塔式太阳能热力发电技术进展

开发和利用太阳能是当今世界新能源技术革命所面临的重大课题,尤其是太阳能热力发电对人类环境的改善和电力行业可持续发展具有重要的战略意义,必将成为本世纪一种重要能源产业.为此,在比较3种太阳能热力发电系统性能的基础上,阐述了塔式太阳能热力发电系统的发展历程和特点,介绍了塔式热力发电的基本原理及其示范电站的技术进展,着重分析了塔式热力发电所涉及的关键技术,包括太阳热能定日镜、受热器和高温热能储存技术.通过对关键技术的分析,指出大规模高温热能储存是实现太阳能热力发电需优先解决的关键技术,同时提出了发展中国塔式太阳能热力发电技术所需相关基础研究的建议.

Technology Progress in Solar Power Tower

Development and utilization of solar power is a momentous task to be faced by new energy technology innovation around the world.The solar power tower,particularly,is of strategic importance for environment improvement and continued development of electric power industry.These advantages are bound to make it a kind of the globally important energy industry in this century.On the basis of comparing 3-type solar thermal power generation systems,both the development history and the characteristics of solar power tower(SPT) are expounded.The basic principle of SPT and the technology progress in SPT power plant are also presented.As for the SPT generation,several key techniques are analyzed specially.They are solar heliostats,receiver and high-temperature thermal storage technology.Based on the analysis of the above key techniques,it is pointed out that large-scale high-temperature thermal storage technique should be given top priority in realizing solar thermal power generation.At the same time,some basic research contents and research direction are put forward for developing SPT system in China.