太阳能辅助燃煤机组碳捕集系统性能研究及技术经济分析

发布时间：2018-03-04 07:19

本文选题：碳捕集　切入点：烟气余热　出处：《中国电机工程学报》2014年05期 　论文类型：期刊论文

【摘要】：以某电厂600 MW燃煤机组为研究对象,提出利用烟气余热及太阳能热作为燃烧后碳捕集的热源,以机组抽汽作为脱硝系统热源。建立成本模型和热经济学模型;研究产品单位成本、产品单位热经济学成本的构成及分布规律;分析燃料价格和设备投资成本对各组件产品热经济学成本的影响;对集成系统进行了技术经济分析。研究结果表明:影响单位成本的主要因素为燃料成本、组件效率和比不可逆成本;影响热经济学成本的主要因素为比不可逆成本和投资成本;不计及投资成本时,集成系统产品单位热经济学成本比原系统有所降低;影响太阳能集热场及低压省煤器热经济学成本的主要因素为投资成本、比负熵成本和比不可逆成本。参考电站发电成本随CO2排放税收价格的升高而升高,集成系统CO2排放税收升高对发电成本影响不大,CO2售价可弥补部分发电成本的提高。
[Abstract]:Taking a 600MW coal-fired unit in a power plant as the research object, it is proposed that the waste heat of flue gas and solar heat be used as the heat source of carbon capture after combustion, and the unit extraction be used as the heat source of denitrification system. The cost model and thermoeconomic model are established. This paper studies the product unit cost, the composition and distribution of product unit thermoeconomics cost, analyzes the influence of fuel price and equipment investment cost on each component product thermoeconomics cost. The results show that the main factors affecting unit cost are fuel cost, component efficiency and specific irreversible cost, ratio irreversible cost and investment cost are the main factors that affect the cost of thermoeconomics, the main factors affecting the unit cost are the fuel cost, the component efficiency and the specific irreversible cost, and the main factors affecting the thermoeconomics cost are the ratio irreversible cost and the investment cost. When the investment cost is not taken into account, the unit thermoeconomics cost of the integrated system product is lower than that of the original system, and the main factor affecting the thermal economics cost of solar energy collector and low-pressure economizer is the investment cost. The cost of power generation of reference power station increases with the increase of tax price of CO2 emission. The increase of CO2 emission tax of integrated system has little effect on the cost of power generation. The price of CO _ 2 can compensate for the increase of the cost of power generation.
【作者单位】：电站设备状态监测与控制教育部重点实验室(华北电力大学);
【基金】：中央高校基本科研业务专项资金项目(13XS38) 北京市支持中央在京高校共建项目(20121007901)~~
【分类号】：TM621.2

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