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Journal of Enhanced Heat Transfer
Импакт фактор: 0.562 5-летний Импакт фактор: 0.605 SJR: 0.175 SNIP: 0.361 CiteScore™: 0.33

ISSN Печать: 1065-5131
ISSN Онлайн: 1026-5511

Выпуски:
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Journal of Enhanced Heat Transfer

DOI: 10.1615/JEnhHeatTransf.v13.i3.40
pages 245-260

Effects of Surface Properties and Gap Sizes on Boiling Heat Transfer Characteristics in a Micro-Channel Vapor Generator

Yutaka Tasaki
Technology Research Laboratory No. 2, Nissan Research Center, Nissan Motor Co., Ltd., 1, Natsushima-cho, Yokosuka-shi, Kanagawa 237-8523, Japan
Yoshio Utaka
Yokohama National University, Department of Mechanical Engineering, Tokyo Institute of Technology 2-12-1 0-okayama, Meguro-ku Tokyo 152 JAPAN; School of Mechanical Engineering, Tianjin University, 135 Ya Guan Rd. Tianjin Haihe Education Park, Jinnan District, Tianjin300350, China; Key Laboratory of Efficient Utilization of Low and Medium Grade Energy (Tianjin University), Ministry of Education, China

Краткое описание

Improving the boiling heat transfer characteristics in a micro-channel vapor generator has become an important issue because of space limitations in a fuel cell vehicle.
The effects of the wettability and fine structure of the heating surface on heat transfer characteristics in the micro-channel were evaluated experimentally. An attempt was made to deduce the mechanism that would explain how differences in surface properties influence heat transfer characteristics. Under the experimental conditions used in this study, it was confirmed that wettability affects heat transfer characteristics in the micro-channel and that an improvement in wettability leads to more efficient heat transfer.