Academic literature on the topic 'LabVIEW R'
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Journal articles on the topic "LabVIEW R"
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Sun, Jun, and Hai Zhe Liu. "Two Balanced Car LQR Algorithm Achieved Based on LabVIEW." Applied Mechanics and Materials 127 (October 2011): 592–97. http://dx.doi.org/10.4028/www.scientific.net/amm.127.592.
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Constructed of high-order, multi-variable mathematical model of two balanced car, and using LQR algorithm relies on the powerful LabVIEW Control Toolkit, through continuously adjust the weighting matrix Q and R, designed the optimal secondary controller,it is better to balance the system robust stability and reaction fast, and by drawing out of the system output response curve, verify the correctness and the effectiveness of the controller.
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Wang, Yong Ning. "LabVIEW-Based Design of Virtual Instruments and R&G of Virtual Experimental System." Applied Mechanics and Materials 513-517 (February 2014): 1756–59. http://dx.doi.org/10.4028/www.scientific.net/amm.513-517.1756.
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With the popularization of network technology, the computer technology is developing rapidly coupled with the emergence of virtual instrument technology. In this context, virtual experiment, an effective complement to the development of the traditional experimental method, has very broad spectrum of application in the field of education, measurement, and even other research areas. Thus, virtual experiment has become an important future development of experimental teaching. Based on analysis of the history and current status of the existing virtual laboratory at home and abroad, as well as the technologies used to accomplish a virtual experiment, this thesis makes a comprehensive study to analyze the construction of the virtual experiment system, including the basic theory of its establishment, the network environment, application classification, the specific tectonic model and technical methods and its development and applications.
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Ali, S., S. Mahmood, I. Orban, et al. "Photo-recombination studies at R-EBIT with a Labview control and data acquisition system." Journal of Instrumentation 6, no. 01 (2011): C01016. http://dx.doi.org/10.1088/1748-0221/6/01/c01016.
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Dezső, Dávid, Gyula Győri, and Géza Husi. "Development of ECG measurement and processing system in LabVIEW environment." International Review of Applied Sciences and Engineering 12, no. 1 (2021): 76–85. http://dx.doi.org/10.1556/1848.2020.00152.
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Abstract In this project an ECG measurement and wave identification system was made. The measuring system hardware is based on a Texas Instruments ADS1298ECG amplifier and analog-to-digital converter board. The measurement and processing software was created in LabVIEW environment using the built-in functions of the Biomedical toolkit. Initially, the theory behind heartbeat and its effect on the skin surface potential are presented. Then the measurement techniques of these are described. The research group provide information on the mathematical background of how the ECG curve is processed and the waves are identified. The HRV analysis, the statistical analysis of identified R waves are described. Subsequently, publications dealing with electrocardiographic examinations in various fields will be presented. Then an overview of the specifications of the amplifiers used in this work and the capabilities of their original software are given. The final device structure is presented. The system validation process and the properties of the reference devices are illustrated.
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Xia, Kai, Min Yang, and Li Liu. "Study on Internal and External Parameters’ Calibration of Camera Based on Hyperchaos Least Square Method." Advanced Materials Research 889-890 (February 2014): 1038–41. http://dx.doi.org/10.4028/www.scientific.net/amr.889-890.1038.
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To Solve how to Calibrate Rapidly and Accurately in Camera, it Proposed the Method of Hyperchaos Least Square and Implemented by Labview through Analyzing the Camera Model and the Calibration Principle. it is that Measuring Image Coordinate and World Coordinate, then Calculating the Important Camera Internal and External Parameters which are R Rotation Matrix and T Translation Matrix Solutions Based on Hyperchaos Least Square Method.
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Sabar, Sabar, Dewi Maulidah Nur Anjani, and Sastra Kusuma Wijaya. "Water Level Detection System based on Arduino and LabVIEW for Flood Monitors using Virtual Instrumentation." Al-Fiziya: Journal of Materials Science, Geophysics, Instrumentation and Theoretical Physics 4, no. 1 (2021): 29–35. http://dx.doi.org/10.15408/fiziya.v4i1.19808.
