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eISSN: 2349-5162

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Enhancement of heat transfer rate in double pipe heat exchanger by shot blasting the inner tube

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Heat transfer rate in heat exchangers are being researched till date with various methods. In this paper, a double pipe heat exchanger has been designed and fabricated with a 1 m long copper pipe as inner pipe and 1 m long stainless steel pipe as outer pipe. The experimental analysis is conducted by passing hot water in the inner tube and the cold water in the annulus. The experiment is performed with counter flow configuration under different mass flow rates. The process of shot blasting is used to increase the roughness of the outer surface of the inner pipe, thereby the increasing the rate of heat transfer. Experiment were performed with the designed heat exchanger with and without the shot blasted inner tube. So, this paper has studied the performance of double pipe without taking into account the pressure drop[4] with and without the shot blasted inner tube.

Key Words

Heat transfer rate, double pipe heat exchanger, counter flow, shot blasting.

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"Enhancement of heat transfer rate in double pipe heat exchanger by shot blasting the inner tube ", International Journal of Emerging Technologies and Innovative Research ( | UGC and issn Approved), ISSN:2349-5162, Vol.4, Issue 4, page no. pp40-46, April-2017, Available at : &

Publication Details

Published Paper ID: JETIR1704011
Registration ID: 170157
Published In: Volume 4 | Issue 4 | Year April-2017
DOI (Digital Object Identifier):
Page No: 40-46
ISSN Number: 2349-5162

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UGC and ISSN Approved Journal | Call For Paper
(Volume 5 | Issue 2 | February 2018 |Impact factor 5.87)

Call For Paper | Volume 5 | Issue 2 | Impact factor 5.87

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  • » Paper Submission Till: 29 February 2018.
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  • » Paper Publish:Within 02-07 Days after submitting the all documents.
  • » Frequency: Monthly (12 issue Annually)
  • » Journal Type : Open Access
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