新型CPC热管式集热器的设计与模拟分析

Design and Simulation Analysis of a Novel CPC Heat-pipe Heat Collector

基于CPC型集热器的发展现状,设计出新型CPC热管式集热器。介绍了该集热器的聚光面和接收器的结构设计计算过程,并对集热器进行了集热分析。采用MATLAB建模仿真技术对该集热器进行建模和动态仿真来预测该新型CPC热管式集热器的运行情况,得出新型CPC热管式集热器的有效输出能量、出口温度、瞬时集热效率的变化图。通过试验研究证实了新型CPC热管式集热器可以产生蒸汽,可用于制冷,尤其是热源品位要求较高的氨吸收式制冷,同时还可用于汽轮机发电和太阳能海水淡化等场合。

On the basis of the present development status of CPC type heat collectors,a novel one of the same type was designed.In addition,the light accumulating surface of the collector and the calculation process for the structural design of the receiver were described along with a heat collection analysis of the heat collector.Matlab modeling-simulation technology was adopted for the modeling and dynamic simulation of the collector to predict its operating conditions and a chart showing the change of the effective output energy,outlet temperature and transient heat collection efficiency of the collector was obtained.Through an experimental study,it is verified that the collector can be used for producing steam and refrigeration,especially ammonia absorption type refrigeration,which requires a relatively high standard of heat sources.In the meanwhile,it can also be used for steam-turbine power generation units and solar energy-based sea water demineralization plants etc.