超音速汽-液两相流升压过程中两相温差的实验研究  

Experimental Research on Temperature Difference between two Phase Flow in Steam Injector

作　　者：刘继平[1] 严俊杰[1] 邢秦安[1] 陈国慧[1] 林万超[1] 

机构地区：[1]西安交通大学动力工程多相流国家重点实验室,710049

出　　处：《核动力工程》2004年第2期109-112,共4页Nuclear Power Engineering

基　　金：国家自然科学基金资助项目(50106010)

摘　　要：对超音速汽-液两相流升压加热装置混合腔内汽-液两相温差的变化规律进行了初步实验研究。研究表明,由于汽-液两相流直接接触换热过程存在热阻,两相之间存在明显的温差。该温差随引射率增加而增加,但当引射率大于某一数值后则基本不变;在某一临界的质量流速下该温差达到其最小值。这些结果具有较大的理论和应用价值。A primary experimental research on the temperature difference between the phases is performed in the supersonic steam and liquid two phase flow in the steam inject. As the thermal resistance in the direct contact heat transfer between steam and cool water, there exists obviously the value of temperature difference. It increases with the flow ratio of water to steam, but keeps constant while the flow ratio is greater than a specific value. It reaches its minimum value at a critical mass flow rate. The results are both theoretically and practically valuable.

关 键 词：汽一液两相流 超音速 凝结换热 传热温差 

分 类 号：TK2[动力工程及工程热物理—动力机械及工程]