| 疏水冷却器的热经济性分析 |
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| 引用本文： | 刘强,孟颖超.疏水冷却器的热经济性分析[J].深圳大学学报(理工版),2009,26(4). |
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| 作者姓名： | 刘强 孟颖超 |
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| 作者单位： | 1. 清华大学热科学与动力工程教育部重点实验室,北京,100084
2. 河南省电力勘测设计院,郑州,450007 |
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| 基金项目： | 国家重点基础研究发展计划资助项目 |
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| 摘 要： | 基于热力系统矩阵热平衡方程,建立定功率条件下,疏水冷却器对机组热经济性影响的数学模型.研究加热器不同连接方式,发现热经济性的变化仅与相邻级热耗变换系数、疏水放热量变化幅度及疏水流量相关.运用该模型分别对某N600-16.7/537/537机组和N600-24.2/566/566机组进行计算,结果与热平衡法基本一致,但计算方法较其简捷.
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| 关 键 词： | 热能动力工程 疏水冷却器 热经济性 矩阵法 热耗变换系数 |
Thermal economy analysis for drain cooler of thermodynamic system in power plant |
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| LIU Qiang,MENG Ying-chao.Thermal economy analysis for drain cooler of thermodynamic system in power plant[J].Journal of Shenzhen University(Science &engineering),2009,26(4). |
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| Authors: | LIU Qiang MENG Ying-chao |
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| Abstract: | Based on the matrix equation of thermodynamic system, the mathematical model for the effect of drain cooler on thermal economy of unit was derived under conditions of constant power output. It was found that the change of thermal economy was related to the heat rate transformation coefficient, the change of drain water enthalpy and drain water flow. Compared with the thermal balance method, this model is more convenient for calculation. The N600-16. 7/537/537 unit and N600-24. 2/566/566 unit were analyzed by this model and the results were consistent with that by thermal balance method. |
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| Keywords: | thermal power engineering drain cooler thermal economy matrix method heat rate transformation coefficient |
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