SET Proceedings 2978-4387 Caravel Press 10.65582/set.2004.046 2004.046 Dynamic Simulation of Closed Brayton Cycle Solar Thermal Power System WuYuting wuyuting@bjut.edu.cn RenJianxun GuoZengyuan MaChongfang Key Lab of Education Ministry of Heat Transfer Enhancement and energy conservation, College of environmental and energy , Beijing University of Technology, Beijing 100084,PR. China Department of Engineering Mechanics, Tsinghua University, , Beijing 100084 28062004 3 978-1-995850-06-1 1 6 28 June 2004 © 2004 Copyright WSSET 2004

The work process of Closed Brayton Cycle Solar Thermal Power System is a dynamic process and the periodical change of eclipse and sun period will influence the system performance. In order to study the dynamic characteristic of the system, a dynamic model is proposed using lumped method and the dynamic simulations of space solar-dynamic power system with the electrical output power of 10 kW are performed. The simulation results indicated that the variations of temperature of phase change material and electrical output power with time are very small when the phase change materials are in the state of two phase, but the variations are bigger when the Phase-change materials are in the state of single phase. In order to gain a steady electrical output power, phase change material must be in the state of two-phase by choosing proper parameters of solar thermal power system.

 solar energy dynamic power system space station dynamic simulation 28 to 30 June 2004 3rd International Conference on Sustainable Energy Technologies SET2004 3 Nottingham, United Kingdom