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Добірка наукової літератури з теми "THERMODYNAMICS PERFORMANCE"

Автор: Grafiati
Опубліковано: 11 вересня 2023

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Статті в журналах з теми "THERMODYNAMICS PERFORMANCE"

1

Mitrovic, Dejan, Marko Ignjatovic, Branislav Stojanovic, Jelena Janevski, and Mirko Stojiljkovic. "Comparative exergetic performance analysis for certain thermal power plants in Serbia." Thermal Science 20, suppl. 5 (2016): 1259–69. http://dx.doi.org/10.2298/tsci16s5259m.

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Traditional methods of analysis and calculation of complex thermal systems are based on the first law of thermodynamics. These methods use energy balance for a system. In general, energy balances do not provide any information about internal losses. In contrast, the second law of thermodynamics introduces the concept of exergy, which is useful in the analysis of thermal systems. Exergy is a measure for assessing the quality of energy, and allows one to determine the location, cause, and real size of losses incurred as well as residues in a thermal process. The purpose of this study is to comparatively analyze the performance of four thermal power plants from the energetic and exergetic viewpoint. Thermodynamic models of the plants are developed based on the first and second law of thermodynamics. The primary objectives of this paper are to analyze the system components separately and to identify and quantify the sites having largest energy and exergy losses. Finally, by means of these analyses, the main sources of thermodynamic inefficiencies as well as a reasonable comparison of each plant to others are identified and discussed. As a result, the outcomes of this study can provide a basis for the improvement of plant performance for the considered thermal power plants.
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2

Ng, K. C., T. Y. Bong, and H. T. Chua. "Performance Evaluation of Centrifugal Chillers in an Air-Conditioning Plant with The Building Automation System (BAS)." Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy 208, no. 4 (November 1994): 249–55. http://dx.doi.org/10.1243/pime_proc_1994_208_045_02.

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A thermodynamic model with a novel method of describing the performances of centrifugal chillers for air-conditioning is presented. It is based on the first and second laws of thermodynamics which captures the overall entropy change due to non-isentropic compression and expansion of the thermodynamic cycle. The model gives the fundamental relation between the coefficient of performance (COP) and the cooling rates (Qe) for (a) the modulating and (b) the throttling actions of the inlet guide-vanes of the compressor. The usefulness and the accuracy of the model are demonstrated here by analysing the in situ performance of two commercial, installed centrifugal chillers of an air-conditioning plant as well as comparing the available performance data of another chiller in the literature.
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3

Bejan, Adrian, and George Tsatsaronis. "Purpose in Thermodynamics." Energies 14, no. 2 (January 13, 2021): 408. http://dx.doi.org/10.3390/en14020408.

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This is a review of the concepts of purpose, direction, and objective in the discipline of thermodynamics, which is a pillar of physics, natural sciences, life science, and engineering science. Reviewed is the relentless evolution of this discipline toward accounting for evolutionary design with direction, and for establishing the concept of purpose in methodologies of modeling, analysis, teaching, and design optimization. Evolution is change after change toward flow access, with direction in time, and purpose. Evolution does not have an ‘end’. In thermodynamics, purpose is already the defining feature of methods that have emerged to guide and facilitate the generation, distribution, and use of motive power, heating, and cooling: thermodynamic optimization, exergy-based methods (i.e., exergetic, exergoeconomic, and exergoenvironmental analysis), entropy generation minimization, extended exergy, environomics, thermoecology, finite time thermodynamics, pinch analysis, animal design, geophysical flow design, and constructal law. What distinguishes these approaches are the purpose and the performance evaluation used in each method.
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4

He, Rong, Xinli Wei, and Nasruddin Hassan. "Multi-objective performance optimization of ORC cycle based on improved ant colony algorithm." Open Physics 17, no. 1 (March 28, 2019): 48–59. http://dx.doi.org/10.1515/phys-2019-0006.