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This virtual instrumentation system based on Arduino and LabVIEW aims to detect the water level using a water level sensor. The water level sensor used to measure the water level is the Funduino type. This sensor and the buzzer module are connected to the Arduino Uno to transmit data to LabVIEW. When the water has reached a certain height, this sensor will detect the water level. When the water has reached the set point, this sensor will sound a buzzer as a sign that the water is full. Based on the experimental results, it is found that the tension value affects the volume of the experiment site. Where the greater the volume used will produce a large voltage, and vice versa. Furthermore, the graph results obtained that are still away from the linearity of a regression function with a value of y = 0.0079x + 1.8561 and R² = 0.4298.
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Magrupova, M. T., and Yo T. Talatov. "Systematic Approach to Processing and Analysis Diagnostic Indicators of Electrocardiograms Based on Labview." Journal of the Russian Universities. Radioelectronics 23, no. 2 (2020): 82–88. http://dx.doi.org/10.32603/1993-8985-2020-23-2-82-88.
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Introduction. Cardiovascular disease occupies an important place throughout the world, which necessitates the development of more effective modern means of diagnosis and treatment. The primary diagnosis of heart disease is based on analysis and processing of an electrocardiogram (ECG). Despite the fact that there are many methods and algorithms for ECG analysis and processing, one of the urgent problems of cardiology remains to obtain the most complete information about heart electric potential, respectively, the behavior of the waves P, Q, R, S and T.Aim. Development of algorithms and software for processing and analysis of electrocardiograms (ECGs), as well as calculation of heart rate and detection of arrhythmias based on Labview.Materials and methods. The methods for removing noise using the wavelet transform method to eliminate baseline deviation ,to extract ECG signs ,to calculate heart rate and to detect arrhythmias based on Labview have been adopted as a mathematical apparatus for processing and analyzing ECGs.Results. Organizing of the ECG database, developing algorithms for converting the ECG file of the database into a useful format for Labview, processing of the ECG signal with removing noise from the original ECG signal, extracting signs for obtaining ECG diagnostic indicators, calculating heart rate and detecting arrhythmias.Conclusion. An analysis of the results demonstrates that systematic approaches to evaluating ECG signals allow to avoid one-way decisions and to integrate different methods into an integrated system of ideas of the state. The implementation of the proposed algorithms using Labview programming system ensures the removal of noise and artifacts, the extraction of the necessary ECG signs, the calculation of heart contractions and the detection of arrhythmias.
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Lin, Sheam Chyun, Fu Sheng Chuang, and Harki Apri Yanto. "Establishment of a Removable Experiment Platform for VAWT." Applied Mechanics and Materials 284-287 (January 2013): 1046–50. http://dx.doi.org/10.4028/www.scientific.net/amm.284-287.1046.
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This investigation intends to establish an experimental test platform for a small vertical-axis wind turbine (VAWT), which is installed on the rooftop of a building. The experiment platform designed here is flexible and suitable for executing the systematic performance evaluation on different types of VAWT. By utilizing the data acquisition system (DAQ), all environmental information and power data from sensors and generator on the platform are recorded and transferred to the computer automatically. Later, these analogy signals are transformed to digital format for transmitting into computer. Also, with the aids of a visual software programming within the framework of Labview, the real-time monitoring on the input/output parameters of generator and wind condition on the rooftop can be accomplished simultaneously. Afterwards, the data processing and in-depth analysis on the experimental outcomes are carried out via the established computer program. Consequently, the on-site performance of the wind turbine generator system is attained in an automatic and systematic manner. Moreover, to ensure for providing sufficient data and its accuracy, statistic concept is enforced to judge whether the test data are qualified or not in the data-processing procedure. In summary, together with the data-acquisition software programmed under the framework of Labview, this experimental system can provide the capability for monitoring, recording, and filtering these test data in an rigor manner, and is appropriate for executing the R&D and performance evaluation on different VAWTs.
