Numerical investigation of thermal performance of heat loss of parabolic trough receiver

作者：Xiong YaXuan; Wu YuTing^*; Ma ChongFang; Traore Modibo Kane; Zhang YeQiang

来源：Science China Technological Sciences, 2010, 53(2): 444-452.

DOI：10.1007/s11431-009-0279-x

• parabolic trough receiver
• two-dimensional empirical model
• thermal performance of heat loss
• annular space
• selective coating
• wind velocity

Based on the analysis of computation methods and heat transfer processes of the parabolic trough receiver running in steady state, a two-dimensional empirical model was developed to investigate the thermal performance of heat loss of parabolic trough receivers under steady state equilibrium. A numerical simulation was conducted for the parabolic trough receiver involved in a literature. Comparisons between numerical and experimental results show that the empirical model is accurate enough and can be used to investigate the thermal performance of heat loss of parabolic trough receivers. The thermal performance of heat loss of UVAC3 and the new-generation UVAC2008 was investigated respectively. The simulation results show that selective coatings and annular pressure influence the thermal performance of heat loss of parabolic trough receivers greatly, wind velocity influences the thermal performance of thermal loss of parabolic trough receivers only a little in contrast with the emittance of selective coatings and air pressure in annular space. And the thermal performance of thermal loss of the new-generation parabolic trough receiver has been improved in a large amount.

• 出版日期2010-2
• 单位北京工业大学