| 平行流分隔板管壳式换热器壳侧流场与传热性能 |
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| 引用本文： | 王杨君,邓先和,陈颖,李志武.平行流分隔板管壳式换热器壳侧流场与传热性能[J].化工学报,2004,55(2):275-279. |
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| 作者姓名： | 王杨君 邓先和 陈颖 李志武 |
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| 作者单位： | 华南理工大学教育部传热强化与过程节能重点实验室,广东,广州,510640;华南理工大学教育部传热强化与过程节能重点实验室,广东,广州,510640;华南理工大学教育部传热强化与过程节能重点实验室,广东,广州,510640;华南理工大学教育部传热强化与过程节能重点实验室,广东,广州,510640 |
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| 基金项目： | 国家重点基础研究项目 (No G2 0 0 0 0 2 63 0 1)，教育部重点项目 (No 0 0 10 3 )，广东省重点科技攻关项目(No C12 2 0 3 )~~ |
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| 摘 要： | 引 言在石油、化工、能源、建筑、冶金、轻工、核能、制冷、动力乃至火箭、航天航空等工业领域1] 大量使用各种换热器 ,所以研究开发高性能换热设备提高传热性能是节能增效的重要途径之一 .如图 1(a)所示的单弓形折流板管壳式换热器已经在工业中使用了上百年 ,而且迄今一直是
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| 关 键 词： | 管壳式换热器 强化传热 平行流分隔板 流速分布 |
| 文章编号： | 0438-1157(2004)02-0275-05 |
| 收稿时间： | 2002-12-23 |
| 修稿时间： | 2003-10-17
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FLOW AND HEAT TRANSFER CHARACTERISTICS IN SHELL SIDE OF SHELL-AND-TUBE HEAT EXCHANGERS WITH SEPARATED BAFFLES PARALLEL TO SEGMENTAL BAFFLES |
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| WANG Yangjun,DENG Xianhe,CHEN Ying,LI Zhiwu.FLOW AND HEAT TRANSFER CHARACTERISTICS IN SHELL SIDE OF SHELL-AND-TUBE HEAT EXCHANGERS WITH SEPARATED BAFFLES PARALLEL TO SEGMENTAL BAFFLES[J].Journal of Chemical Industry and Engineering(China),2004,55(2):275-279. |
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| Authors: | WANG Yangjun DENG Xianhe CHEN Ying LI Zhiwu |
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| Abstract: | A shell-and-tube heat exchanger with separated baffles parallel to segmental baffles was proposed, and an investigation on velocity distribution, heat transfer and flow resistance characteristics in the shell side of the proposed heat exchanger and traditional single segmental baffled shell-and-tube heat exchanger was reported. After the experiment, the empirical relations of heat transfer and flow resistance were obtained. The heat transfer enhancement comprehensive evaluation factor η was in the range from 1.15 to 1.20 for Reynolds number (1.25×104—3.35×104). The results indicated that flow field uniformization was enhanced in the shell side of shell-and-tube heat exchangers by two separated baffles parallel to segmental baffles and the performance of heat transfer was improved by controlling the dimension of vortices. The results could be used as reference in further research. |
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| Keywords: | shell-and-tube heat exchangers heat transfer enhancement separated baffles parallel to segmental baffles velocity distribution |
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