A new method for analyzing heat exchangers-matching of temperature field
文献类型：期刊论文
| 作者 | Wang HuanGuang1,2; Huai XiuLan1 |
| 刊名 | JOURNAL OF THERMAL SCIENCE
 |
| 出版日期 | 2012-10-01 |
| 卷号 | 21期号:5页码:452-458 |
| 关键词 | matching method heat exchanger ratio of heat capacity rate ratio of inherent thermal resistance |
| 英文摘要 | In heat exchangers, the magnitude of Nu of each duct is influenced by the temperature field, since the ratio of heat capacity rate will influence the matching status of the temperature field between contacting ducts, the total heat transfer coefficient is related with the ratio of heat capacity rate. Considering this relationship, a new method for analyzing heat exchanger is proposed - matching of temperature field. First, for a single duct with the temperature field varying exponentially along the flow direction, its Nu is calculated. Then under the hypothesis that the thermal resistance of the wall is negligible, the matching condition was set like this: both the temperature and heat flux are equal for the hot and cold fluids at the wall, so the matching relationship of parameter that describes the temperature field of the hot and cold fluids, was obtained. Finally the relationship between the total Nu and the ratio of heat capacity rate along with the ratio of inherent thermal resistance is obtained. Compared with traditional analyzing methods, the temperature matching method can be used to get the total heat transfer coefficient directly, and also be used for optimization of heat exchanger design. For a parallel flow, the optimal ratio of heat capacity rate is reciprocal to the ratio of inherent thermal resistance, and for a counter flow, the optimal ratio of heat capacity rate is zero or infinity. |
| WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
| 类目[WOS] | Thermodynamics ; Engineering, Mechanical |
| 研究领域[WOS] | Thermodynamics ; Engineering |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000308441800009 |
| 公开日期 | 2015-12-22 |
| 源URL | [http://ir.etp.ac.cn/handle/311046/101534]  |
| 专题 | 工程热物理研究所_中国科学院工程热物理所（论文库）_期刊论文（SCI） |
| 作者单位 | 1.Chinese Acad Sci, Inst Engn Thermophys, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang HuanGuang,Huai XiuLan. A new method for analyzing heat exchangers-matching of temperature field[J]. JOURNAL OF THERMAL SCIENCE,2012,21(5):452-458. |
| APA | Wang HuanGuang,&Huai XiuLan.(2012).A new method for analyzing heat exchangers-matching of temperature field.JOURNAL OF THERMAL SCIENCE,21(5),452-458. |
| MLA | Wang HuanGuang,et al."A new method for analyzing heat exchangers-matching of temperature field".JOURNAL OF THERMAL SCIENCE 21.5(2012):452-458. |
入库方式： OAI收割
来源：工程热物理研究所
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