A design method for rectangular microchannel counter flow heat exchangers

被引：12
|
作者：
Saha, Sandip K. [1 ]
Baelmans, Martine [2 ]
机构：
[1] Indian Inst Technol, Dept Mech Engn, Bombay 400076, Maharashtra, India
[2] Katholieke Univ Leuven, Dept Mech Engn, Div Appl Mech & Energy Convers, B-3001 Heverlee, Belgium
来源：
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2014年 / 74卷
关键词：
Design optimization; Longitudinal heat conduction; Counter-flow; Micro; Rectangular channel; Heat exchanger; OPTIMIZATION; CONDUCTION; DUCTS; SHAPE;
D O I：
10.1016/j.ijheatmasstransfer.2014.02.063
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
This paper presents a method for designing rectangular microchannel counter flow heat exchangers. The adopted methodology is based on two models: a one-dimensional model and a CFD model. A one-dimensional model for parallel plate micro heat exchangers is adopted to adjust the geometries of the rectangular microchannel counter flow heat exchanger. To this end a hydro-dynamically and thermally equivalent parallel plate heat exchanger is used. A more accurate CFD model serves to fit the parameters of the one-dimensional model. The related correction factors are presented for a range of pressure drops and axial conduction parameters. The present study provides quantitative data for the optimal plate dimensions and resulting maximal power density of a gas gas rectangular channel counter flow micro heat exchanger with effectiveness varied between 0.6 and 1. (C) 2014 Elsevier Ltd. All rights reserved.
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页码：1 / 12
页数：12
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