SIMPLE AND EASY CALCULATION FOR INFLUENCE OF HEATER'S TERMINAL TEMPERATURE DIFFERENCE UPON COAL CONSUMPTION OF 1000 MW UNIT

WANG Fuxing1; TIAN Songfeng2; MA Dongdong2; FANG Lintie2 1.Power Department of Sinopec Tianjin Branch

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SIMPLE AND EASY CALCULATION FOR INFLUENCE OF HEATER'S TERMINAL TEMPERATURE DIFFERENCE UPON COAL CONSUMPTION OF 1000 MW UNIT

Thermal Power Generation Vol. 40, Issue 12, Pages: 13-16(2011)

更新时间：2025-09-28

- SIMPLE AND EASY CALCULATION FOR INFLUENCE OF HEATER'S TERMINAL TEMPERATURE DIFFERENCE UPON COAL CONSUMPTION OF 1000 MW UNIT
- 作者机构：
  
  1. 中石化天津分公司动力部
  2. 华北电力大学电站设备状态监测与控制教育部重点实验室
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK263
- Published：2011
- 稿件说明：
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WANG Fuxing1, TIAN Songfeng2, MA Dongdong2, et al. SIMPLE AND EASY CALCULATION FOR INFLUENCE OF HEATER'S TERMINAL TEMPERATURE DIFFERENCE UPON COAL CONSUMPTION OF 1000 MW UNIT[J]. Thermal Power Generation, 2011, 40(12): 13-16.
DOI：

WANG Fuxing1, TIAN Songfeng2, MA Dongdong2, et al. SIMPLE AND EASY CALCULATION FOR INFLUENCE OF HEATER'S TERMINAL TEMPERATURE DIFFERENCE UPON COAL CONSUMPTION OF 1000 MW UNIT[J]. Thermal Power Generation, 2011, 40(12): 13-16. DOI：

摘要

以小扰动理论为基础

根据热力系统热经济性的基本方程

推导出定流量条件下加热器端差对机组煤耗影响的简易计算模型

并以1 000MW机组为例进行算例分析。结果表明

该模型能准确而快速地评价各级加热器端差变化对机组煤耗的影响

具有通用性。经与等效焓降法比较

计算结果基本一致。

Abstract

Taking the theory of small disturbance as the basis

and based on the basic equation of thermal economic efficiency in the thermodynamic system

a commonly used simple and easy calculation model has been deducted for the influence of heater's terminal temperature difference upon the coal consumption of unit under comstant flow rate condition.Taking a 1000 MW unit as example

the calculated result has been analysed

it shows that the said model can accurately and rapidly evaluate the influence of terminal temperature difference variation concerning the heater in each stage upon the coal consumption of said unit.The above-mentioned model boasts universality

compared with the equivalent enthalpy drop method

the calculated results are basically identical.

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