摘要
空间太阳能热动力发电系统是一种新型的空间电力系统。吸热 /蓄热器是热动力发电系统关键部件之一。吸热 /蓄热器采用的蓄热方式是相变蓄热。通过对吸热 /蓄热器的能量分析 ,可以很好的了解吸热器的能量传递 ,以及相变材料的工作过程。建立了太阳能热动力发电系统吸热器腔体辐射模型 ,结合换热管的传热模型计算了吸热器的传热过程。得到了吸热器的能量损失、工质吸收能量、PCM的潜热储能和显热储能等重要指标 ,并且得到了换热管最大温度 ,工质出口温度等重要结果。
Solar Dynamic Power System is to be the space energy system in the future.The heat receiver is one of the SDPS key parts.Phase change thermal storage is used in heat receiver.The energy analysis can be used to understand the energy transfer in heat receiver and the thermal storage in PCM.The heat receiver cavity radiation mathematical model and the gas tube heat model were established.Heat loss,energy absorbed by gas,the latent and sensible thermal storage in PCM,tube maximum temperature,gas exit temperature and liquid PCM fraction were calculated.The results were analysed and could be used in heat receiver designing.
出处
《航空动力学报》
EI
CAS
CSCD
北大核心
2002年第3期332-335,共4页
Journal of Aerospace Power
基金
国家自然科学基金资助项目 (5 98760 0 3 )
关键词
太阳能
热动力系统
蓄热器
能量分析
吸热器
thermal analysis
phase change thermal storage
solar dynamic power
heat receiver