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He, Zhong Hai, Yi Hao Du, and Zhao Xia Wu. "Generation of Respiratory Flow Having Fractal Signal Feature." Advanced Materials Research 366 (October 2011): 211–14. http://dx.doi.org/10.4028/www.scientific.net/amr.366.211.
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In this paper how to generate respiratory flow that has fractal signal feature is introduced. Physiological signal have fractal feature have been verified by many researchers, such as heart beat rate, interbreath interval. Mechanical ventilators are used to provide life support for patients with respiratory failure. But these machines can damage the lung, causing them to collapse. On the other hand, fractal feature can be used as an indication of health situation; as a result in patient simulation the physiological signal should also have fractal features. The fractal feature is generated by fractional Brownian motion simulation. The fractal dimension is decided by Hurst exponent in routine. The algorithm is realized by R language and result is input into LabVIEW which have friendly interface and easy for simulation control usage. The method can be used in design of mechanical ventilator and medical patient simulator.
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Mohammed, Ahmed Abd, and Raed Ayad Abduljabbar. "Experimental Study of Hybrid Solar Air Conditioning System in Iraq." Journal of Engineering 24, no. 10 (2018): 32. http://dx.doi.org/10.31026/j.eng.2018.10.03.
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In this paper, an experimental study of the thermal performance for hybrid solar air conditioning system was carried out, to investigate system suitability for the hot climate in Iraq. The system consists of vapor compression unit combined with evacuated tube solar collector and liquid storage tank. A three-way valve was installed after the compressor to control the direction flow of the refrigerant, either to the storage tank or directly to the condenser. The performance parameters were collected by data logger to display and record in the computer by using LabVIEW software. The results show that the average coefficient of performance of hybrid solar air conditioning system (R=1) was about 2.42 to 2.77 and the average power consumption was about 1.1 to 1.12 kW when the ambient temperature was about 34.2 to 39.7 ˚C, while the average coefficient of performance of conventional system (R=0) was about 3.23 and the average power consumption was about 1 kW when the ambient temperature was about 30.8 to 34.3 ˚C. It can be concluded that the use of the hybrid solar system in Iraq with its current form could not be saved electricity.
Dissertations / Theses on the topic "LabVIEW R"
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SILVA, Fabiano Gabriel da. "Medição de Impedância Para Monitoramento da Vazão Multifásica Pela Técnica da Correlação." Universidade Federal de Pernambuco, 2012. https://repositorio.ufpe.br/handle/123456789/11145.
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Previous issue date: 2012-02-29<br>Foi desenvolvido um medidor de impedância elétrica utilizando a técnica
de detec ção sí ncrona (lock-in). Essa técnica utiliza um sinal de referência
para detectar sinais elétricos na presença de ní veis altos de ruí do, sendo utilizada
para medir potenciais elétricos ou correntes elétricas extremamente
baixas. Isso ocorre quando se deseja medir condutâncias ou capacitâncias
muito pequenas ou muito grandes. Para testar o conceito, o medidor foi
implementado e caracterizado utilizando a técnica de instrumenta ção virtual
com o aplicativo LabVIEW R. Foram realizadas medi ções experimentais e
caracteriza ção do medidor com resistências e capacitâncias padrão. O objetivo
do projeto e utilizar esse instrumento na implementa ção de um medidor
de vazão multifásica pela técnica da correla ção. Diversas técnicas podem ser
usadas para realizar a medi ção da vazão. Contudo, de acordo o ambiente e
o tipo de ruído a ser medido, algumas são mais e cientes que outras. Isso acaba influenciando na contabilidade da medição. Escoamentos multifásicos
são os que possuem a maior dificuldade de medição por serem compostos
por mais de um tipo de ruído (água, óleo, ar etc). A medi cão de vazão está
presente em nosso dia a dia na produção e distribuição de petróleo, postos de
combustíveis, nas empresas abastecedoras de água e tratamento de esgotos,
nas indústrias de bebida, entre outros. Ela e fundamental para o controle de
processos e para tarifação. A exemplo da medição fiscal, para arrecadação
de impostos.
