太阳能集热器性能的模拟

Simulation of Solar Collector Performance

以太阳能直接蒸汽直接发电系统的槽式太阳能集热器为研究对象,在建立其热力学模型的基础上,对集热器的传热与流动性能进行了系统的模拟研究。模拟结果表明:提高工作流体的初始温度,集热器效率反而降低;增加流量可以提高集热器效率;太阳辐射强度越大集热器的效率越大,并且影响较大。

Take the parabolic trough collector of solar direct steam generation system as the research object,based on the establishment of the thermodynamic model,the system simulation research was done on the heat transfer and flow performance.The simulation results show that improve the working fluid of the initial temperature,the collector efficiency decline;Increase the flow can improve the collector efficiency;Increase the solar radiation intensity,collector efficiency increases,and greatly influenced.