Optimization of fin arrangement and channel configuration in an airfoil fin PCHE for supercritical CO2 cycle

被引：215

作者：

Xu, Xiangyang ^{[1
]}

Ma, Ting ^{[1
]}

Li, Lei ^{[1
]}

Zeng, Min ^{[1
]}

Chen, Yitung ^{[2
]}

Huang, Yanping ^{[3
]}

Wang, Qiuwang ^{[1
]}

机构：

[1] Xi An Jiao Tong Univ, MOE, Key Lab Thermofluid Sci & Engn, Xian 710049, Shaanxi, Peoples R China

[2] Univ Nevada, Dept Mech Engn, Las Vegas, NV 89154 USA

[3] Nucl Power Inst China, CNNC Key Lab Nucl Reactor Thermal Hydraul Technol, Chengdu, Sichuan, Peoples R China

来源：

APPLIED THERMAL ENGINEERING | 2014年 / 70卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Printed circuit heat exchanger; Supercritical CO2; Airfoil fin; Thermal-hydraulic; Structure optimization; CIRCUIT HEAT-EXCHANGER; THERMAL-HYDRAULIC PERFORMANCE; DESIGN;

D O I：

10.1016/j.applthermaleng.2014.05.040

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

As a new type of discontinuous fin, airfoil fin (AFF) can bring a better thermal-hydraulic performance than Zigzag fin and S-shaped fin when applied to PCHE using supercritical CO2 as a working fluid. In this study, the effects of AFF arrangements on heat transfer and flow resistance are investigated. The results show that a sparser staggered arrangement of fins can lead to a better thermal-hydraulic performance in an AFF PCHE and the flow resistance plays a major role in determining the overall performance. It concludes that reducing the flow resistance needs to be considered first in the optimal design of a PCHE using supercritical CO2 as working fluid. Furthermore, a new fin structure (modified AFF) is proposed for flow resistance reduction and is proved to be better than the AFF. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：867 / 875

页数：9

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