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Polito, Martina. "USB monitor in LabVIEW per il controllo remoto delle schede DAQ del pixel detector di ATLAS." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2015. http://amslaurea.unibo.it/8925/.
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L’esperimento ATLAS al CERN di Ginevra ha un complesso sistema di rivelatori che permettono l’acquisizione e il salvataggio di dati generati dalle collisioni di particelle fondamentali. Il rivelatore per cui trova una naturale applicazione il lavoro di questa tesi è il Pixel Detector. Esso è il più vicino alla beam pipe e si compone di più strati, il più interno dei quali, l’Insertable B-Layer (IBL), aggiunto in seguito allo shut down dell’LHC avvenuto nel 2013, ha apportato diverse innovazioni per migliorare la risoluzione spaziale delle tracce e la velocità di acquisizione dei dati. E’ stato infatti necessario modificare il sistema di acquisizione dati dell’esperimento aggiungendo nuove schede chiamate ROD, ReadOut Driver, e BOC, Back Of Crate. Entrambe le due tipologie di schede sono montate su un apparato di supporto, chiamato Crate, che le gestisce. E’ evidente che avere un sistema remoto che possa mostrare in ogni momento il regime di funzionamento del crate e che dia la possibilità di pilotarlo anche a distanza risulta estremamente utile. Così, tramite il linguaggio di programmazione LabVIEW è stato possibile progettare un sistema multipiattaforma che permette di comunicare con il crate in modo da impostare e ricevere svariati parametri di controllo del sistema di acquisizione dati, come ad esempio la temperatura, la velocità delle ventole di raffreddamento e le correnti assorbite dalle varie tensioni di alimentazione. Al momento il software viene utilizzato all’interno dell’Istituto Nazionale di Fisica Nucleare (INFN) di Bologna dove è montato un crate W-Ie-Ne-R, speculare a quello presente al CERN di Ginevra, contenente delle schede ROD e BOC in fase di test. Il progetto ed il programma sviluppato e presentato in questa tesi ha ulteriori possibilità di miglioramento e di utilizzo, dal momento che anche per altri esperimenti dell’LHC le schede di acquisizione vengono montate sullo stesso modello di crate.
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Csekes, Attila. "Řízený kardiostimulátor." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2010. http://www.nusl.cz/ntk/nusl-218667.
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The Thesis deals with the area of cardio stimulation. It describes the different stimulation modes and their specifics. It describes the creation of a virtual cardio stimulator based on R-waves, designed in the LabVIEW application. Part of the thesis is the software realization of the model and the verification of its functionality.
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Veselý, Petr. "Zpracování experimentálních dat v reálném čase." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2011. http://www.nusl.cz/ntk/nusl-219199.
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The thesis completes the current programming equipment for experimental measurement of isolated animal heart signals. It adds a block providing the pre-processing of the signals. The signals measured are the elektrogram (EG) and the action potential (AP). The origin of individual signals, the measuring method and the possibilities of noise elimination are dealt with in the theoretical part of the thesis. The practical part describes the pre-processing block securing the noise elimination during the AP. It uses accumulative methods of averaging the corresponding time periods of the AP. Based on the results of measuring the signal to noise ratio, the thesis suggests the most appropriate accumulative methods and their variables. In order for the chosen accumulative methods to work well, it is important to divide the AP process into sectors of corresponding shape (repeats). The connection between the EG and AP processes is used to determine the beginning and end of the sectors. These points are identified by the detection of R and T wave peaks in the EG. To detect the R and T waves, the thesis uses methods based on wavelet transform. The efficiency and accuracy of detection methods is verified by test EG signals with hand-marked R and T wave peaks.
