scholarly journals Numerical Investigation On Fluid Flow of Protruding Branching Duct in a Dividing Junction of a Minichannel Heat Exchanger

2021 ◽  
Author(s):  
M. Settati ◽  
C. Oliet ◽  
A. Oliva
Keyword(s):  
Fluid Flow ◽  
Heat Exchanger ◽  
Numerical Investigation ◽  
Minichannel Heat Exchanger

Numerical investigation of heat transfer and fluid flow in plate heat exchanger using nanofluids

2014 ◽  
Vol 85 ◽  
pp. 93-103 ◽  
Author(s):  
Arun Kumar Tiwari ◽  
Pradyumna Ghosh ◽  
Jahar Sarkar ◽  
Harshit Dahiya ◽  
Jigar Parekh
Keyword(s):  
Heat Transfer ◽  
Fluid Flow ◽  
Heat Exchanger ◽  
Numerical Investigation ◽  
Plate Heat Exchanger ◽  
Plate Heat

Numerical Investigation and Thermodynamic Analysis on a Novel Regular Hexagonal Plate Heat Exchanger

2010 ◽  
Author(s):  
Wenjing Du ◽  
Fei Wang ◽  
Gongming Xin ◽  
Shihu Zhang ◽  
Lin Cheng
Keyword(s):  
Heat Transfer ◽  
Fluid Flow ◽  
Heat Exchanger ◽  
Numerical Investigation ◽  
Thermodynamic Analysis ◽  
Entropy Generation ◽  
Plate Heat Exchanger ◽  
Working Fluid ◽  
Plate Heat ◽  
Hexagonal Plate

In conventional Plate Heat Exchangers (PHEs), a good heat transfer performance is usually obtained at the cost of much pumping power consumption. In order to address this dilemma, a novel Regular Hexagonal Plate Heat Exchanger (RHPHE) is proposed in this paper. Specially-shaped spherical ribs and quasi-spiral flow paths are designed on plates with the purpose of achieving a best trade-off between the heat transfer and fluid flow performance. Because of its regular hexagonal structure with 3 inlets and 3 outlets, three or at least two kinds of fluids with different temperatures can exchange heat in a single set of heat exchanger. It is an innovation that multiple fluids heat transfer in a PHE without the assistance of supplementary baffles. Numerical investigation is carried out on the RHPHE and water is the working fluid. The heat transfer and flow performance of the RHPHE in a series of working conditions are investigated. Results show that heat transfer coefficient per unit pressure drop of the RHPHE is much better than that of the widely accepted PHE with 60° chevron corrugations. Also studied is the influence of various combinations of inlet and outlet positions on heat transfer and fluid flow performance. For the thermodynamic analysis, the entropy generation caused by heat conduction under finite temperature difference and fluid friction is obtained numerically. The variation of the entropy generation number with respect to the Reynolds number is depicted, which provides reference for the future optimization design of the RHPHE.

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