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Abstract To solve the problem of multi-objective performance optimization based on ant colony algorithm, a multi-objective performance optimization method of ORC cycle based on an improved ant colony algorithm is proposed. Through the analysis of the ORC cycle system, the thermodynamic model of the ORC system is constructed. Based on the first law of thermodynamics and the second law of thermodynamics, the ORC system evaluation model is established in a MATLAB environment. The sensitivity analysis of the system is carried out by using the system performance evaluation index, and the optimal working parameter combination is obtained. The ant colony algorithm is used to optimize the performance of the ORC system and obtain the optimal solution. Experimental results show that the proposed multi-objective performance optimization method based on the ant colony algorithm for the ORC cycle needs a shorter optimization time and has a higher optimization efficiency.
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5

HE, JI-ZHOU, XIAN HE, and JIE ZHENG. "THERMAL ENTANGLED QUANTUM REFRIGERATOR WORKING WITH THE TWO-QUBIT HEISENBERG XX MODEL." International Journal of Modern Physics B 26, no. 11 (April 30, 2012): 1250086. http://dx.doi.org/10.1142/s0217979212500865.

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An entangled quantum refrigerator working with a two-qubit Heisenberg XX model in a constant external magnetic field is constructed in this paper. Based on the quantum first law of thermodynamics, the expressions for several basic thermodynamic quantities such as the heat transferred, the net work and the coefficient of performance are derived. Moreover, the influence of the thermal entanglement on the basic thermodynamic quantities is investigated. Several interesting features of the variation of the basic thermodynamic quantities with the thermal entanglement in zero and nonzero magnetic field are obtained. Lastly, we analyze the maximum coefficient of performance.
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6

Vischi, Francesco, Matteo Carrega, Alessandro Braggio, Pauli Virtanen, and Francesco Giazotto. "Thermodynamics of a Phase-Driven Proximity Josephson Junction." Entropy 21, no. 10 (October 15, 2019): 1005. http://dx.doi.org/10.3390/e21101005.

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We study the thermodynamic properties of a superconductor/normal metal/superconductor Josephson junction in the short limit. Owing to the proximity effect, such a junction constitutes a thermodynamic system where phase difference, supercurrent, temperature and entropy are thermodynamical variables connected by equations of state. These allow conceiving quasi-static processes that we characterize in terms of heat and work exchanged. Finally, we combine such processes to construct a Josephson-based Otto and Stirling cycles. We study the related performance in both engine and refrigerator operating mode.
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7

Alghamdi, Mohammed, Ibrahim Al-Kharsan, Sana Shahab, Abdullah Albaker, Reza Alayi, Laveet Kumar, and Mamdouh El Haj Assad. "Investigation of Energy and Exergy of Geothermal Organic Rankine Cycle." Energies 16, no. 5 (February 25, 2023): 2222. http://dx.doi.org/10.3390/en16052222.

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In this study, modeling and thermodynamic analysis of the combined double flash geothermal cycle generation was conducted using zeotropic fluid as the working fluid in the Organic Rankine Cycle (ORC). The analysis was performed based on the first and second laws of thermodynamics. Hexane, cyclohexane, isohexane, R245fa, and R236ea exhibit good performance at higher temperatures. In this study, three fluids—hexane, cyclohexane, and isohexane—were used. First, the model results for the pure fluids were compared with those of previous studies. Then, the important parameters of the cycle, including the efficiency of the first law of thermodynamics, the efficiency of the second law of thermodynamics, net productive power, and the amount of exergy destruction caused by changing the mass fraction of the refrigerant for the zeotropic fluids (investigated for the whole cycle and ORC), were obtained and compared.
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8

Chen, Pengfan, Ying Wang, Wenhao Ding, Yafeng Niu, Zibo Lin, and Yingwen Liu. "Performance analysis of free piston Stirling engine based on the phasor notation method." E3S Web of Conferences 313 (2021): 02004. http://dx.doi.org/10.1051/e3sconf/202131302004.

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The free piston Stirling engine (FPSE) is a couple system of dynamics and thermodynamics. Due to the complicated and interactive relationships between the dynamic parameters and thermodynamic parameters, the performance of the FPSE is always difficult to predict and evaluate. The phasor notation method is proposed based on a thermodynamic-dynamic coupled model of a beta-type FPSE in this paper. The output power and efficiency under the different heating temperature and charging pressure are analysed and compared. In addition, based on the Sage numerical model, the influences of heating temperature and charging pressure on the pistons’ displacement amplitudes, power work and efficiency are revealed. This study can provide the assistance for the performance analysis, prediction and optimization of the FPSE.
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9

Fu, Jiawei, Zhenhua Liu, Xingyang Yang, Sumin Jin, and Jilei Ye. "Limiting Performance of the Ejector Refrigeration Cycle with Pure Working Fluids." Entropy 25, no. 2 (January 24, 2023): 223. http://dx.doi.org/10.3390/e25020223.

