热超导管式全玻璃真空管集热器的热性能分析

Thermal performance analyses of superconductor heat pipe of all-glass evacuated tubular collectors

对热超导管作传热管的全玻璃真空管太阳能集热器的传热机理进行了分析,给出了其总热损失系数、效率因子、热迁移因子和瞬时效率的表达式。并通过实例将瞬时效率的理论计算值与实验测定值进行了比较,两者的相对误差小于6.74%。说明相关的计算表达式较好地反映了全玻璃真空管太阳能集热器的传热性能与特点,同时讨论了如何提高集热器的性能,其结论可用于该类真空管集热器的设计与性能预测。

The abio-superconductor heat pipe is used as heat transfer tube of all-glass of evacuated tubular solar collectors. Based on thermal analysis, the overall heat loss coefficient, the efficiency factar and the heat removal factor of superconductor heat pipe evacuated tubular collector are presente＆they were compared with instantaneous efficiency between theory value of example and measure value of experiment.As a result ,their opposite error less than 3.2% ,it explained related calculation expression that it reflected preferably transmit heat function and characteristics of vacuum tube solar collector .It can used for that type of vacuum tube of the design and the per fornumceforecast.