A PREDICTION MODEL FOR RECIRCULATING FLOW AND HEAT TRANSFER IN KETTLE REBOILER TUBE BUNDLE

朱长新; 陈学俊; 张鸣远; 周芳德; 温志敏

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A PREDICTION MODEL FOR RECIRCULATING FLOW AND HEAT TRANSFER IN KETTLE REBOILER TUBE BUNDLE

更新时间：2025-12-16

- A PREDICTION MODEL FOR RECIRCULATING FLOW AND HEAT TRANSFER IN KETTLE REBOILER TUBE BUNDLE
- CIESC Journal Issue 5, (1994)
- 作者机构：
  
  西安交通大学工程热物理所,西安交通大学工程热物理所,西安交通大学工程热物理所,西安交通大学工程热物理所,西安交通大学工程热物理所西安 710049,西安 710049,西安 710049,西安 710049,西安,710049
- 作者简介：
- 基金信息：
- DOI：
  CLC： Q053
- Online First：25 October 1994，
  
  Published：25 October 1994
- 稿件说明：
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朱长新, 陈学俊, 张鸣远, et al. A PREDICTION MODEL FOR RECIRCULATING FLOW AND HEAT TRANSFER IN KETTLE REBOILER TUBE BUNDLE[J]. CIESC Journal, 1994, (5).
DOI：

朱长新, 陈学俊, 张鸣远, et al. A PREDICTION MODEL FOR RECIRCULATING FLOW AND HEAT TRANSFER IN KETTLE REBOILER TUBE BUNDLE[J]. CIESC Journal, 1994, (5). DOI：

摘要

提出了釜式再沸器管束中循环流动换热的分相预报新模型

考虑了管束下部的过冷沸腾及循环液体的侧面引入。与以往的模型相比

本文模型与现有实验数据符合更好。

Abstract

A separated model is developed for the recirculating flow and heat transfer in a kettle reboiler tube bundle. Subcooled boiling at the bottom of the bundle and some recirculating liquid entering the bundle from its sides are considered. Compared with previous models

this model has more reasonable agreement with the experimental results by Cornwell et al. The effects of heat flux

liquid level and subcooled boiling length on the recirculating flow rate and heat transfer coefficient are examined. The height of subcooled fraction of the tube bundle decreases with increasing heat flux. Therefore

the effect of subcooled boiling is outstanding at low and middle heat flux. Owing to the existence of side flow

the recirculating flow rate increases for higher tube rows in the subcooled boiling region

and maintains constant in the saturated boiling region.

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