A Numerical Study of Lewis Factor for Fin-and-tube Heat Exchangers under Dehumidifying Conditions
Lewis factor is an important parameter for heat and mass transfer process at dehumidifying conditions. A numerical model for calculating the Lewis factor and a correlation for engineering calculation are established. The Lewis factor is obtained through the numerical model of heat and mass transfer...
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| Format: | Article |
| Language: | zho |
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Journal of Refrigeration Magazines Agency Co., Ltd.
2012-01-01
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| Series: | Zhileng xuebao |
| Subjects: | |
| Online Access: | http://www.zhilengxuebao.com/thesisDetails#10.3969/j.issn.0253-4339.2012.06.046 |
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| _version_ | 1850233002278256640 |
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| author | Han Weizhe Ding Guoliang Hu Haitao Zhuang Dawei |
| author_facet | Han Weizhe Ding Guoliang Hu Haitao Zhuang Dawei |
| author_sort | Han Weizhe |
| collection | DOAJ |
| description | Lewis factor is an important parameter for heat and mass transfer process at dehumidifying conditions. A numerical model for calculating the Lewis factor and a correlation for engineering calculation are established. The Lewis factor is obtained through the numerical model of heat and mass transfer of air-side including the mass transfer between phases and the latent heat transfer using CFD. The effects of fin-and-tube heat exchanger geometries and working conditions as well as the feasibility of existing heat and mass transfer analogies are analyzed. Also the Lewis factor correlation is established through the numerical results. The heat and mass transfer deviations between numerical model and experimental data are 6.93% and 12.1% respectively. The correlation has relative deviation of 5.52% compared with numerical model. The results show that the obtained correlation has sufficient accuracy and applicability instead of numerical model. |
| format | Article |
| id | doaj-art-84d8a5fb3104456f9016eda862ea63e4 |
| institution | OA Journals |
| issn | 0253-4339 |
| language | zho |
| publishDate | 2012-01-01 |
| publisher | Journal of Refrigeration Magazines Agency Co., Ltd. |
| record_format | Article |
| series | Zhileng xuebao |
| spelling | doaj-art-84d8a5fb3104456f9016eda862ea63e42025-08-20T02:03:01ZzhoJournal of Refrigeration Magazines Agency Co., Ltd.Zhileng xuebao0253-43392012-01-013366518851A Numerical Study of Lewis Factor for Fin-and-tube Heat Exchangers under Dehumidifying ConditionsHan WeizheDing GuoliangHu HaitaoZhuang DaweiLewis factor is an important parameter for heat and mass transfer process at dehumidifying conditions. A numerical model for calculating the Lewis factor and a correlation for engineering calculation are established. The Lewis factor is obtained through the numerical model of heat and mass transfer of air-side including the mass transfer between phases and the latent heat transfer using CFD. The effects of fin-and-tube heat exchanger geometries and working conditions as well as the feasibility of existing heat and mass transfer analogies are analyzed. Also the Lewis factor correlation is established through the numerical results. The heat and mass transfer deviations between numerical model and experimental data are 6.93% and 12.1% respectively. The correlation has relative deviation of 5.52% compared with numerical model. The results show that the obtained correlation has sufficient accuracy and applicability instead of numerical model.http://www.zhilengxuebao.com/thesisDetails#10.3969/j.issn.0253-4339.2012.06.046pyrologylewis factornumerical simulationheat and mass transferanalogy relationshipfin-and-tube heat exchangers |
| spellingShingle | Han Weizhe Ding Guoliang Hu Haitao Zhuang Dawei A Numerical Study of Lewis Factor for Fin-and-tube Heat Exchangers under Dehumidifying Conditions Zhileng xuebao pyrology lewis factor numerical simulation heat and mass transfer analogy relationship fin-and-tube heat exchangers |
| title | A Numerical Study of Lewis Factor for Fin-and-tube Heat Exchangers under Dehumidifying Conditions |
| title_full | A Numerical Study of Lewis Factor for Fin-and-tube Heat Exchangers under Dehumidifying Conditions |
| title_fullStr | A Numerical Study of Lewis Factor for Fin-and-tube Heat Exchangers under Dehumidifying Conditions |
| title_full_unstemmed | A Numerical Study of Lewis Factor for Fin-and-tube Heat Exchangers under Dehumidifying Conditions |
| title_short | A Numerical Study of Lewis Factor for Fin-and-tube Heat Exchangers under Dehumidifying Conditions |
| title_sort | numerical study of lewis factor for fin and tube heat exchangers under dehumidifying conditions |
| topic | pyrology lewis factor numerical simulation heat and mass transfer analogy relationship fin-and-tube heat exchangers |
| url | http://www.zhilengxuebao.com/thesisDetails#10.3969/j.issn.0253-4339.2012.06.046 |
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