中文摘要：

节能、提高能效、开发新能源（包括可再生清洁能源）是今后能源发展的重点,而能量转换系统的性能优化与参数设计是高效利用能源的一个关键科学问题.结合国内外的研究现状和本研究组近年来的研究工作,介绍在磁制冷、半导体热电器件、太阳能热利用、化学机与化学泵、燃料电池及其耦合系统、电解水制氢系统、布朗马达及量子热力学循环等能量转换系统的性能优化与参数设计方面所取得的一些重要成果.

英文摘要：

Saving energy,increasing efficiency of energy utilization and empoldering new and renewable clean energy sources are emphases of developing energy source in the coming years.The performance optimization and parametric design of energy conversion systems is one of the key science problems in energy utilization with high efficiency.In the present paper,some important research results involving the optimum performance and parametric design of a variety of energy conversion systems,such as the magnetic refrigeration,semiconductor thermoelectric devices,thermal utilization of solar energy,chemical engines and chemical pumps,fuel cell hybrid systems,water electrolysis systems for hydrogen production,Brownian motors,quantum thermodynamic cycle systems,and so on,are introduced in combination with both the research status at home and abroad and the research work of our group in recent years.