Temperature distribution calculation for a shell-and-tube condenser
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Temperature distribution calculation for a shell-and-tube condenser
Thermal Power GenerationVol. 43, Issue 6, Pages: 77-80(2014)
作者机构:
1. 华东理工大学机械与动力工程学院
2. 中国科学院广州能源研究所
作者简介:
基金信息:
DOI:
CLC:TQ051.5
Published:2014
稿件说明:
移动端阅览
ZHU Hui, XU Guangdi, ZHOU Guoyan, et al. Temperature distribution calculation for a shell-and-tube condenser[J]. Thermal power generation, 2014, 43(6): 77-80.
DOI:
ZHU Hui, XU Guangdi, ZHOU Guoyan, et al. Temperature distribution calculation for a shell-and-tube condenser[J]. Thermal power generation, 2014, 43(6): 77-80.DOI:
Temperature distribution calculation for a shell-and-tube condenser
摘要
基于无相变温度分布计算方法
根据专业物性软件或物性数据库得到冷凝曲线
分别拟合得到焓值-温度及气相分率-温度关联式
提出了一种改进的冷凝器温度分布计算模型
通过迭代计算得到温度分布。将该计算模型应用于管程冷凝和壳程冷凝的温度分布计算
其结果与美国传热研究公司的冷凝器设计计算软件(HTRI)计算结果的误差均在6%以内
验证了该计算模型的可行性和准确性。
Abstract
On the basis of calculation method for temperature distribution with no phase change
the condensing curves searched from professional physical property software or physical property data base were fitted to obtain the correlation equations of enthalpy-temperature and gas phase fraction-temperature.Then an improved calculation model for temperature distribution in condensers was proposed
which can obtain the temperature distribution through iterative calculation.Finally
this model was applied in temperature distribution calculation for shell side condensing and tube side condensing.Compared with the results calculated by the HTRI software under the same conditions
the results by this method has an error within 6%
which proves that this computation model is feasible and accurate.