Real-time calculation model of calorific value of fuel for a coal-fired power plant

LI Jian; ZHANG Binwen

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Real-time calculation model of calorific value of fuel for a coal-fired power plant

Thermal Power Generation Vol. 45, Issue 8, Pages: 49-52(2016)

更新时间：2025-09-28

- Real-time calculation model of calorific value of fuel for a coal-fired power plant
- 作者机构：
  
  华北电力大学控制与计算机工程学院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM621
- Published：2016
- 稿件说明：
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LI Jian, ZHANG Binwen. Real-time calculation model of calorific value of fuel for a coal-fired power plant[J]. Thermal Power Generation, 2016, 45(8): 49-52.
DOI：

LI Jian, ZHANG Binwen. Real-time calculation model of calorific value of fuel for a coal-fired power plant[J]. Thermal Power Generation, 2016, 45(8): 49-52. DOI：

摘要

为解决煤质实时监测困难的问题

需通过测量风量、入炉煤量和氧量信号来构造一种实时的煤质发热量信号。本文通过对国内主要煤种分析数据的统计

首先建立了理论空气量和理论烟气量与煤的发热量之间的线性表达式

然后建立了燃煤发热量的实时计算模型

消除了风量信号的不准确、锅炉漏风以及不完全燃烧等问题;同时

利用某电厂的稳定负荷工况和快速升、降负荷工况进行仿真。结果表明

该计算模型准确性高

计算结果不确定度较小

且计算简便。

Abstract

In order to overcome the difficulty in real-time coal quality monitoring for utility boilers

a calculation model for coal's calorific value was established

on the basis of air volume

coal quantity and oxygencontent signals.By analyzing the main coal quality data

the relationship between theoretical air volume

theoretical gas volume and coal's calorific value was constructed.Then

the real-time calculation model for coal's calorific value was established

to eliminate the influence of inaccurate air volume

air leakage and incomplete combustion.Moreover

simulation on a power plant under steady load condition and fast variable operating conditions was carried out

and the results show that this calculation method is convenience and the uncertainty of the calculation results is relatively low.

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