NUCLEATE POOL BOILING OF SINTERED COATED POROUS SURFACES WITH DIELECTRIC LIQUID, HFE-7200

Sajjad Uzair; Kumar Abhishek; Wang Chi-Chuan

首页> 外文期刊>Journal of enhanced heat transfer: Theory and application in high performance heat and mass transfer >NUCLEATE POOL BOILING OF SINTERED COATED POROUS SURFACES WITH DIELECTRIC LIQUID, HFE-7200

【24h】

NUCLEATE POOL BOILING OF SINTERED COATED POROUS SURFACES WITH DIELECTRIC LIQUID, HFE-7200

机译：NUCLEATE POOL BOILING OF SINTERED COATED POROUS SURFACES WITH DIELECTRIC LIQUID, HFE-7200

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相关主题

摘要

The present study reports a substantial enhancement mechanism by optimizing the morphological parameters of sintered Cu/Ni alloy surfaces. An increase in the nucleation site densities of sintered surfaces by controlling the average surface roughness, porosity, particle diameter, and coating thickness yielded substantial augmentation in pool boiling of a highly wetting liquid. For instance, increasing the surface roughness of a sintered coated surface (sample B1) by 24.54 mu m and reducing the particle diameter by 11.2 mu m, porosity by 39%, coating thickness by 0.27, and pore radius by 0.31 mm resulted in an increase of more than 6.66x in heat transfer over the entire range of investigated heat fluxes. The other tested sintered surfaces (B2, B3, and B4) offered augmentations by 2.52x, 4.87x, and 2.17x, respectively. This substantial enhancement can be attributed to the large nucleation site densities. In addition, pool boiling testing for more than 80 hours showed no heat transfer performance degradation. To understand the performance and mechanisms underlying this substantial enhancement, the authors compared the surface morphology of these sintered surfaces with smooth polished, sandblasted, and sintered surfaces having different degrees of roughness under saturated nucleate pool boiling of a dielectric liquid (HFE-7200) through scanning electron microscopy. The use of sintering technology represents a potential approach to fabricating highly efficient and high heat flux boiling surfaces for dielectric and other highly wetting liquids.

著录项

来源
《Journal of enhanced heat transfer: Theory and application in high performance heat and mass transfer》 |2020年第8期|767-784|共18页
作者
Sajjad Uzair; Kumar Abhishek; Wang Chi-Chuan;
展开▼
作者单位

Natl Chiao Tung Univ, Dept Mech Engn, 1001 Univ Rd, Hsinchu 300, Taiwan;

展开▼
收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种英语
中图分类热力工程、热机;
关键词
pool boiling; dielectric and highly wetting liquids; high-speed imaging; boiling initiation; enhanced heat transfer;

NUCLEATE POOL BOILING OF SINTERED COATED POROUS SURFACES WITH DIELECTRIC LIQUID, HFE-7200

摘要

著录项

相关主题

期刊订阅