Study the Effect of Single Segmental Baffle cut on Overall Heat Transfer Coefficient in Shell and Tube Heat Exchanger
Er. Satvirpal Singh, North-West Institute of Engg. And Tech., Dhudike, Moga, Punjab, India; Er. Kulwinder Singh Brar ,North-West Institute of Engg. And Tech., Dhudike, Moga, Punjab, India; Er. Didar Singh ,Anand College of Engg. And Mgmt., Kapurthala; Er. Karanjeet Singh ,North-West Institute of Engg. And Tech., Dhudike, Moga, Punjab, India
Shell and Tube Heat Exchanger, Baffle, Segmental Baffle, Helical Baffle, Overall Performance
To figure out the best baffle cut to obtain the maximum overall heat transfer coefficient for the better performance of shell and tube heat exchanger. Methods: To identify the best relation between the baffle cut and overall heat transfer coefficient, six different baffle cut varies from 15% to 40% were taken at the same mass of fluid. To analyze thermal design and overall heat transfer coefficient HTRI was used. To find out the relation between the baffle cut to overall heat transfer coefficient, we generated 2d profile corresponding to length and 3d profile for local heat transfer coefficient. We compared all six design variations to analyze the variation in overall heat transfer coefficient. After comparison of all six variations we figured out optimum relationship between Baffle cut and Overall Heat Transfer Coefficient. Result shows that at a particular cut the rate of heat transfer is the maximum. We found that 25% baffle cut is the optimum cut for single segmental baffle, this provides best combination of shell side velocity and B stream and generate enough turbulence for better heat transfer coefficient. It is also demonstrating good distribution of heat transfer in all localities of heat exchanger. If we decrease the baffle cut, it may increase turbulence but leads to decrease the shell side velocity and B stream, this results the less heat transfer coefficient. Similarly, by increasing the baffle cut there is increase in shell side velocity and B stream, but due to less turbulence less heat transferred. So there is less heat transfer coefficient. Thus for beat the performance of heat exchanger and optimum heat transfer coefficient, there should be best combination of all effective variables
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Paper ID: GRDJEV03I060015
Published in: Volume : 3, Issue : 6
Publication Date: 2018-06-01
Page(s): 1 - 7
Published in: Volume : 3, Issue : 6
Publication Date: 2018-06-01
Page(s): 1 - 7