Passive Heat Transfer Augmentation Methods in a Circular Tube: A Review |
Author(s): |
| Sumit S. Kalmegh , Government College of Engineering, Amravati; Pawan A. Sawarkar, Government College of Engineering, Amravati; Pramod R. Pachghare, Government College of Engineering, Amravati |
Keywords: |
| Augmentation, Heat exchanger tube, inserts Passive heat transfer |
Abstract |
|
The present paper is a review of the passive heat transfer augmentation in circular tubes used in the recent past and these techniques will be useful to designers while implementing in heat exchangers. Passive techniques, generally uses surface or geometrical modification to the flow channel by incorporating inserts or additional devices to increase the heat transfer rate.As the manufacturing process of insert is simple and cheap, so these techniques can be easily employed in an existing heat exchanger. Inserts in a heat exchanger tube generates the swirls, which directs fluid in the Centre towards the heated wall and fluid near the heated wall towards Centre. This phenomenon results fluid flowing in a curvilinear path, which promotes mixing and increase in heat transfer rate. |
Other Details |
|
Paper ID: IJSRDV2I11151 Published in: Volume : 2, Issue : 11 Publication Date: 01/02/2015 Page(s): 230-233 |
Article Preview |
|
|
|
|
