マイクロチャネル型蒸発器における表面性状の沸騰伝熱特性に及ぼす影響(熱工学,内燃機関,動力など)

概要

論文の詳細を見る
The reformer fuel cell vehicle requires high heat exchange efficiency and low heat capacity to meet powertrain requirements for quick response and compactness. The use of a micro-channel type of vapor generator for the reformer is one possible approach to meeting these requirements. However, as reported in previous studies, the characteristics of evaporation in the micro-channel are completely different from those of poll boiling. The effects of wettability of heating surface on heat transfer characteristics in the micro channel were experimentally evaluated and 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 has an effect on heat transfer characteristics in the micro channel and that an improvement in wettability leads to more efficient heat transfer characteristics.
社団法人日本機械学会の論文
2004-03-25