Design and characteristics of a novel tapered tube bundle receiver for high-temperature solar dish system
作者： Guoqiang Xu , Ye Wang , Yongkai Quan , Haiwang Li , Sha Li
DOI: 10.1016/J.APPLTHERMALENG.2015.08.090
关键词:
摘要: Abstract Most of current receivers for high-temperature (>1000 K) solar thermal utilizations were confronted with non-uniform flux distribution on absorbers, which would result in cracking and melting as well flow instability. This paper proposes a new design tapered tube bundle receiver (TTBR) by investigating the geometrical principle dish concentrators, makes each passage absorber parallel concentrated sun rays to absorb uniform thermal. The performance was confirmed using theory energy balance, Ray-tracing simulation CFX simulation. Calculations based balance indicated that efficiency TTBR achieves 80%. results showed are able irradiate entire tubes uniformly distribute tube. And according field CFX, attributed circumferential inflow structure, almost equivalent air mass rate obtained tube, indicating designed can achieve passages, laid good foundation further stable efficient heat transfer procedure.
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