Closed Brayton Cycle for Space Power and Research of it in Our Country

Constitution, working principle of closed Brayton cycle solar dynamic power system and how to choose circulating medium are disertated in this paper. Main Energy conversion part of the cycle turboalternator compressor is emphatically introduced. Compared with photovoltaic cell, solar dynamic power system is compact, high in efficiency and comparatively cheap in a long run. Much research on closed Brayton cycle have been done in our country. But there still exist some aspects that lack of investigations.