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An ejector refrigeration system is a promising heat-driven refrigeration technology for energy consumption. The ideal cycle of an ejector refrigeration cycle (ERC) is a compound cycle with an inverse Carnot cycle driven by a Carnot cycle. The coefficient of performance (COP) of this ideal cycle represents the theoretical upper bound of ERC, and it does not contain any information about the properties of working fluids, which is a key cause of the large energy efficiency gap between the actual cycle and the ideal cycle. In this paper, the limiting COP and thermodynamics perfection of subcritical ERC is derived to evaluate the ERC efficiency limit under the constraint of pure working fluids. 15 pure fluids are employed to demonstrate the effects of working fluids on limiting COP and limiting thermodynamics perfection. The limiting COP is expressed as the function of the working fluid thermophysical parameters and the operating temperatures. The thermophysical parameters are the specific entropy increase in the generating process and the slope of the saturated liquid, and the limiting COP increases with these two parameters. The result shows R152a, R141b, and R123 have the best performance, and the limiting thermodynamic perfections at the referenced state are 86.8%, 84.90%, and 83.67%, respectively.
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10

Asnaghi, A., S. M. Ladjevardi, P. Saleh Izadkhast, and A. H. Kashani. "Thermodynamics Performance Analysis of Solar Stirling Engines." ISRN Renewable Energy 2012 (July 5, 2012): 1–14. http://dx.doi.org/10.5402/2012/321923.

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This paper provides numerical simulation and thermodynamic analysis of SOLO 161 Solar Stirling engine. Some imperfect working conditions, pistons' dead volumes, and work losses are considered in the simulation process. Considering an imperfect regeneration, an isothermal model is developed to calculate heat transfer. Hot and cold pistons dead volumes are accounted in the work diagram calculations. Regenerator effectiveness, heater and cooler temperatures, working gas, phase difference, average engine pressure, and dead volumes are considered as effective parameters. By variations in the effective parameters, Stirling engine performance is estimated. Results of this study indicate that the increase in the heater and cooler temperature difference and the decrease in the dead volumes will lead to an increase in thermal efficiency. Moreover, net work has its maximum value when the angle between two pistons shaft equal to 90 degrees while efficiency is maximum in 110 degrees.
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Дисертації з теми "THERMODYNAMICS PERFORMANCE"

1

Glober, S. "Flow and heat transfer inside enhanced performance tubes." Thesis, University of Brighton, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.373908.

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2

Achaichia, A. "The performance of louvred tube-and-fin heat transfer surfaces." Thesis, University of Brighton, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.375665.

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3

Yu, Lap Chi Alfred. "Performance characteristics of round tube and plate fin heat transfer surfaces." Thesis, University of Brighton, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.294103.

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4

Colson, John T. Jr. "Thermoeconomic evaluation of feedwater heater shell side performance." Thesis, Georgia Institute of Technology, 1986. http://hdl.handle.net/1853/17942.

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5

Al-Jandal, Sa'ad Salem A. "A study of the thermal performance characteristics applied to solar tube collector (STC) with phase change storage." Thesis, University of Reading, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.363496.

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6

Walters, Joseph D. "Optimization and Thermodynamic Performance Measures of a Class of Finite Time Thermodynamic Cycles." PDXScholar, 1990. https://pdxscholar.library.pdx.edu/open_access_etds/1186.