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Καραγεωργόπουλος, Δημήτριος. "Σχεδιασμός συστήματος και εργαλείων με σκοπό την ανάπτυξη customized GUis για τον απομακρυσμένο DSP εφαρμογών". Thesis, 2010. http://nemertes.lis.upatras.gr/jspui/handle/10889/4205.
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Σκοπός της παρούσας διπλωματικής εργασίας είναι η δημιουργία συστήματος που θα διευρύνει τις δυνατότητες των εξ’ αποστάσεως εργαστηρίων προσανατολισμένα σε θέματα ψηφιακής επεξεργασίας σήματος και εικόνας. Η υλοποίηση πραγματοποιήθηκε με το LabVIEW v 8.6 και ονομάστηκε R-DSP Server. Αξιοποιώντας τις δυνατότητες που προσφέρει ο R-DSP Server οι χρήστες μπορούν να αναπτύξουν τα δικά τους γραφικά περιβάλλοντα (Graphical User Interfaces -GUIs) τα οποία ονομάζονται προσαρμοζόμενα γραφικά περιβάλλοντα (Customized GUIs,) για τον απομακρυσμένο έλεγχο DSP εφαρμογών. Για την εύκολη και γρήγορη ανάπτυξη τέτοιων γραφικών εφαρμογών στο περιβάλλων του LabVIEW, αναπτύχθηκε μια σειρά εργαλείων που ονομάστηκε R-DSP LabVIEW Toolkit. Η εργασία ολοκληρώνεται με την παρουσίαση της λειτουργιάς του R-DSP Server αλλά και της χρήσης του R-DSP Toolkit.<br>The purpose of this work is to present an approach which could expand the features of Remote Laboratories focused on embedded Digital Signal Processing (DSP) systems. The proposed approach is based on a system which is designed and developed with LabVIEW and is called R-DSP Server. Exploiting this system, users are able to develop their own Graphical User Interfaces (GUIs), named Customized GUIs, for the remote control and validation of real-time DSP applications. These GUIs are tailored to the needs of each DSP application and can be implemented in any programming language. The rapid design of Customized GUIs using LabVIEW for the communication with the R-DSP Server is achieved using an implemented set of functions, called R-DSP LabVIEW Toolkit.
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Chowdhury, Usman. "A cooler Penning trap to cool highly charged radioactive ions and mass measurement of 24Al." 2016. http://hdl.handle.net/1993/31511.
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Penning trap mass spectrometry (PTMS) can be used to test the Standard Model (SM) and to answer the questions related to the origin and abundance of the elements in the universe. There are several facilities worldwide specialized in PTMS and some of them can measure the masses of isotopes with half-lives in the range of milliseconds. TRIUMF’s ion trap for atomic and nuclear science (TITAN) is one such facility. In mass measurement the precision is linearly proportional to the charge state of the ion of interest. To increase the charge state, ions are charge-bred using an electron beam ion trap (EBIT) at TITAN. However, the charge breeding process introduces an energy spread among the ions which adversely affects the precision of the mass measurement. To overcome this problem a cooler Penning trap (CPET) was designed, assembled and is now being tested off-line. This thesis presents the first systematic test results of CPET. We also present the result of the first Penning trap mass measurement of the isotope 24Al, which is five times more precise than the previous atomic mass evaluation (AME2012) value. The precise and accurate mass of 24Al is important for both astrophysics and for test of the standard model (SM). The resonance energy (E_r) calculated for the 23Mg(p,gamma)24Al reaction using the ground state mass of 24Al reported in this thesis shows a 2s deviation from the direct measurement. On the other hand, tests of the SM by evaluating f_t values using isospin T = 1 nuclides have reached a high precision level. Effort is now shifting towards the T = 2 nuclides, which are far from stability compared to their T = 1 counterparts. For this reason, the ground state masses of T = 2 nuclides and of their decay products are required to be known with high precision. 24Al is the daughter of one such nucleus, 24Si. The ground state mass of 24Al reported in this thesis will be useful to test the SM.<br>October 2016
Conference papers on the topic "LabVIEW R"
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Huang, Danfei, Xiaofeng Zhang, Huilin Jiang, and Guozhong Xu. "Research on ECG R-Wave Detection Algorithm Based on LabVIEW." In 2009 2nd International Conference on Biomedical Engineering and Informatics. IEEE, 2009. http://dx.doi.org/10.1109/bmei.2009.5305152.
