TY - JOUR
TI - Experimental study on heat transfer characteristics of high-temperature heat pipe
AU - Xu Bowen
AU - Li Jinwang
AU - Lu Ningxiang
AU - Wang Changji
JN - Thermal Science
PY - 2022
VL - 26
IS - 6
SP - 5227
EP - 5237
PT - Article
AB - High-temperature heat pipes have broad application prospects in terms of thermal protection of hypersonic aircraft and cooling of space nuclear reactors. In this paper, a high-temperature heat pipe heat transfer performance experimental platform is built to study the heat transfer performance of high-temperature heat pipes at different inclination angles. A heat transfer network model of high-temperature heat pipes containing NCG is established to analyze the influence of NCG. The results show that as the inclination angle of the heat pipe increases, the start-up time of the heat pipe does not change. The heat transfer performance is best when the inclination angle is 30°. High-temperature heat pipes containing NCG will reduce the effective length of the high-temperature heat pipe, increase the thermal resistance, and reduce the heat transfer performance. The high-temperature heat pipe analysis model with NCG established in this paper can be used to predict the heat transfer performance of high-temperature heat pipes containing NCG.