首页|期刊导航|哈尔滨工业大学学报（英文版）|Experimental investigation of enhanced heat transfer for fined circular tube heat exchanger with rectangular fins
哈尔滨工业大学学报（英文版）2006，Vol.13Issue(4)：385-390,6.
Experimental investigation of enhanced heat transfer for fined circular tube heat exchanger with rectangular fins
Experimental investigation of enhanced heat transfer for fined circular tube heat exchanger with rectangular fins
摘要
Abstract
Presents a set of data for flow and heat transfer of finned-tube bundle under the condition of high air flow velocity. Air flow and heat transfer over a 4 ×4 ( columns × rows) finned-tube heat exchanger with rectangular fins was investigated experimentally in a wind tunnel with constant wall temperatures condition. The air flow velocity based on the minimum flow cross-section area over flow channel ranged from 13.8 to 50. 2 m/s,the heat transfer rate ranged from 21.8 to 47. 1 kW, and the air temperatures increase ranged from 10. 9 to 19. 8°C. The present results were compared with results calculated from correlations proposed by CSPE. For air flow velocity less than 25 m/s, these two results of heat transfer agreed well with each other, whereas for larger velocity, our test data disagreed with the CSPE correlations. For the friction factor, present data are much higher than the predicted results in the whole range. Finally, correlations for friction factors and heat transfer coefficients are proposed based on the experimental results.关键词
heat exchanger/rectangular finned-tube/enhanced heat transfer/friction factorKey words
heat exchanger/rectangular finned-tube/enhanced heat transfer/friction factor分类
能源科技引用本文复制引用
LI Yong-xing,YANG Dong,CHEN Ting-kuan..Experimental investigation of enhanced heat transfer for fined circular tube heat exchanger with rectangular fins[J].哈尔滨工业大学学报（英文版）,2006,13(4):385-390,6.基金项目
Sponsored by the National Natural Science Special Foundation of China ( Grant No. 50323001 ) and Xi'an Jiaotong University Doctoral Foundation for Teacher. （ Grant No. 50323001 ）
