HEAT TRANSFER CRISES OF TWO-PHASE FLOW IN VERTICALLY DOWNWARD BOILING TUBE

Liu Yaoqi; Chen Tingkuan and Chen Xuejun(Xian Jiaotong University; Xian 710049)

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HEAT TRANSFER CRISES OF TWO-PHASE FLOW IN VERTICALLY DOWNWARD BOILING TUBE

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- HEAT TRANSFER CRISES OF TWO-PHASE FLOW IN VERTICALLY DOWNWARD BOILING TUBE
- CIESC Journal Issue 3, (1992)
- 作者机构：
  
  西安交通大学,西安交通大学,西安交通大学西安710049,西安710049,西安,710049
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 June 1992，
  
  Published：25 June 1992
- 稿件说明：
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Liu Yaoqi, Chen Tingkuan and Chen Xuejun(Xian Jiaotong University, Xian 710049). HEAT TRANSFER CRISES OF TWO-PHASE FLOW IN VERTICALLY DOWNWARD BOILING TUBE[J]. CIESC Journal, 1992, (3).
DOI：

Liu Yaoqi, Chen Tingkuan and Chen Xuejun(Xian Jiaotong University, Xian 710049). HEAT TRANSFER CRISES OF TWO-PHASE FLOW IN VERTICALLY DOWNWARD BOILING TUBE[J]. CIESC Journal, 1992, (3). DOI：

摘要

1引言传热恶化有不同的类型，就工程换热设备设计和运行的实际需要来说，人们最关心的是以下几点：（1）传热恶化发生的位置（壁温飞升起始点），一般用。cr来表示；（2）传热恶化发生后壁温飞升的最大值，一般用A儿。。来表示；（3）壁温飞升最大值的位置，一般用K。。。来表示；（4）传热恶化发生后的。mi。。本文着重分析讨论后3个问题。

Abstract

The effects of pressure

mass flow rate and heat flux were studied in detail on the maximum temperature rise of the tube wall and the corresponding steam quality as well as the minimum heat transfer coefficient when heat transfer crises happened. The experimental results showed that these effects were quite great. The prediction correlations for the post dryout heat transfer parameters mentioned above were established. They coincided well with the experimental data obtained in the range of pressures from 5MPa to 18.5MPa

mass flow rates from 800kg/(m2·s) to 2000kg/(m2·s) and inner wall heat fluxes from 320kW/m2 to 700kW/m2.

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