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Modifications to the quasistatic Carnot cycle are developed in order to formulate improved theoretical bounds on the thermal efficiency of certain refrigeration cycles that produce finite cooling power. The modified refrigeration cycle is based on the idealized endoreversible finite time cycle. Two of the four cycle branches are reversible adiabats, and the other two are the high and low temperature branches along which finite heat fluxes couple the refrigeration cycle with external heat reservoirs. This finite time model has been used to obtain the following results: First, the performance of a finite time Carnot refrigeration cycle (FTCRC) is examined. In the special case of equal heat transfer coefficients along heat transfer branches, it is found that by optimizing the FTCRC to maximize thermal efficiency and then evaluating the efficiency at peak cooling power, a new bound on the thermal efficiency of certain refrigeration cycles is given by $\epsilon\sb{m} = (\tilde\tau\sp2\sb{m}\ (T\sb{H}/T\sb{L}) - 1)\sp{-1},$ where $T\sb{H}$ and $T\sb{L}$ are the absolute high and low temperatures of the heat reservoirs, respectively, and $\tilde\tau\sb{m}=\sqrt{2}$ + 1 $\simeq$ 2.41 is the dimensionless cycle period at maximum cooling power. Second, a finite time refrigeration cycle (FTRC) is optimized to obtain four distinct optimal cycling modes that maximize efficiency and cooling power, and minimize power consumption and irreversible entropy production. It is found that to first order in cycling frequency and in the special symmetric case, the maximum efficiency and minimum irreversible entropy production modes are equally efficient. Additionally, simple analytic expressions are obtained for efficiencies at maximum cooling power within each optimal mode. Under certain limiting conditions the bounding efficiency at maximum cooling power shown above is obtained. Third, the problem of imperfect heat switches linking the working fluid of an FTRC to external heat reservoirs is studied. The maximum efficiency cycling mode is obtained by numerically optimizing the FTRC. Two distinct optimum cycling conditions exist: (1) operation at the global maximum in efficiency, and (2) operation at the frequency of maximum cooling power. The efficiency evaluated at maximum cooling power, and the global maximum efficiency may provide improved bench-mark bounds on thermal efficiencies of certain real irreversible refrigeration cycles.
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7

White, Thomas J. "Development of a parametric analysis microcomputer model for evaluating the thermodynamic performance of a reciprocating Brayton cycle engine." PDXScholar, 1987. https://pdxscholar.library.pdx.edu/open_access_etds/3794.

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In this thesis, applicable data from research on IC engines have been adapted to PACE engine designs. Data from studies on heat transfer, friction, and pressure losses, in particular, have been used. Certain parameters which define operation and design characteristics appear to influence PACE engine performance very strongly. Some of the more critical parameters, notably friction and heat transfer coefficients, must be determined experimentally if accurate model results are to be expected. Pressure ratio, compressor RPM, and maximum combustor temperature, the independent operating parameters, also have a dramatic effect on engine performance. Other design or operating characteristics and working fluid properties are not controlled independently. These are dictated by the engine physical design configuration and operation, ambient conditions, and choice of fuel.
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8

Worm, Jeremy. "The Impact of Water Injection on Spark Ignition Engine Performance under High Load Operation." Thesis, Michigan Technological University, 2018. http://pqdtopen.proquest.com/#viewpdf?dispub=10684513.

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An experimental effort has been completed in which water injection was investigated as a means of enabling increases in engine output and high load efficiency. Water was injected into the intake port of a direct fuel injected, 4-cylinder, boosted engine with dual independent variable valve timing. The water was shown to increase volumetric efficiency and decrease the onset of knock which in turn enable more optimal combustion phasing. Both of these affects resulted increases in load of up to 5.5% at the same manifold pressure as the baseline case. The advancement of combustion phasing, combined with elimination of fuel enrichment resulted in an increase in full load thermal efficiency of up to 35%. Analysis is provided around these affects, as well as the phase transformation of water throughout the engine cycle.

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9

Dymek, Andrew A. "Effects of variable heat transfer coefficients and flow geometry on the performance of a variable speed heat pump." Thesis, Georgia Institute of Technology, 1986. http://hdl.handle.net/1853/17837.

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10

Fisher, Paul D. "Computer model of the performance of a thermoacoustic generator." Thesis, Monterey, California : Naval Postgraduate School, 1990. http://handle.dtic.mil/100.2/ADA237680.

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Thesis (M.S. in Physics)--Naval Postgraduate School, June 1990.
Thesis Advisor(s): Atchley, A.A. Second Reader: Hofler, T.J. "June 1990." Description based on signature page. DTIC Identifiers: Thermoacoustics, sound generators. Author(s) subject terms: Thermoacoustics. Includes bibliographical references (p. 51). Also available in print.
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Книги з теми "THERMODYNAMICS PERFORMANCE"

1

United States. National Aeronautics and Space Administration., ed. Automotive gas turbine power system-performance analysis code. [Washington, DC]: National Aeronautics and Space Administration, 1997.

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2

U.S. Nuclear Regulatory Commission. Office of Nuclear Regulatory Research. Division of Engineering., Idaho National Engineering Laboratory, and EG & G Idaho., eds. Performance of intact and partially degraded concrete barriers in limiting mass transport. Washington, DC: Division of Engineering, Office of Nuclear Regulatory Research, U.S. Nuclear Regulatory Commission, 1992.

