东南大学学报（自然科学版）Issue(6)：1097-1100,4.DOI:10.3969/j.issn.1001-0505.2015.06.013
卧式螺旋管内流动沸腾传热恶化特性及其判断准则
Flow boiling heat transfer deterioration characteristics and its criterion in horizontal helically-coiled tube
摘要
Abstract
An investigation was experimentally carried out with R134a to explore flow boiling heat transfer deterioration characteristics and its prediction criterion in horizontal helically-coiled tubes. The results show that in high quality area,the inside wall temperature soars generally and then the outer wall temperature rises in low mass flow rate;but their take-off point spacing is small and rising point is about the quality of 0.73.The inside and outside wall temperature soars nearly simultaneous-ly in high mass flow rate,and rising point is about the quality of 0.78.The relationship between the critical heat flux and the quality and the influence of heat flux on the average heat transfer coefficient are analyzed.Based on the experimental results,the prediction model of heat transfer deterioration for flow boiling heat transfer in the horizontal helically-coiled tube is developed.It is verified that the predicted values are in agreement with the experimental values.关键词
传热恶化/卧式螺旋管/壁温飞升/预测准则Key words
heat transfer deterioration/horizontal helically-coiled tube/wall temperature rising/pre-diction criterion分类
能源科技引用本文复制引用
冀翠莲,韩吉田,陈常念,刘晓鹏..卧式螺旋管内流动沸腾传热恶化特性及其判断准则[J].东南大学学报（自然科学版）,2015,(6):1097-1100,4.基金项目
国家自然科学基金资助项目（5077605，51076084）． （）
