Optimization of wavy direct absorber solar collector (WDASC) using Al2O3-water nanofluid and RSM analysis

被引：113

作者：

Hatami, M. ^{[1
]}

Jing, D. ^{[2
]}

机构：

[1] Esfarayen Univ Technol, Dept Mech Engn, Esfarayen, North Khorasan, Iran

[2] Xi An Jiao Tong Univ, Int Res Ctr Renewable Energy, State Key Lab Multiphase Flow Power Engn, Xian 710049, Shaanxi, Peoples R China

来源：

APPLIED THERMAL ENGINEERING | 2017年 / 121卷

基金：

中国国家自然科学基金;

关键词：

WDASC; Nanofluid; FIexPDE; Nusselt number; FEM; NON-NEWTONIAN NANOFLUID; NATURAL-CONVECTION; HEAT-TRANSFER; REFRIGERATION EFFICIENCY; ENTROPY GENERATION; MIXED CONVECTION; FDLBM SIMULATION; FLOW-ANALYSIS; POROUS FINS; ENCLOSURE;

D O I：

10.1016/j.applthermaleng.2017.04.137

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

In this paper, the best wavy profile for the bottom plate of a wavy nanofluid-based direct absorber solar collector (WDASC) is obtained by numerical and statistical methods. For this aim, thermal performance of a WDASC is evaluated by finite element method (FEM) using FIexPDE commercial package software and Al2O3-water nanofluid is considered as the working fluid in the collector. It is considered that bottom wavy plate remain in a constant temperature while the top flat plate is in constant heat flux due to solar radiation and the sides wall are insulated. To find the best wavy profile for the bottom plate, 9 different cases proposed by CCD are designed and by response surface method (RSM) analysis the best profile is introduced. Results show that the best case involves minimum possible wave amplitude (A(m)) in average wave numbers (lambda) for the wavy wall. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：1040 / 1050

页数：11

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