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3

Smith, Steven M. The use of electrical transmission line theory to predict the performance of spacecraft radiators. Monterey, Calif: Naval Postgraduate School, 1992.

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4

United States. National Aeronautics and Space Administration., ed. Zero-G Thermodynamic Venting System (TVS) performance prediction program. Downey, Calif: Rockwell Aerospace, 1994.

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5

Domanski, Piotr. Impact of refrigerant property uncertainties on prediction of vapor compression cycle performance. Gaithersburg, MD: U.S. Dept. of Commerce, National Bureau of Standards, 1987.

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6

Shaye, Yungster, and NASA Glenn Research Center, eds. Real gas effects on the performance of hydrocarbon-fueled pulse detonation engines. [Cleveland, Ohio]: National Aeronautics and Space Administration, Glenn Research Center, 2003.

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7

Gilberto Francisco Martha de Souza. Thermal Power Plant Performance Analysis. London: Springer London, 2012.

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8

A, Willis Edward, and United States. National Aeronautics and Space Administration., eds. Performance of a supercharged direct-injection stratified-charge rotary combustion engine. [Washington, D.C.]: NASA, 1990.

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9

Gorla, Rama S. R. Probabilistic analysis of gas turbine field performance. [Cleveland, Ohio]: National Aeronautics and Space Administration, Glenn Research Center, 2002.

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10

Jet propulsion: A simple guide to the aerodynamic and thermodynamic design and performance of jet engines. Cambridge: Cambridge University Press, 1997.

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Частини книг з теми "THERMODYNAMICS PERFORMANCE"

1

Chauvin, Jacques. "Axial Flow Compressor Performance." In Thermodynamics and Fluid Mechanics of Turbomachinery, 713–36. Dordrecht: Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-5153-2_21.

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2

Kaur, Gurbinder. "Thermodynamics, Performance, and Configurations of SOFC." In Solid Oxide Fuel Cell Components, 123–48. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-25598-9_4.

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3

Hari Kumar, K. C. "Thermodynamics and Phase Equilibria of Iron-Base Systems." In High-Performance Ferrous Alloys, 1–35. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-53825-5_1.

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4

Sieverding, C. H. "Axial Turbine Performance Prediction Methods." In Thermodynamics and Fluid Mechanics of Turbomachinery, 737–84. Dordrecht: Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-5153-2_22.

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5

Lavalle, Catia, M. Rigol, M. Feldbacher, Fakher F. Assaad, and Alejandro Muramatsu. "Thermodynamics and Dynamics of Correlated Electron Systems." In High Performance Computing in Science and Engineering ’02, 181–93. Berlin, Heidelberg: Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-642-59354-3_15.

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6

Saha, Sujoy Kumar, Hrishiraj Ranjan, Madhu Sruthi Emani, and Anand Kumar Bharti. "Performance Evaluation Criteria Based on Laws of Thermodynamics." In SpringerBriefs in Applied Sciences and Technology, 25–97. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-20758-8_3.

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7

Moñino, Antonio, Encarnación Medina-López, Rafael J. Bergillos, María Clavero, Alistair Borthwick, and Miguel Ortega-Sánchez. "A Real Gas Model for Oscillating Water Column Performance." In Thermodynamics and Morphodynamics in Wave Energy, 7–27. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-90701-7_2.

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8

Krieg, Stefan. "Thermodynamics with 2+1+1 Dynamical Quark Flavors." In High Performance Computing in Science and Engineering ´15, 5–14. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-24633-8_1.

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9

Moñino, Antonio, Encarnación Medina-López, Rafael J. Bergillos, María Clavero, Alistair Borthwick, and Miguel Ortega-Sánchez. "Numerical Simulation of an Oscillating Water Column Problem for Turbine Performance." In Thermodynamics and Morphodynamics in Wave Energy, 45–65. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-90701-7_4.

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10

Fu, Ren Li, He Ping Zhou, Ke Xin Chen, and José Maria F. Ferreira. "Thermodynamics and Kinetic Considerations behind the Growth of AlN Whiskers Synthesized by Carbothermal Reduction." In High-Performance Ceramics III, 1403–8. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-959-8.1403.

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Тези доповідей конференцій з теми "THERMODYNAMICS PERFORMANCE"

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McClain, Stephen T. "Advanced Thermodynamics Applications Using Mathcad." In ASME 2009 International Mechanical Engineering Congress and Exposition. ASMEDC, 2009. http://dx.doi.org/10.1115/imece2009-11313.

