Session: K20-03: APPLICATIONS OF COMPUTATIONAL HEAT TRANSFER I

Paper Number: 130564

130564 - Effectiveness of Multi Baffles With Trefoils on the Performance of Shell and Tube Heat Exchanger 

Abstract: 

The design and analysis of shell and tube heat exchangers are essential for efficient heat transfer in various industrial applications. This study focuses on investigating the performance of a shell and tube heat exchanger using multibaffles with four different trefoil geometries, i.e., rectangular, square, triangular and hexagonal shapes. The objective of this research is to optimize the heat transfer efficiency by examining the effects of these multi-baffle geometries on the performance of the heat exchanger. Computational fluid dynamics (CFD) simulations and theoretical calculations are employed to evaluate the thermal and hydraulic performance of each geometry. CFD simulations are conducted to analyze the flow patterns, pressure drop, and heat transfer characteristics for each geometry. The effectiveness of the heat exchanger and the overall heat transfer coefficient are calculated to compare the performance of different configurations. The results obtained from the simulations and calculations provide valuable insights into the influence of different trefoiled baffle geometries on the heat exchanger’s performance. The findings indicate that each geometry has its unique impact on the heat transfer rate, pressure drop, and overall efficiency of the heat exchanger. The trefoil baffles exhibit improved heat transfer performance with hexagonal trefoil results in higher heat transfer while triangular baffles result in lower pressure drops. This research enhances our understanding of the relationship between multi-baffle geometries on the performance of shell and tube heat exchangers. The findings can be utilized to optimize the design and selection of baffle configurations based on specific industrial requirements, aiming for improved heat transfer efficiency and reduced energy consumption. Future research can explore additional multibaffle geometries and investigate the effects of other operating parameters on heat exchanger performance to further enhance its design and performance.

Presenting Author: Wei Li Zhejiang University

Presenting Author Biography: Wei Li, Ph.D., Professor and ASME Fellow. He graduated from Xi'an Jiaotong University with a bachelor degree in refrigeration technology. In 1998, he received his Ph.D with Professor Ralph Webb, an international authoritative scholar in Pennsylvania State University. In 2004, he was awarded the Distinguished Contribution by the ASHRAE Heat Transfer Forum of the University of Maryland School of Mechanical Engineering. In 2006, he joined the Department of Energy Engineering in Zhejiang University as a full-time professor. He was one of fifty members of the Professional Executive Committee of the Heat Transfer Society of China (2009-2020), He served as associate editors for Journal of Enhanced Heat Transfer (2007-2016), ASME Journal of Thermal Sciences and Engineering Applications (2006-2019), ASME Journal of Solar Energy Engineering (2019-2020), ASME Open J. Engineering (Present), and ASME Journal of Electronic Packaging (Present). As the P.I., he took charge over the National 863 Program, the National Natural Science Foundation's major international cooperation project National Natural Science Foundation Project, National Science and Technology Support Program Subproject, Zhejiang Natural Science Key Fund Project, and Enterprise-funded Technology R&D Project and so on; He has been working on a project “Study on Mechanism of Two-phase Flow on Micro- and Nano-Scale Heat Exchange Surface” (National Natural Science Foundation of China, 2021-2024).

Authors:

Farhad Ali National University of Sciences and Technology
Tariq Amin Khan National University of Sciences and Technology
Zahid Ahmad Qureshi National University of Sciences and Technology
Muhammad Muzafar National University of Sciences and Technology
Wei Li Zhejiang University