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  • ISSN：0577-6686
机械工程学报

机械工程学报 ›› 2016, Vol. 52 ›› Issue (18): 153-158.doi: 10.3901/JME.2016.18.153

• 可再生能源与工程热物理 • 上一篇    下一篇

一种耦合燃气轮机的富氧燃烧系统技术经济性能分析*

邱丽霞1, 郝艳红2   

  1. 1. 山西大学动力工程系 太原 030013;
    2. 山西大学环境工程系 太原 030013
  • 出版日期:2016-09-20 发布日期:2016-09-20
  • 作者简介:

    作者简介：邱丽霞， 女，1959年出生，教授。主要研究方向为能源利用与污染控制。

    E-mail：qlx12_34@163.com

  • 基金资助:
    * 山西省基础研究计划资助项目(2013011009-7); 20160202收到初稿，20160721收到修改稿;

Techno-economic Study of a System Coupled with Gas Turbine and Oxygen-enriched Combustion

QIU Lixia1, HAO Yanhong2   

  1. 1. Department of Power Engineering， Shanxi University， Taiyuan 030013;
    2. Department of Environmental Engineering， Shanxi University， Taiyuan 030013
  • Online:2016-09-20 Published:2016-09-20

PDF

187

摘要：

提出一种燃气轮机与富氧燃烧耦合的动力系统，该系统利用烟气排烟余热和锅炉内设高温受热面加热压缩空气，使其推动燃气轮机涡轮做功，用燃气轮机的压气机替代空分系统的压缩机，实现空分系统和动力系统耦合，同时燃气轮机也是烟气CO2压缩机的原动机。对新系统进行热力学与经济性分析，对应计算系统净供电效率和供电成本。结果显示当工质在锅炉高温受热面中的吸热量占燃气轮机热耗的比β为0.8、燃气轮机效率ηgt为0.32时，新型耦合系统净效率可比常规富氧燃烧系统增加4.2%，供电成本降低0.044 元/(kW·h)。

关键词: 富氧燃烧, 技术经济, 净效率, 空分, 燃气轮机

Abstract:

：A system coupled with gas turbine and oxygen-enriched combustion is studied. The gas turbine is driven by compressed air which is heated by the waste heat of flue gas and the high temperature heating surface of the boiler, gas turbine provides compressed air for air separation units(ASU), and gas turbine is also the primary motivation of CO2compressor, and the system coupling air separation unit with dynamic system, The thermodynamic and economic analysis of the new system are carried out, and the power supply efficiency and the power supply cost are calculated. The results show that theβ being 0.8 and the efficiency of gas turbine being 0.32 the net efficiency of the new system can be increased by 4.2% compared with the conventional oxy-enriched combustion system, and the power supply cost being reduced by 0.044 RMB/(kW·h).

Key words: air separation units, oxygen-enriched combustion, power supply efficiency, techno-economic study, gas turbines

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