期刊
CASE STUDIES IN THERMAL ENGINEERING
卷 51, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.csite.2023.103483
关键词
Wound tube heat exchanger; Corrugated tubes; Continuous spiral; Enhanced heat transfer
A novel approach to heat exchangers, featuring a continuous spiral baffle structure, was studied and analyzed for its flow field and thermal transfer characteristics. Increasing the entry speed on the shell pass resulted in a drop in fluid temperature, shrinkage of the low-temperature segment, and escalated resistance within the heat exchanger. Additionally, increasing the corrugated height and decreasing the corrugated pitch improved the overall heat transfer performance.
A novel approach to heat exchangers is suggested, featuring a continuous spiral baffle structure in spiral wound corrugated tubes. In this study, an exploration of the flow field and thermal transfer characteristics within the shell pass was conducted via both experimental and numerical simulation procedures. Discoveries indicate that increasing the entry speed on the shell pass results in a drop in fluid temperature, shrinkage of the low-temperature segment, and escalated resistance within the heat exchanger. At the same time, we investigated the corrugated height and pitch and their impact on comprehensive thermal transfer performance Under the same operating conditions, with an increase in the corrugated height H or a decrease in the corrugated pitch P, compared to the continuous spiral wound circular tubes tube heat exchangers, the friction co-efficient (f) increases by 15%-55%, the Nusselt number (Nu) of the continuous spiral wound corrugated tubes heat exchangers increases by 10%-40%. The overall heat transfer performance improves by 7%-21%.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据