Experimental and Numerical Study on Hydraulic Performance of Chevron Brazed Plate Heat Exchanger at Low Reynolds Number

Few experiments have been performed to investigate the hydraulic performance in a chevron brazed plate heat exchanger (BPHE) with the narrow channel at lower Reynolds number. The hydraulic characteristics of seven types of chevron BPHEs were investigated experimentally and numerical simulation revea...

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Bibliographic Details
Published in:Processes 2020-09, Vol.8 (9), p.1076
Main Authors: Zhong, Yi, Deng, Kai, Zhao, Shenglang, Hu, Jinlin, Zhong, Yingjie, Li, Qingyong, Wu, Zenan, Lu, Zhiming, Wen, Qing
Format: Article
Language:English
Subjects:
Computer simulation
Correlation
Flow velocity
Fluid flow
Fluids
Friction
Friction factor
Heat exchangers
Heat transfer
Hydraulics
Mathematical models
Plate heat exchangers
Power law
Pressure drop
Reynolds number
Simulation
Viscosity
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Summary:Few experiments have been performed to investigate the hydraulic performance in a chevron brazed plate heat exchanger (BPHE) with the narrow channel at lower Reynolds number. The hydraulic characteristics of seven types of chevron BPHEs were investigated experimentally and numerical simulation revealed the effects of structural parameters on hydraulic performances. The correlations between friction factor f and Re were fitted out based on more than 500 sets of pressure drop data. The research results show that there is a power-law between f and Re; which has a similar trend but a different amplitude for different plates, and the exponent of the power-law could be approximate to a constant. Numerical results show that the pressure drop Δp is positively correlated with the corrugated angle and spacing, however, negatively correlated with the corrugated height. Research on the hydraulic performance is significant for the optimal design of BPHE.
ISSN:2227-9717
2227-9717
DOI:10.3390/pr8091076