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Sharma, Nimish, Danda B. Rawat, Bhed B. Bista, and Sachin Shetty. "A Testbed Using USRP(TM) and LabView(R) for Dynamic Spectrum Access in Cognitive Radio Networks." In 2015 IEEE 29th International Conference on Advanced Information Networking and Applications (AINA). IEEE, 2015. http://dx.doi.org/10.1109/aina.2015.261.
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Lin, Sheam-Chyun, Harki Apri Yanto, Chao-Chang Chen, Yen-Wen Chen, and Shih-Yu Wang. "Establishment and Safety Evaluation of a Removable Experiment Platform for VAWT." In ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis. ASMEDC, 2010. http://dx.doi.org/10.1115/esda2010-24349.
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This investigation intends to establish an experimental test platform for a small vertical-axis wind turbine (VAWT), which is installed on the rooftop of a building. The experiment platform designed here is flexible and suitable for executing the systematic performance evaluation on different types of VAWT. By utilizing the data acquisition system (DAQ), all environmental information and power data from sensors and generator on the platform are recorded and transferred to the computer automatically. Later, these analogy signals are transformed to digital format for transmitting into computer. Also, with the aids of a visual software programming within the framework of Labview, the real-time monitoring on the input/output parameters of generator and the wind condition on the rooftop can be accomplished simultaneously. Afterwards, the data processing and in-depth analysis on the experimental outcomes are carried out via the established computer program. Consequently, the on-site performance of the wind turbine generator system is attained in an automatic and systematic manner. Moreover, to ensure for providing sufficient data and its accuracy, statistic concept is enforced to judge whether the test data are qualified or not in the data-processing procedure. Regarding the safety evaluation on this test platform, the numerical models of the wind turbine and platform are analyzed numerically via ANSYS Workbench to obtain the force exerting on the main shaft and blades. This force distribution can be analyzed for checking if they can stand and meet the safety criterion under various wind speeds. In summary, together with the data-acquisition software programmed under the framework of Labview, this experimental system can provide the capability for monitoring, recording, and filtering these test data in an rigor manner, and is appropriate for executing the R&D and performance evaluation on different VAWTs.
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Rahai, Hamid R., Huy T. Hoang, Jeremy Bonifacio, and Raymond H. Horstman. "Subsonic Venturi Interaction With Free-Stream Flow." In ASME 2009 Fluids Engineering Division Summer Meeting. ASMEDC, 2009. http://dx.doi.org/10.1115/fedsm2009-78225.
