A solar dynamic (SD) power system composed of a concentrating solar collector and an irreversible Brayton cycle system is set up, where the heat losses of the collector are dominated by the radiation, the heat transfer between the collector and the Brayton cycle system obeys Newton’s law, and the heat transfer between the Brayton cycle system and the ambient obeys the radiant heat transfer law. The cycle model is used to investigate synthetically the influence of the radiant heat losses of the collector, the finite-rate heat transfer, and the irreversible adiabatic processes in the Brayton cycle system on the performance of a space SD power Brayton system. The overall efficiency of the system and the other performance parameters are optimized. The optimal values of the important parameters and their corresponding upper or lower bounds are determined. Finally, the optimal performance of an endoreversible SD power Carnot system is simply derived.
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August 2006
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The Thermodynamic Performance Analysis of an Irreversible Space Solar Dynamic Power Brayton System and its Parametric Optimum Design
Y. Zhang
Department of Physics,
Xiamen University
, Xiamen 361005, P.R.C.
J. Chen
J. Sol. Energy Eng. Aug 2006, 128(3): 409-413 (5 pages)
Published Online: February 24, 2006
Article history
Received:
October 23, 2005
Revised:
February 24, 2006
Citation
Zhang, Y., and Chen, J. (February 24, 2006). "The Thermodynamic Performance Analysis of an Irreversible Space Solar Dynamic Power Brayton System and its Parametric Optimum Design." ASME. J. Sol. Energy Eng. August 2006; 128(3): 409–413. https://doi.org/10.1115/1.2212440
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