| 加热器端差对再热机组热经济性影响的精确计算模型 |
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| 引用本文： | 李勇,郑峰,林淑胜. 加热器端差对再热机组热经济性影响的精确计算模型[J]. 东北电力学院学报, 2007, 27(4): 31-34 |
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| 作者姓名： | 李勇 郑峰 林淑胜 |
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| 作者单位： | 东北电力大学能源与机械工程学院，沈阳热电厂，烟台龙源电力技术有限公司 |
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| 摘 要： | 以等效热降理论为基础,从热力学第一定律出发,使用工程技术人员易于理解和掌握的热平衡方程,区分加热器布置位置和连接方式,推导了加热器端差对再热机组热经济性影响的精确计算模型,指出等效热降法给出的加热器端差对再热机组热经济性影响的定量分析模型为近似计算模型。
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| 关 键 词： | 热经济性 等效热降 加热器端差 |
| 文章编号： | 1005-2992（2007）04-0031-04 |
| 收稿时间： | 2007-03-20 |
| 修稿时间： | 2007-03-20 |
Precise Calculation Model on the Influence of Terminal Temperature Difference on Thermal Economy of Reheat Unit |
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| LI Yong,ZHENG Feng,LIN Shu-sheng. Precise Calculation Model on the Influence of Terminal Temperature Difference on Thermal Economy of Reheat Unit[J]. Journal of Northeast China Institute of Electric Power Engineering, 2007, 27(4): 31-34 |
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| Authors: | LI Yong ZHENG Feng LIN Shu-sheng |
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| Abstract: | Based on the theory of equivalent enthalpy drop method and first law of thermodynamics,the authors adopt heat balance equation which can be understood and mastered easily by the engineers,distinguish the heater's location and connection model,and propose a precise calculation model of the effect of terminal tem- perature difference on the unit thermal economy.The paper points out that correlative model in equivalent heat drop method is approximated. |
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| Keywords: | Thermal economy Equivalent enthalpy drop method Terminal temperature difference |
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