高温熔盐横纹管传热特性与强化机理研究

HEAT TRANSFER CHARACTERISTIC AND ENHANCED MECHANISM OF HIGH-TEMPERATURE MOLTEN SALT IN TRANSVERSE CORRUGATED TUBES

本文对以熔融盐为传热工质的横纹管传热过程进行了实验研究。研究温度、热流密度对横纹管传热性能的影响,并与光管的传热性能进行比较,探讨了强化传热的机理,确定了强化传热的范围和途径。实验结果表明:横纹管比光管具有更好的传热性能。

Heat transfer in a transverse corrugated tube using molten salt as working fluid is investigated.The influence of heat transfer by temperature and thermal flux is investigated.The heat transfer characteristics are compared with those in a smooth pipe,and the range and approach of enhanced mechanism are discussed.The results show that the heat transfer of transverse corrugated tube is better than that in smooth tube.