Thermal Performance Study Of A Prototype Multiport Heat Exchanger

  Subhra Kanti Batabyal,  Sohail Bux

Great efforts have been made to investigate the thermal performance and fluid flow behaviour in Minichannel Heat Exchangers (MICHX), however, the examination of air side in a multiport serpentine slab heat exchanger is rare. In the current investigation, experiments were conducted on air heating via a prototype multiport MICHX. Hot DI water at different mass flow rates and a constant inlet temperature of 70°C was passed through the channels. The water sides Reynolds numbers were varied from 255 to 411. The airside Reynolds numbers were calculated based on the free mean stream velocity and varied from 1750 to 5250, while, the air inlet temperatures were in the range of 22.5°C to 34.5°C. The effects of dimensional parameters, such as Reynolds number, Nusselt number, Prandtl number, Brinkman number, and Dean number on the heat transfer performance were investigated. The effect of the serpentine on the enhancement of DI water thermal performance behaviour was studied. Heat transfer correlations were established and compared to the results in the open literature. The objective of the present study is to investigate the heat transfer characteristics of heating the air-side and cooling the liquid-side of a serpentine slab minichannel heat exchanger. The investigation determines the effect of the serpentine bend, the presence of the axial heat conduction, and viscous dissipation in the MICHX. The heat transfer correlation found from this current study is compared to the other available correlations.

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Unique Identification Number - IJEDR1703121
Page Number(s) - 843-862
Pubished in - Volume 5 | Issue 3 | September 2017
DOI (Digital Object Identifier) -   
Publisher - IJEDR (ISSN - 2321-9939)

  Subhra Kanti Batabyal,  Sohail Bux,   "Thermal Performance Study Of A Prototype Multiport Heat Exchanger", International Journal of Engineering Development and Research (IJEDR), ISSN:2321-9939, Volume.5, Issue 3, pp.843-862, September 2017, Available at :http://www.ijedr.org/papers/IJEDR1703121.pdf