Entropy generation analysis of a mini heat exchanger for heat transfer intensification
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Type
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Journal
Article
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Author
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Dominique
Tarlet
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Author
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Yilin
Fan
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Author
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Stéphane
Roux
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Author
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Lingai
Luo
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URL
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Volume
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53
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Pages
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119-126
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Publication
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Experimental
Thermal and Fluid Science
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Date
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February
2014
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Abstract
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Authors offer a first and second law analysis of the heat transfer characteristics of a mini shell-and-tube heat exchanger equipped with multi-scale distributor/collector. They performed experiments of heat exchanger with or without transverse baffles installed in the shell side under laminar flow conditions. They determined temperature field at the shell side using infrared thermography. They quantified the effect of transverse baffles on the thermal performance and entropy generation of the heat exchanger system. Results revealed that the integration of multi-scale branched distributor and collector guarantees uniform flow distribution among parallel tubes. The installation of baffles provides a locally crossflow and globally countercurrent flow arrangement so that the recirculating, passive zones can be largely eliminated. |
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