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Mathcad thermodynamic property function sets have been developed for many engineering fluids. In past publications, which introduced the property function sets, examples were provided that demonstrated the usefulness of the functions in solving typical homework problems for either an Introduction to Thermodynamics or an Applied Thermodynamics course. The capabilities of Mathcad allow for much more complicated analyses than are typically discussed in undergraduate engineering thermodynamics courses. Specifically, Mathcad’s abilities 1) to perform calculations on multi-dimensional arrays, 2) to optimize functions using modified Newton-Raphson techniques, 3) to read text-file data sets, and 4) solve systems of non-linear equations, enables the analysis of very complex thermodynamic problems. Examples are provided to demonstrate the very robust capabilities of Mathcad using previously developed thermodynamic property function sets. The examples discussed include the optimization of a steam power cycle using two feedwater heaters, the analysis of gas turbine data acquired from a small turbojet apparatus, and the analysis of evaporator flooding on the performance of an industrial refigeration system. The analyses and figures produced in Mathcad demonstrate its effectiveness for complex thermodynamic calculations and for providing insight into the performance of complex thermodynamic systems.
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2

Bois, Gerard, Yaguang Heng, Qifeng Jiang, Yuming Han, Huiyu Zhang, Weibin Zhang, Zhengwei Wang, and Xiaobing Liu. "Performance analysis on a tesla bladed disc pump." In European Conference on Turbomachinery Fluid Dynamics and Thermodynamics. European Turbomachinery Society, 2021. http://dx.doi.org/10.29008/etc2021-488.

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3

Ghenaiet, Adel, and Ibrahim Beldjilali. "Improvement of the performance of an axial fan with counter-rotation." In European Conference on Turbomachinery Fluid Dynamics and Thermodynamics. European Turbomachinery Society, 2019. http://dx.doi.org/10.29008/etc2019-110.

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4

Borges, João Eduardo. "Influence of the reaction on the performance of the Crossflow turbine." In European Conference on Turbomachinery Fluid Dynamics and Thermodynamics. European Turbomachinery Society, 2021. http://dx.doi.org/10.29008/etc2021-752.

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5

Balaghi Enalou, Hossein, and Serhiy Bozhko. "Performance improvement of the CFM56-3 aircraft engine by electric power transfer." In European Conference on Turbomachinery Fluid Dynamics and Thermodynamics. European Turbomachinery Society, 2019. http://dx.doi.org/10.29008/etc2019-004.

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6

Berger, Antonio, Thomas Polklas, Oliver Brunn, and Franz Joos. "Experimental investigation on performance of a control stage turbine under partial admission." In European Conference on Turbomachinery Fluid Dynamics and Thermodynamics. European Turbomachinery Society, 2019. http://dx.doi.org/10.29008/etc2019-135.

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7

Bontempo, Rodolfo, Enrico Marco Di Marzo, and Marcello Manna. "3-D blade resolved CFD performance analysis of a Ducted Wind Turbine." In European Conference on Turbomachinery Fluid Dynamics and Thermodynamics. European Turbomachinery Society, 2021. http://dx.doi.org/10.29008/etc2021-614.

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8

Kuklina, Natalia I., Maksim V. Smirnov, Aleksandr A. Sebelev, Eugeniy A. Volkov, and Nikolay Zabelin. "Improvement of a gas turbine exhaust hood and diffuser performance within spatial limitations." In European Conference on Turbomachinery Fluid Dynamics and Thermodynamics. European Turbomachinery Society, 2019. http://dx.doi.org/10.29008/etc2019-115.

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9

Diehl, Markus, and Jürg Alexander Schiffmann. "Impact of large tip clearance ratios on the performance of a centrifugal compressor." In European Conference on Turbomachinery Fluid Dynamics and Thermodynamics. European Turbomachinery Society, 2019. http://dx.doi.org/10.29008/etc2019-304.

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Etemadi, Majed, Jeff Defoe, and Reza Taghavi-Zonouz. "The effects of free-stream turbulence intensity on the aerodynamic performance of compressor cascade." In European Conference on Turbomachinery Fluid Dynamics and Thermodynamics. European Turbomachinery Society, 2019. http://dx.doi.org/10.29008/etc2019-382.

