江苏大学学报（自然科学版）2012，Vol.33Issue(1)：49-54,6.DOI:10.3969/j.issn.1671-7775.2012.01.011
单回路脉动热管传热性能的试验
Experiment on heat transfer characteristics of single loop pulsating heat pipe
摘要
Abstract
The heat transfer characteristics of steady state for single loop red copper-water pulsating heat pipe were investigated under the conditions of air-cooling and constant heating power. The characteristics of wall temperature distribution along tube length, and the variety rules of condenser and evaporator temperature rise or drop, heat transfer temperature difference and heat transfer thermal resistance with heat input power were discussed. The effects of charging ratio and pipe diameter on heat transfer performance were also analyzed. The results show that the heat transfer temperature difference and the average temperature of condenser and evaporator increase with the increasing of heat transfer power, while thermal resistance decreases. The effects of pipe diameter, charging ratio and heat power on thermal resistance are obvious for small heat input power. Reducing filling ratio or increasing internal diameter and heat power can reduce thermal resistance of heat pipe significantly. However, pipe diameter, charging ratio and heat power have slight effect on thermal resistance for high heat input power. The main factor of thermal resistance is cooling thermal resistance. Increasing external diameter or improving cooling condition may reduce the thermal resistance of heat pipe and improve heat transfer performance of heat pipe.关键词
单回路脉动热管/充液率/管径/传热性能/传热热阻Key words
single loop pulsating heat pipe/ charging ratio/ pipe diameter/ heat transfer performance/ heat transfer thermal resistance分类
能源科技引用本文复制引用
苏磊,张红,丁雷江,丁锐..单回路脉动热管传热性能的试验[J].江苏大学学报（自然科学版）,2012,33(1):49-54,6.基金项目
江苏省教育厅自然科学基金资助项目(02KJB470001) （02KJB470001）
