Experimental and numerical studies on the thermal-hydraulic performance of a novel airfoil fins printed circuit heat exchanger

之字形的 努塞尔数 材料科学 热交换器 压力降 复合材料 机械 热力学 湍流 雷诺数 几何学 物理 数学
作者
Zengxiao Han,Xinying Cui,Jiangfeng Guo,Haiyan Zhang,Jingzhi Zhou,Keyong Cheng,Huzhong Zhang,Xiulan Huai
出处
期刊:International Journal of Heat and Mass Transfer [Elsevier BV]
卷期号:217: 124655-124655 被引量:7
标识
DOI:10.1016/j.ijheatmasstransfer.2023.124655
摘要

The novel airfoil fins (AFFs) printed circuit heat exchanger (PCHE) has excellent thermal-hydraulic performance, while experimental investigations about this PCHE are few. The overall thermal-hydraulic performance of the novel AFFs PCHE is tested in this study and compared with that of the straight channels PCHE and the zigzag channels PCHE under identical experimental conditions. The mechanisms of the performance difference among the three PCHEs are numerically analysed. The new Nusselt number (Nu) and Fanning friction factor (f) correlations of supercritical CO2 in the novel AFFs PCHE are proposed. The results indicate that the overall heat transfer coefficient of the novel AFFs PCHE is higher than that of the straight channels PCHE, while the pressure drop of the novel AFFs PCHE is lower than that of the zigzag channels PCHE. The performance evaluation criteria (PEC) of the novel AFFs PCHE is 6.6–15.5% higher than that of the straight channels PCHE and is 12.8–27.8% higher than that of the zigzag channels PCHE, which indicates that the comprehensive performance of the novel AFFs PCHE is the best. The relative errors between the Nu and f predicted by the new thermal-hydraulic correlations and the Nu and f calculated from the experimental and numerical data are within ±20%. The correlations obtained in this work are useful to design and optimize the novel AFFs PCHE.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
1秒前
田様应助陶醉小笼包采纳,获得10
1秒前
1秒前
NexusExplorer应助猪猪hero采纳,获得10
1秒前
2秒前
2秒前
2秒前
林慕发布了新的文献求助10
3秒前
Active发布了新的文献求助10
3秒前
whyee完成签到,获得积分10
3秒前
szc-2000发布了新的文献求助10
4秒前
Jourmore完成签到,获得积分10
4秒前
4秒前
Zu发布了新的文献求助10
5秒前
汉堡包应助ly采纳,获得10
5秒前
丘比特应助yly采纳,获得10
5秒前
Olivergaga发布了新的文献求助10
5秒前
含蓄绿兰发布了新的文献求助10
6秒前
7秒前
Gengar发布了新的文献求助10
7秒前
7秒前
john发布了新的文献求助10
8秒前
kelakola完成签到,获得积分10
8秒前
小绵羊发布了新的文献求助10
8秒前
情怀应助窝窝头采纳,获得10
8秒前
流年发布了新的文献求助10
9秒前
liukee发布了新的文献求助10
9秒前
a_发布了新的文献求助10
10秒前
小鱼完成签到,获得积分10
10秒前
nm发布了新的文献求助10
10秒前
星辰大海应助zhu采纳,获得10
11秒前
12秒前
12秒前
Ava应助听话的画板采纳,获得10
13秒前
wang_qi发布了新的文献求助10
13秒前
ff完成签到,获得积分20
13秒前
wanci应助愤怒的小鸽子采纳,获得10
13秒前
13秒前
DDM发布了新的文献求助10
13秒前
深情安青应助小鱼采纳,获得10
14秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
Technical Brochure TB 814: LPIT applications in HV gas insulated switchgear 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
Picture Books with Same-sex Parented Families: Unintentional Censorship 500
Nucleophilic substitution in azasydnone-modified dinitroanisoles 500
不知道标题是什么 500
A Preliminary Study on Correlation Between Independent Components of Facial Thermal Images and Subjective Assessment of Chronic Stress 500
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3970632
求助须知:如何正确求助?哪些是违规求助? 3515261
关于积分的说明 11177794
捐赠科研通 3250448
什么是DOI,文献DOI怎么找? 1795314
邀请新用户注册赠送积分活动 875781
科研通“疑难数据库(出版商)”最低求助积分说明 805073