Heat transfer enhancement of folded helical baffle electric heaters with one-plus-two U-tube units
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- 作者：M.C. Wanga ; Y.P. Chena ; ypgchen@sina.com" class="auth_mail" title="E-mail the corresponding author ; J.F. Wua ; C. Donga ; b
- 关键词：Electric heaters ; Trisection helical baffles ; Folded baffles ; Circumferential overlap ; One-plus-two U-tube units ; Tube surface temperature
- 刊名：Applied Thermal Engineering
- 出版年：2016
- 出版时间：5 June 2016
- 年：2016
- 卷：102
- 期：Complete
- 页码：586-595
- 全文大小：5196 K
文摘
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Folded helical baffle electric heater with one-plus-two U-tube units is a new design.
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CFD and visualization software were adopted to compare flow and heating properties.
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Design and off-design performances of helical and segmental schemes were simulated.
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Flow field and heat transfer coefficient verify better performance of helical heater.
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Temperature homogeneity on tube surfaces of helical electric heater is demonstrated.