Economy analysis on co-combustion with low calorific coal in a 1000MW coal-fired boiler unit

LIANG Xuedong; XIE Kun

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Economy analysis on co-combustion with low calorific coal in a 1000MW coal-fired boiler unit

更新时间：2025-09-28

- Economy analysis on co-combustion with low calorific coal in a 1000MW coal-fired boiler unit
- Thermal Power Generation Vol. 43, Issue 11, Pages: 1-5(2014)
- 作者机构：
  
  1. 华能南京金陵发电有限公司
  2. 大唐南京发电厂
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK227.1
- Published：2014
- 稿件说明：
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LIANG Xuedong, XIE Kun. Economy analysis on co-combustion with low calorific coal in a 1000MW coal-fired boiler unit[J]. Thermal power generation, 2014, 43(11): 1-5.
DOI：

LIANG Xuedong, XIE Kun. Economy analysis on co-combustion with low calorific coal in a 1000MW coal-fired boiler unit[J]. Thermal power generation, 2014, 43(11): 1-5. DOI：

摘要

低热值煤种掺烧对锅炉效率、厂用电率、供电煤耗、污染物排放、检修维护费、堆场热值损失及配煤成本等均有一定的影响

在评估低热值煤掺烧的经济效益时应综合考虑这些因素

以确定综合发电成本和利润。对某电厂的实际计算结果表明

当低热值烟煤与电厂常用煤的标煤差价分别在100、90元/t以上时

每年分别掺烧相当于标煤13.6%、10%比例的低热值烟煤

可能实现综合发电成本的经济性平衡

为电厂带来一定的经济效益。

Abstract

Co-firing with low calorific coal in power plants has a certain effect on boiler efficiency

auxiliary power consumption rate

pollutant emission

maintenance cost

storage yard heat loss

coal blending cost and other indexes.During economic benefit evaluation for low calorific coal mixed burning

the effects of all above factors should be comprehensively considered

to ascertain the comprehensive power generation cost and benefits.The practical calculation for a power plant shows that

when the standard coal price difference between the low calorific bituminous coal and commonly used coal is greater than 100 yuan/t and90yuan/t

co-firing the low calorific bituminous coal with 13.6%and 10% of the standard coal amount can realize economic balance of the power generation cost

respectively.

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