Approximation assisted optimization of headers for new generation of air-cooled heat exchangers

被引：15

作者：

Saleh, Khaled ^{[1
]}

Abdelaziz, Omar ^{[2
]}

Ante, Vikrant ^{[1
]}

Radermacher, Reinhard ^{[1
]}

Azarm, Shapour ^{[1
]}

机构：

[1] Univ Maryland, Dept Mech Engn, College Pk, MD 20742 USA

[2] Oak Ridge Natl Lab, Oak Ridge, TN USA

来源：

APPLIED THERMAL ENGINEERING | 2013年 / 61卷 / 02期

关键词：

Heat exchanger header; CFD simulation; Approximation; Optimization; Metamodel; FLOW MALDISTRIBUTION; CONFIGURATION; DISTRIBUTOR; IMPROVEMENT; DESIGN;

D O I：

10.1016/j.applthermaleng.2012.06.007

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

An online multiobjective approximation assisted optimization approach is used to design optimum headers for compact air-cooled heat exchangers. A new CFD model is developed to predict single-phase fluid flow in headers with multiple parallel ports. This CFD model applies the porous jump interior condition in order to reduce the computational domain. In addition, Non Uniform Rational B-Splines (NURBS) are used to define and manipulate the header outer shape with the purpose of reducing the mass flow rate maldistribution. Design optimization is performed using a multiobjective genetic algorithm while the computational cost due to CFD analysis is reduced significantly by applying an online approximation technique. Optimization is performed to reduce both the mass flow rate maldistribution in different ports and the header frontal area with respect to the total heat exchanger frontal area. The optimization results predicted from metamodels are verified using CFD runs with high accuracy of prediction. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：817 / 824

页数：8

共 41 条

[11] Constructal theory of generation of configuration in nature and engineering [J].

Bejan, Adrian ;

Lorente, Sylvie .

JOURNAL OF APPLIED PHYSICS, 2006, 100 (04)

[12]

Cressie N., 1993, Statistics for spatial data

[13]

Deb K., 2010, MULTIOBJECTIVE OPTIM

[14]

Dybvig R.K., 2003, SCHEME PROGRAMMING L, V3rd

[15]

Fang H., 2004, 10 AIAA ISSMO MULT A

[16] Experimental and numerical heat transfer in a plate heat exchanger [J].

Galeazzo, Flavio C. C. ;

Miura, Raquel Y. ;

Gut, Jorge A. W. ;

Tadini, Carmen C. .

CHEMICAL ENGINEERING SCIENCE, 2006, 61 (21) :7133-7138

[17] Correlations of flow maldistribution parameters in an air cooled heat exchanger [J].

Habib, M. A. ;

Ben-Mansour, R. ;

Said, S. A. M. ;

Al-Bagawi, J. J. ;

Al-Mansour, K. M. .

INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN FLUIDS, 2008, 56 (02) :143-165

[18] Acceleration of the convergence speed of evolutionary algorithms using multi-layer neural networks [J].

Hong, YS ;

Lee, H ;

Tahk, MJ .

ENGINEERING OPTIMIZATION, 2003, 35 (01) :91-102

[19] Refrigerant distribution in minichannel evaporator manifolds [J].

Hwang, Yunho ;

Jin, Dae-Hyun ;

Radermacher, Reinhard .

HVAC&R RESEARCH, 2007, 13 (04) :543-555

[20] Effects of distributor configuration on flow maldistribution in plate-fin heat exchangers [J].

Jiao, A ;

Baek, S .

HEAT TRANSFER ENGINEERING, 2005, 26 (04) :19-25

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