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Звіти організацій з теми "THERMODYNAMICS PERFORMANCE"

1

Howard, Isaac, Thomas Allard, Ashley Carey, Matthew Priddy, Alta Knizley, and Jameson Shannon. Development of CORPS-STIF 1.0 with application to ultra-high performance concrete (UHPC). Engineer Research and Development Center (U.S.), April 2021. http://dx.doi.org/10.21079/11681/40440.

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This report introduces the first release of CORPS-STIF (Concrete Observations Repository and Predictive Software – Structural and Thermodynamical Integrated Framework). CORPS-STIF is envisioned to be used as a tool to optimize material constituents and geometries of mass concrete placements specifically for ultra-high performance concretes (UHPCs). An observations repository (OR) containing results of 649 mechanical property tests and 10 thermodynamical tests were recorded to be used as inputs for current and future releases. A thermodynamical integrated framework (TIF) was developed where the heat transfer coefficient was a function of temperature and determined at each time step. A structural integrated framework (SIF) modeled strength development in cylinders that underwent isothermal curing. CORPS-STIF represents a step toward understanding and predicting strength gain of UHPC for full-scale structures and specifically in mass concrete.
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2

Walters, Joseph. Optimization and Thermodynamic Performance Measures of a Class of Finite Time Thermodynamic Cycles. Portland State University Library, January 2000. http://dx.doi.org/10.15760/etd.1185.

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3

Fenton, Kyle R., Eric Allcorn, and Ganesan Nagasubramanian. Next Generation Anodes for Lithium Ion Batteries: Thermodynamic Understanding and Abuse Performance. Office of Scientific and Technical Information (OSTI), September 2017. http://dx.doi.org/10.2172/1395208.

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4

Fenton, Kyle R., Eric Allcorn, and Ganesan Nagasubramanian. Next Generation Anodes for Lithium Ion Batteries: Thermodynamic Understanding and Abuse Performance. Office of Scientific and Technical Information (OSTI), January 2018. http://dx.doi.org/10.2172/1417578.

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5

Fenton, Kyle R., Eric Allcorn, and Ganesan Nagasubramanian. Next Generation Anodes for Lithium-ion Batteries: Thermodynamic Understanding and Abuse Performance. Office of Scientific and Technical Information (OSTI), April 2018. http://dx.doi.org/10.2172/1462818.

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6

Fenton, Kyle R., Eric Allcorn, and Ganesan Nagasubramanian. Next Generation Anodes for Lithium-ion Batteries: Thermodynamic Understanding and Abuse Performance. Office of Scientific and Technical Information (OSTI), July 2018. http://dx.doi.org/10.2172/1463069.

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7

Fenton, Kyle R., Eric Allcorn, and Ganesan Nagasubramanian. Next Generation Anodes for Lithium-Ion Batteries: Thermodynamic Understanding and Abuse Performance. Office of Scientific and Technical Information (OSTI), December 2016. http://dx.doi.org/10.2172/1335204.

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8

Grauer and Chapman. L52331 Exhaust Manifold Design Guidelines to Optimize Scavenging and Turbocharger Performance. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), August 2009. http://dx.doi.org/10.55274/r0010664.

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To develop the requisite air flow rate, the turbocharger must operate at a relatively high efficiency. But as important, the system pressure losses must be minimized to optimize turbocharger operating flexibility so that the turbine can produce sufficient power to operate the turbocharger compressor. The relationship between the various pressures and pressure losses throughout the turbocharged engine system, the turbocharger overall efficiency, ambient conditions, and the required turbine inlet temperature for sustainability is rooted in fundamental thermodynamic principles. The goal of the Exhaust Manifold Design Guidelines project was to investigate the NOX reduction role played by the exhaust manifold by exploring the impact of the exhaust manifold design on turbocharger and engine operation, as well as utilizing the abundant sets of field test data already provided by Hoerbiger Engineering Services (HES). For this project, exhaust manifold performance was defined as the capacity of the exhaust manifold to: 1) optimize cylinder scavenging efficiency; and 2) minimize the pressure differential between the compressor discharge and the turbine inlet.
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9

Boehm, R. Maximum performance of solar heat engines: discussion of thermodynamic availability and other second law considerations and their implications. Office of Scientific and Technical Information (OSTI), September 1985. http://dx.doi.org/10.2172/5244073.

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10

White, Thomas. Development of a parametric analysis microcomputer model for evaluating the thermodynamic performance of a reciprocating Brayton cycle engine. Portland State University Library, January 2000. http://dx.doi.org/10.15760/etd.5678.

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