发电技术 ›› 2020, Vol. 41 ›› Issue (3): 212-219.DOI: 10.12096/j.2096-4528.pgt.20013

• 分布式能源系统 • 上一篇    下一篇

基于太阳能热化学的分布式供能系统热力学性能及碳排放分析

刘泰秀1,2(),刘启斌1,2(),隋军1,2(),张铁寅3   

  1. 1 中国科学院工程热物理研究所, 北京市 海淀区 100190
    2 中国科学院大学, 北京市 海淀区 100049
    3 达华工程管理(集团)有限公司, 北京市 东城区 100005
  • 收稿日期:2020-04-01 出版日期:2020-06-30 发布日期:2020-06-24
  • 作者简介:刘泰秀(1993),男,博士,助理研究员,研究方向为多能互补分布式供能, liutaixiu@iet.cn|刘启斌(1979),男,博士,研究员,主要研究方向为太阳能热化学燃料转化、分布式能源系统, qibinliu@iet.cn|隋军(1973),男,博士,研究员,主要研究方向为多能源互补的分布式能源系统, suijun@iet.cn
  • 基金资助:
    国家重点研发计划项目(2018YFB0905102)

Thermodynamic Performance and Carbon Emission Analysis of Distributed Energy Supply System Based on Solar Thermochemistry

Taixiu LIU1,2(),Qibin LIU1,2(),Jun SUI1,2(),Tieyin ZHANG3   

  1. 1 Institute of Engineering Thermophysics, Chinese Academy of Sciences, Haidian District, Beijing 100190, China
    2 University of Chinese Academy of Sciences, Haidian District, Beijing 100049, China
    3 Dahua Engineering Management(Group) Co., Ltd., Dongcheng District, Beijing 100005, China
  • Received:2020-04-01 Published:2020-06-30 Online:2020-06-24
  • Supported by:
    National Key Research and Development Program of China(2018YFB0905102)

摘要:

分布式供能系统临近用户,具有灵活消纳可再生能源的优势。集成太阳能与清洁燃料互补的分布式供能系统,旨在实现太阳能与燃料的高效互补利用。提出了基于太阳能热化学的分布式供能系统,该系统集成了太阳能热化学转化与分布式冷热电联供系统,将太阳能与甲醇以热化学的形式进行源头互补,把太阳能转化为合成气燃料化学能,进而通过内燃机发电机组和余热回收单元输出冷、热、电产品,以满足用户的负荷需求。通过数值计算的方法,对所集成的系统开展了热力学性能及CO2排放性能分析,研究了设计工况及变工况下运行性能,结果表明所集成的太阳能与燃料热化学互补供能系统具有显著的节能减排优势。

关键词: 太阳能热化学, 分布式供能系统, 甲醇分解, 碳排放

Abstract:

Distributed energy supply system is installed close to end-users with advantages of flexible consumption of renewable energy. Distributed energy supply system with integrating solar energy and clean fuel was conducted to achieve efficient utilization of solar energy and fuel. A distributed energy supply system based on the solar thermochemistry was proposed. The system integrated solar thermochemistry conversion and distributed energy system combined cooling, heating and power. The solar and methanol were complemented at the source in a thermochemical form, and the solar was converted into chemical energy of syngas, the cold, heat and power products were then exported through the internal combustion engine electric generator and waste heat recovery units to meet the load demand of users. Through numerical calculation method, the thermodynamic performance and CO2 emission performance of the integrated system were analyzed, and the performance under design and variable operating conditions was studied. The results show that the integrated solar energy and fuel thermochemical complementary energy supply system has significant advantages of energy saving and emission reduction.

Key words: solar thermochemistry, distributed energy supply system, methanol decomposition, carbon emission

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