| 火电机组热力系统与设备损分布通用矩阵模型 |
| |
| 引用本文： | 葛斌,张俊礼,殷戈.火电机组热力系统与设备损分布通用矩阵模型[J].东南大学学报(自然科学版),2009,39(5). |
| |
| 作者姓名： | 葛斌 张俊礼 殷戈 |
| |
| 作者单位： | 东南大学能源与环境学院,南京,210096 |
| |
| 摘 要： | 为了揭示系统部件(火用)损分布进而探讨机组节能潜力,在深入分析各部件(火用)流特性的基础上,提出了火电机组热力系统与设备(火用)损分布的通用矩阵模型.将整个热力系统分为5个控制体,针对每一控制体建立质量平衡与(火用)平衡方程,再按各控制体(火用)流方向依序相连各控制体级模型构成机组矩阵模型.与已有的回热系统(火用)损分布矩阵相比,新建模型可量化评价系统中每一过程(或设备)的热力性能,并全面反映系统及各辅助系统的影响.实例结果表明,热力系统中不可逆性主要来源于锅炉,其(火用)损率达50.28%.所建模型准确便捷,适用于各类火电机组;(火用)损分布规律清晰,有利于挖掘各设备(或过程)的节能潜力;可为火电机组优化设计及经济运行提供有效工具.
|
| 关 键 词： | 火电机组 热力系统与设备 (火用)损分布 通用矩阵模型 |
General matrix model of exergy destruction distribution of thermodynamic system and its components for coal-fired power unit |
| |
| Ge Bin,Zhang Junli,Yin Ge.General matrix model of exergy destruction distribution of thermodynamic system and its components for coal-fired power unit[J].Journal of Southeast University(Natural Science Edition),2009,39(5). |
| |
| Authors: | Ge Bin Zhang Junli Yin Ge |
| |
| Institution: | Ge Bin Zhang Junli Yin Ge(School of Energy , Environment,Southeast University,Nanjing 210096,China) |
| |
| Abstract: | To reveal the exergy destruction distribution of components and then to explore the potential energy-saving of unit,on the basis of exergy flow analysis of each component,a general matrix model of exergy destruction distribution of thermodynamic system and its components for the coal-fired power unit is proposed.The entire thermodynamic system is split up into five control volumes,and each control volume model is established by mass balance and exergy balance equations.The control volume models are linked t... |
| |
| Keywords: | coal-fired power unit thermodynamic system and its components exergy destruction distribution general matrix model |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
