysis." In ASME Turbo Expo 2006: Power for Land, Sea, and Air. ASMEDC, 2006. http://dx.doi.org/10.1115/gt2006-91033.

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The compressor polytropic head and efficiency analysis are based on the assumption that the compression process follows the path of a constant polytropic exponent n. Both the ASME PTC10-97 and the ISO 5389 refer to the polytropic analysis by John M. Schultz. The procedure utilizes a head correction factor and two compressibility functions to obtain a solution of the integral Δhp = ∫vdp. Present computer technology renders possible a direct integration of the compression path where the variation in actual gas properties along the path is included. This method eliminates the averaging of gas pro
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Reports on the topic "Compressor efficiency"

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Cogswell, Frederick, and Parmesh Verma. High Efficiency Low Global Warming Potential Compressor. Office of Scientific and Technical Information (OSTI), 2018. http://dx.doi.org/10.2172/1439582.

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Tree, D. R., and M. G. McKellar. Efficiency study of oil cooling of a screw compressor. Office of Scientific and Technical Information (OSTI), 1989. http://dx.doi.org/10.2172/6240340.

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Shen, Bo. Development of High Efficiency Window Air Conditioner and Compressor Using Propane (R-290). Office of Scientific and Technical Information (OSTI), 2018. http://dx.doi.org/10.2172/1488701.

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Pan, David. Efficient Data Compression Techniques for Weather Data. Defense Technical Information Center, 2011. http://dx.doi.org/10.21236/ada540395.

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Wu, Kesheng, Ekow J. Otoo, and Arie Shoshani. An efficient compression scheme for bitmap indices. Office of Scientific and Technical Information (OSTI), 2004. http://dx.doi.org/10.2172/841308.

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Wu, Kesheng, Ekow Otoo, and Arie Shoshani. Compressed bitmap indices for efficient query processing. Office of Scientific and Technical Information (OSTI), 2001. http://dx.doi.org/10.2172/808915.

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Gravel, Roland, Carl Maronde, Chris Gehrke, and Scott Fiveland. High Efficiency, Low Emissions Homogeneous Charge Compression Ignition (HCCI) Engines. Office of Scientific and Technical Information (OSTI), 2010. http://dx.doi.org/10.2172/1070178.

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Corgnale, Claudio, Jason Hattrick-Simpers, Martin Sulic, Bruce Hardy, John Weidner, and Joseph Lopata. Metal Hydride Material Development for High Efficiency and Low Cost Hydrogen Compressors. Office of Scientific and Technical Information (OSTI), 2018. http://dx.doi.org/10.2172/1487152.

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Katipamula, Srinivas, Peter Armstrong, Weimin Wang, et al. Development of High-Efficiency Low-Lift Vapor Compression System - Final Report. Office of Scientific and Technical Information (OSTI), 2010. http://dx.doi.org/10.2172/976987.

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Williams, J., M. Aarnio, A. Grosvenor, D. Taylor, and J. Bucher. High Efficiency Low Cost CO2 Compression Using Supersonic Shock Wave Technology. Office of Scientific and Technical Information (OSTI), 2010. http://dx.doi.org/10.2172/1011244.

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