During high temperature thermo-chemical conversion utilization of solar

problems like local high temperature and poor heat transfer between two cavities occurred in the conventional directly and indirectly irradiated solar high temperature reactors.Thus

a new solar high-temperature phase transition reactor was developed by using high temperature heat plate-heat pipe technology.Its key part is high temperature shaped heat pipe(HTSHP).To investigate the heat bearing capacity of the HTSHP

the temperature field

stress field and thermal deformation of the HTSHP was numerically simulated

by establishing the thermal resistance model of the HTSHP and using thermal-stress coupling function of the large finite element analysis software ANSYS.The analysis shows that

the maximum temperature of the HTSHP is 768 ℃

the maximum temperature difference is 18℃and the temperature uniformity and heat transfer capability is excellent.The thermal stress concentration occurs on the transitionally connecting heat plate.The maximum stress is 24.6 MPa

meeting the assessment requirements of the Steel Pressure Vessels-Analysis and Design Standard(JB/T4732—2005).