Swirl-flow Internal Thermosyphon Boiling Device——Part I, Mechanisms and Performance of Two-phase Flow and Heat transfer

Liu Gaowei; Huang Hongding(Huang Hungting); Sun Ai and Chen Yuanming(Tianjin University; Tianjin)

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Swirl-flow Internal Thermosyphon Boiling Device——Part I, Mechanisms and Performance of Two-phase Flow and Heat transfer

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- Swirl-flow Internal Thermosyphon Boiling Device——Part I, Mechanisms and Performance of Two-phase Flow and Heat transfer
- CIESC Journal Issue 6, (1989)
- 作者机构：
  
  天津大学,天津大学,天津大学,天津大学 ,天津,天津,天津,天津
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 December 1989，
  
  Published：25 December 1989
- 稿件说明：
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Liu Gaowei, Huang Hongding(Huang Hungting), Sun Ai and Chen Yuanming(Tianjin University, et al. Swirl-flow Internal Thermosyphon Boiling Device——Part I, Mechanisms and Performance of Two-phase Flow and Heat transfer[J]. CIESC Journal, 1989, (6).
DOI：

Liu Gaowei, Huang Hongding(Huang Hungting), Sun Ai and Chen Yuanming(Tianjin University, et al. Swirl-flow Internal Thermosyphon Boiling Device——Part I, Mechanisms and Performance of Two-phase Flow and Heat transfer[J]. CIESC Journal, 1989, (6). DOI：

摘要

利用透明膜加热管对内热虹吸式沸腾装置各种螺旋通道内的两相流流型的变化规律、稳定性及传热性能进行观察研究.同时用钢管绕以电阻丝加热

以便能更准确地测量传热系数.实验所用的内热虹吸管模型共有七种不同的几何尺寸

其中五种为螺旋通道

两种为直流环形通道.实验介质为水、乙醇及聚丙烯酰胺水溶液.实验结果用q～G_t和q～(?)的关系来表示.文章讨论了通道的几何形状和尺寸、介质物性等对流体流动及传热性能的影响.

Abstract

Flow patterns

stability and heat transfer characteristices of two-phase flow in the internal thermosyphon boiling device with various helical channels have been visually observed by means of the transparent-film heating tubes. For the purpose of measuring the wall temperature more accurately

copper tuhes heated by resistance coils were used simultaneously. Experiments were carried out in seven models of internal thermosyphon tube with different geometrical dimensions five of them with helical Channel and the other two with straight flow annular channel. The working media were water

ethanol and aqueous solution of polyacrylamide. Experimental results were expressed with the relationships of q-Gt and q-hb

and the influences of channel geometries

media properties on the characteristics of fluid flow and heat transfer were discussed.

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