TY - JOUR
TI - Heat transfer and mechanical characteristics of the absorber in solar photo-thermal power generation system
AU - Xiao Zhijun
JN - Thermal Science
PY - 2023
VL - 27
IS - 2
SP - 1023
EP - 1030
PT - Article
AB - In order to solve the problems of thermal fatigue, high temperature  gasification and low temperature solidification of the heat receiver, a  numerical calculation model for the heat transfer function of the tower type  solar thermal power gener­ation high temperature receiver is proposed. A  perfect analysis method is used for the simulation, and a thermal simulation  program for predicting the heat gain of the solar thermal energy tower is  compiled. In this paper, considering the various field connection  characteristics, numerical value and distribution of convective heat  transfer coefficient of the heat absorption medium, the temperature of the  outer wall of the heat pipe absorption, and the thermal image conversion  work in a non-uniform heat flow boundary area of a model of heat receiver  was studied. The experiments show that when the flow rate of molten salt in  the tube increases from 1 m/s to 2 m/s, the heat collection efficiency of  the heat collection increases rapid­ly, while the flow time is more 3 m/s,  the heat collection efficiency increases more gradually. The efficiency of  heat absorption of the heat receiver is in the middle of the heat receiver,  which can achieve 88 of the thermal image conversion. In the same large  enough value, the heat collected at the inlet and outlet of the heat sink is  about 82. It is clear that the numerical simulation provides a reliable  basis for the design engineering, and provide guidance for the design of a  full control model of tower solar photovoltaic power generation.