Theoretical analysis of the thermal performance of a plate heat exchanger at various chevron angles using lithium bromide solution with nanofluid |
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| Affiliation: | 1. Graduate School of Chosun University, Chosun University, Gwangju 501-759, Republic of Korea;2. Department of Mechanical Engineering, Chosun University, Gwangju 501-759, Republic of Korea;1. School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China;2. School of Chemical Engineering and Technology, Xi’an Jiaotong University, Xi’an 710049, China;1. Solar Energy Research Institute (SERI), Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia;2. Department of Air conditioning and Refrigeration, Al-Mustaqbal University College, Babylon, Iraq;3. Departments of Thermofluids, Faculty of Mechanical Engineering, Universiti Teknologi Malaysia, 81310 UTM Skudai, Johor Bahru, Malaysia;1. Department of Mechanical Engineering, Indian School of Mines, Dhanbad 826004, India;2. Department of Mechanical Engineering, Institute of Engineering and Technology, GLA University, Mathura 281406, India |
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| Abstract: | Nanofluids technology has been rapidly developing over the last two decades. In this paper, the performance of a lithium bromide (LiBr) solution with and without nanoparticles in plate heat exchanger (PHE) for various chevron angles and mass flow rates was investigated. As a result, the heat transfer rate and the overall heat transfer coefficient in 60°/60° PHE is over 100% higher than that of 30°/30° PHE, and the effectiveness of the PHE in 60°/60° PHE is about 70% higher than that of 30°/30° PHE. By using nanoparticle in the working fluid, the heat transfer performance can increase significantly. The heat transfer rate of 3 vol.% nanofluids increased about 3–8% compare to that of LiBr solution for all chevron PHEs. Besides, the 60°/60° PHE using 3 vol.% nanofluids produced the largest heat transfer rate and heat exchange effectiveness under given operating conditions. |
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| Keywords: | Nanofluids Chevron plate heat exchanger Heat transfer Effectiveness Nanofluide Echangeur de chaleur à plaques et chevrons Transfert de chaleur Efficacité |
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