Numerical Investigation of heat transfer and pressure drop in shell and tube heat exchangers with segmental and helical baffles
Creators
- 1. Department of Mechanical Engineering, Albertian Institute of Science and Technology, Kochi, India
Description
A numerical study focusing on the performance of shell and tube heat exchanger for the different fluid combinations was carried out and the predictions were compared with available experimental data in the literature. The thermal performance of a shell and tube heat exchanger (STHX) was found to be influenced not only by inlet temperature, velocity, baffle size, spacing and count, but also by the direction of flow, nature of fluids in shell/tube, turbulence and the flow induced vibration during the operation. In this work, the influence of fluid properties on the heat transfer rate and the induced pressure drop were predicted for a STHX with baffle and baffle-less configurations. This will enable manufactures to suitably select heat exchangers for different fluid combinations and configurations for obtaining better performance. The work also identifies the configuration of STHX that is effective in transferring heat for fluid combinations such as water, seawater and oil in shell and tube sides.
Files
Numerical Investigation of heat transfer.pdf
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Additional details
References
- K Anand, V K Pravin, and P H Veena. Experimental investigation of shell and tube heat exchanger using bell delaware method. International Journal for Research in Applied Science and Engineering Technology, 2(I): 73–85, 2014.
- Ya-Ping Chen, Wei han Wang, Jia-Feng Wu, and Cong Dong. Experimental investigation on performances of trisection helical baffled heat exchangers for oil/water–water heat transfer. Energy Conversion and Management, 101:460 – 469, 2015.
- Cong Dong, Yaping Chen, and Jiafeng Wu. Comparison of heat transfer performances of helix baffled heat exchangers with different baffle configurations. Chinese Journal of Chemical Engineering, 23(1):255 – 261, 2015.
- WC Driedger. Controlling shell and tube exchangers, volume 75. Gulf Professional Publishing, 1996.
- Wenjing Du, Hongfu wang, and Lin cheg. Effects of shape and quantity of helical baffle on the shell-side heat transfer and flow performance of heat exchangers. Chinese Journal of Chemical Engineering, 22(3):243– 251, 2014.
- Joel H Ferziger and Milovan Peric. Computational methods for fluid dynamics. Springer Science & Business Media, 2012.
- John E Hesselgreaves. Compact heat exchangers: selection, design and operation. Gulf Professional Publishing, 2001.
- B Jayachandriah and K Rajasekhar. Thermal analysis of tubular heat exchangers using ansys. International Journal of Engineering Research, 5013(3):21–25, 2014.
- Wee-Kyong Kim and Thomas Aicher. Experimental investigation of heat transfer in shell-and-tube heat ex-changers without baffles. Korean Journal of Chemical Engineering, 14(2):93–100, 1997.
- Yong-Gang Lei, Ya-Ling He, Rui Li, and Ya-Fu Gao. Effects of baffle inclination angle on flow and heat transfer of a heat exchanger with helical baffles. Chemical Engineering and Processing: Process Intensification, 47(12):2336 – 2345, 2008.