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Numerical and experimental investigations of a venturi flow into a cross flow have been performed. The numerical analyses were performed using the CD-Adapco CCM+ commercial software with non-uniform mesh and the standard k-ε turbulence model. The analyses were performed for the venturi outlet directly connected to the bottom surface of the wind tunnel and for the venturi connected to the wind tunnel bottom surface with a 15.24 cm long tube extension of the same diameter. The experimental investigations were carried out in a subsonic open-circuit wind tunnel facility of the Center for Energy and Environmental Research and Services (CEERS) in conjunction with a single hot wire sensor and a LabView-National Instrument data acquisition system. For the experimental investigations, the venturi was connected to the bottom surface of the wind tunnel without the extension tube. For the numerical investigations, the ratios of the venturi flow momentum to the cross flow momentum, r, were 0.25, 0.5, 0.75, and 1.0. For the experimental investigations, the momentum ratios were 0.5, 0.85, and 1.0. For all analyses, isothermal condition is assumed. Results indicate when r = 0.25 and 0.5, the venturi flow is confined to an area near the wind tunnel surface with high static pressure within the venturi and the extension tube. However, for momentum ratios higher than 0.5, the venturi flow penetrates into the cross flow, before being tilted into the cross flow. For high r values, there is a counter-rotating vortex pair which grows in downstream direction. The adverse pressure gradient upstream of the venturi flow affects the flow characteristics inside the venturi at low momentum ratios. However, there were no indications of flow separation or flow recirculation within the venturi or the extension tube.
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Brooks, M. J., L. C. Nortje, W. E. Lear, and S. A. Sherif. "Parametric Control of a Two-Phase Thermal Management System for Space Applications." In ASME 2008 Heat Transfer Summer Conference collocated with the Fluids Engineering, Energy Sustainability, and 3rd Energy Nanotechnology Conferences. ASMEDC, 2008. http://dx.doi.org/10.1115/ht2008-56147.
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As spacecraft increase in complexity, greater power is required to drive their onboard systems. The resulting generation of waste heat demands efficient thermal control, especially for electrical components emitting heat at high flux densities. Weislogel proposed a passive two-phase heat transport system for space application, driven by constant volume boilers, called the pulse thermal loop (PTL). This paper describes four methods of operating a PTL using real-time pressure data as the control parameter. Preliminary results are presented from an experimental loop using R-134a as the working fluid. Control is exercised through algorithm-based schemes implemented in LabVIEW. Results suggest that stable operation of the loop is best achieved by actuating flow control valves in response to a preset pressure difference between the boilers. Control schemes based on absolute pressure, set pulse frequency, and a combination of absolute and differential pressures are also described. Performance data are presented, and some of the challenges faced during PTL operation are discussed, including start-up and asymmetrical pressurization of the boilers.
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Attia, Amr, and Ahmed Emara. "Influence of Gas Diluents on the Temperature of a Laminar Coflowing Jet Diffusion Flame in a Honeycomb Gaseous Burner." In ASME 2015 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/imece2015-53597.
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A series of experiments were performed on a flat honeycomb burner with air coflow to ensure laminar flow in order to study the effect of Acetylene/Argon mixture to the natural gas (NG) on the temperature distribution and flame structure. The burner assembly could be traversed in the horizontal and vertical direction controlled by using a field point system to scan the flame radially and axially. The flow rate of fuel, diluents and air was measured using differential pressure flow meters. The whole supply lines were calibrated. Methane gas, air and Acetylene/Argon mixture were injected through mixing pipes controlled with solenoid valves handled with a LabVIEW program. The combustion flame was in room atmospheric conditions with room disturbances controlled to treat such flames as free jet diffusion flames. The laminar flame axial and radial temperature profile was measured using a shielded-aspirated platinum/ Platinum-13% Rhodium thermocouple (type R). Flame images were taken using Canon EOS camera with CMOS sensor, up to 3.7 fps. The fuel used was NG with flow rate from 180 up to 520 ml/min. Ar flow rate up to 350 ml/min and C2H2 up to 100 ml/min with a constant coflow air of 3 l/min. The choice of the different Investigated cases was based on flame stability. The results obtained indicate the following: – In case of using air, NG and Ar, the fuel rich zone tends to vanish and in case of injecting Ar and acetylene mixture in addition of NG and air the front zone tends to vanish and the flame became mainly diffusion. – Maximum temperature was at the flame tip in all cases. Increasing Ar percentage up to 50% decreases tip temperature to nearly 870°C compared to the typical case (about 1000 °C); increasing acetylene content over 15% resulted in dense soot formation.