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Heat transfer enhancement in pillow-plate type heat exchanger with SCWSCs using an entropy and exergy generation approximation technique

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dc.contributor.author Bhattacharyya, Suvanjan
dc.date.accessioned 2023-10-16T10:35:41Z
dc.date.available 2023-10-16T10:35:41Z
dc.date.issued 2023-10
dc.identifier.uri https://www.sciencedirect.com/science/article/pii/S0735193323003834
dc.identifier.uri http://dspace.bits-pilani.ac.in:8080/xmlui/handle/123456789/12455
dc.description.abstract The design and development of the Pillow-plate heat exchanger (PPHE) are attracting more interest in the research and scientific communities in recent years. In this manuscript, a new investigation is performed to examine the heat transfers and fluid flow characteristics for different streamwise lengths with Staggered Circular Welding Spot Configurations. To analyze the heat transfer and friction factor parameters total of 25 different designs of is considered, 1000 Re 16,000. In addition, to optimizing the exergy efficiency and thermal evaluation factor, some dimensional and non-dimensional thermodynamic and thermal-hydraulic influencers, including thermal and frictional entropy generation, thermal and frictional exergy destruction, Nusselt number, friction factor, Bejan, entropy generation number are calculated by considering the second law efficiency approach based on thermo-dynamics for turbulent single-phase water flow in PPHE as wavy surface using SST transition method and entropy and exergy approximation technique. Based on the computational results obtained, increasing the streamwise lengths with SCWSPs, the ‘elliptical recirculation vortex’ is essential and significantly enhances the thermal performance factor. The maximum exergy and thermal performance factor are improved by 41.58% and 1.54 in the = 0.078 and 0.044 at Re = 1000, respectively. en_US
dc.language.iso en en_US
dc.publisher Elsevier en_US
dc.subject Mechanical Engineering en_US
dc.subject Pillow-plate heat exchanger (PPHE) en_US
dc.subject Entropy generation en_US
dc.subject Frictional entropy generation en_US
dc.subject Exergy en_US
dc.subject Thermal performance factor en_US
dc.title Heat transfer enhancement in pillow-plate type heat exchanger with SCWSCs using an entropy and exergy generation approximation technique en_US
dc.type Article en_US


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