A REVIEW ON HEAT TRANSFER ENHANCEMENT DUE TO AIR BUBBLE INJECTION INTO A DOUBLE PIPE HEAT EXCHANGER
Author(s):
Prof. Pushparaj Singh, Jeewan Prakash Chauhan
ISSN:
2349-6002
Cite This Article:
A REVIEW ON HEAT TRANSFER ENHANCEMENT DUE TO AIR BUBBLE INJECTION INTO A DOUBLE PIPE HEAT EXCHANGERInternational Journal of Innovative Research in Technology(www.ijirt.org) ,ISSN: 2349-6002 ,Volume 6 ,Issue 1 ,Page(s):856-860 ,June 2019 ,Available :IJIRT148394_PAPER.pdf
Keywords:
Heat exchanger, double pipe, Air bubble injection, Heat transfer, ANSYS 14.5, Overall heat transfer coefficient, Nusselt number.
Abstract
In recent years, researchers have tried to reduce the size and weight of heat exchangers without reduction of heat transfer rate. Numerous methods have been presented to increase the heat transfer rate and performance of heat exchangers in the past decades. Air bubble injection is one such technique but passive one to enhance the heat transfer rate. Air bubbles are induced to any flowing fluid channels to maximize the heat transfer characteristics of the fluid. As per the different studies, the bubble dynamics creates much impact on the wall skin friction drag. Injecting bubbles in the flowing fluid reduces the density of the liquid that leads to the generation of baroclinic vorticity on larger scale. In present work attempts are made to enhance the heat transfer rate in double pipe heat exchangers by injecting air bubbles. For this a double pipe heat exchanger were used in which a tube is inserted with 12 no. of holes by which air bubbles are injected. Modelling is done using ANSYS.
Article Details
Unique Paper ID: 148394

Publication Volume & Issue: Volume 6, Issue 1

Page(s): 856 - 860
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Last Date 25 December 2019


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