Exergoeconomic performance optimization of an endoreversible intercooled regenerated Brayton cogeneration plant Part 2: Heat conductance allocation and pressure ratio optimization
Exergoeconomic performance optimization of an endoreversible intercooled regenerated Brayton cogeneration plant Part 2: Heat conductance allocation and pressure ratio optimization
... reserved. Exergoeconomic performance optimization of an endoreversible intercooled regenerated Brayton cogeneration plant Part 2: Heat conductance allocation and pressure ratio optimization Bo Yang, ... [1] Chen L, Yang B, Sun F. Exergoeconomic performance optimization of an endoreversible intercooled regenerated Brayton cogeneration plant. Part 1: thermodynamic model and parameter analyses. Int. ... allocation of the regenerator and the total pressure ratio are fixed, there exist an optimal intercooling pressure ratio and a group of optimal heat conductance allocations of the hot-, cold- and consumer-side...
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Exergoeconomic performance optimization of an endoreversible intercooled regenerated Brayton cogeneration plant Part 1: Thermodynamic model and parameter analyses
... endoreversible intercooled regenerated Brayton cogeneration plant. Part 2: heat conductance allocation and pressure ratio optimization. Int. J. Energy and Environment, in press. International Journal of ... cogeneration plant with heat resistance and internal irreversibility [27] and an irreversible Dual cycle cogeneration plant with heat resistance, heat leakage and internal irreversibility [28]. Exergoeconomic ... time exergoeconomic performance analysis and optimization for an endoreversible simple [44] and regenerative [45] gas turbine closed-cycle heat and power cogeneration plant coupled to constant...
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Exergoeconomic performance optimization of an endoreversible intercooled regenerative Brayton combined heat and power plant coupled to variable-temperature heat reservoirs
... Yang B, Chen L, Sun F. Exergoeconomic performance optimization of an endoreversible intercooled regenerated Brayton cogeneration plant. Part 2: heat conductance allocation and pressure ratio optimization. ... Exergoeconomic performance optimization of an endoreversible intercooled regenerated Brayton cogeneration plant. Part 1: thermodynamic model and parameter analyses. Int. J. Energy and Environment, ... reserved. 506 reheat and total pressure ratio on the performance of the CHP plant. Khaliq and Choudhary [5] evaluated the performance of intercooled reheat regenerative gas turbine CHP plant by using...
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Finite time exergoeconomic performance optimization of a thermoacoustic heat engine
... economic optimization to evaluate and optimize the design and performance of energy systems is exergoeconomic (or thermoeconomic) analysis [16, 17]. Salamon and Nitzan’s work [18] combined the endoreversible ... Equations (35) and (36) are the relationship between the efficiency and the profit rate of the irreversible thermoacoustic heat engine with heat resistances and heat leakage losses. If 1 ϕ > and 0q ... complex heat transfer exponent, 1 k is the overall heat transfer coefficient and 1 F is the total heat transfer surface area of the hot-side heat exchanger, 2 k is the overall heat transfer coefficient...
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Finite time exergoeconomic performance optimization for an irreversible universal steady flow variable-temperature heat reservoir heat pump cycle model
... properties of heat transfer, heat reservoir, working fluid, and the theory of heat exchangers, the heat transfer rates ( 1H Q and 2H Q ) released to the heat sink and the heat transfer rates ( 1L Q and ... Finite time exergoeconomic performance optimization 5.1 Optimal distributions of heat conductance If heat conductances of hot- and cold-side heat exchangers are changeable, the profit rate of the ... maximum of L C and 1wf C , respectively; 2minL C and 2maxL C are the minimum and maximum of L C and 2wf C , respectively; and 1H N , 2H N , 1L N and 2L N are the numbers of heat transfer units of...
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Exergoeconomic performance optimization for a steadyflow endoreversible refrigeration model including six typical cycles
... Chen L, Sun F. Exergoeconomic performance optimization of an endoreversible intercooled regenerated Brayton cogeneration plant. Part 2: heat conductance allocation and pressure ratio optimization. ... Performance analysis According to the properties of working fluid and the theory of heat exchangers, the rate of heat transfer 1H Q and 2H Q released to the heat sink and the rate of heat transfer ... between 3 and 4, and 4 and 5 are two cooling branches with constant thermal capacity 1 out C and 2 out C . In addition, the heat conductances (heat transfer coefficient-area product) of the hot- and...
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Performance optimization of a PEM hydrogen-oxygen fuel cell
... cell stacks and optimization of fuel cell system integration and operation. The aim of this research is to design and construct a mathematical model for investigating the performance of a PEM fuel ... useful for estimating the performance of PEM fuel cell stacks and optimization of fuel cell system integration and operation. Copyright © 2013 International Energy and Environment Foundation ... where E0 is a reference potential and the partial pressure terms are related to the hydrogen and oxygen concentrations at the anode and cathode. Further expansion of this equation return [7, 8]:...
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Cooling load and COP optimization of an irreversible Carnot refrigerator with spin-1/2 systems
... irreversibilities of heat resistance, internal friction and bypass heat leakage, and studied the optimal ecological performances of the quantum heat engines. Besides performance of harmonic and spin-1/2 quantum ... performance optimization of a Carnot quantum engine. In 2000, Feldmann and Kosloff [20] introduced internal friction in the performance investigation for a quantum Brayton heat engine and heat ... Geva and Kosloff [9] first established a quantum heat engine model with working medium consisting of many non-interacting spin-1/2 systems and analyzed the optimal performance of the quantum heat...
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Cooling load optimization of an irreversible refrigerator with combined heat transfer
... optimal expansion of a heated working fluid with convective radiative heat transfer [7] and to investigate the effects of variable specific heat ratio of working fluid on the performance of an irreversible ... presented [13]. The performance of an air-standard Miller cycle has been analyzed using finite-time thermodynamics [14]. An endoreversible intercooled regenerative Brayton cogeneration plant model coupled ... 5 and 6 show the effects of heat conductance ratio H and heat transfer area ratio A on the cooling load, respectively. Both parameters, H and A, have the same effect on the cooling load as can...
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