综合智慧能源 ›› 2022, Vol. 44 ›› Issue (10): 65-70.doi: 10.3969/j.issn.2097-0706.2022.10.009

• 能量管理与经济性分析 • 上一篇    下一篇

技术-经济因素对天然气分布式能源系统经济性影响分析

冯乐军, 付志浩, 刘锋, 龚雨桐, 李艺敏, 韩东江, 隋军()   

  1. 中国科学院工程热物理研究所,北京 100190
  • 收稿日期:2022-07-22 修回日期:2022-10-16 出版日期:2022-10-25 发布日期:2022-12-03
  • 通讯作者: 隋军
  • 作者简介:冯乐军(1989),男,助理研究员,博士,从事多能互补分布式供能、储能等方面的研究,fenglejun@iet.cn
    付志浩(1998),男,在读博士研究生,从事多能互补分布式能源系统集成方法等方面的研究,fuzhihao@iet.cn
  • 基金资助:
    国家自然科学基金项目(52006215)

Study on the influence of technical and economic factors on the economy of a natural gas distributed energy system

FENG Lejun, FU Zhihao, LIU Feng, GONG Yutong, LI Yimin, HAN Dongjiang, SUI Jun()   

  1. Institute of Engineering Thermophysics,Chinese Academy of Sciences,Beijing 100190,China
  • Received:2022-07-22 Revised:2022-10-16 Online:2022-10-25 Published:2022-12-03
  • Contact: SUI Jun

摘要:

天然气分布式能源系统通过冷热电三联供等方式实现能源的梯级利用,具有节能、经济、环保的优点。以静态投资回收期为经济性评价指标,从技术和经济角度分析了各个参数对天然气分布式能源系统经济性的影响规律。通过灵敏度分析,确定节能率、投资成本、运行时长和气电价格比为主要影响因素。以投资回收期为优化目标,分析了各个主要参数在不同投资回收期下的边界,可为天然气分布式能源系统实际项目的运行和政策制定提供指导。

关键词: 天然气分布式能源系统, 冷热电三联供, 能源梯级利用, 发电效率, 气电价格比, 静态投资回收期

Abstract:

A natural gas distributed energy system can realize the cascade utilization of energy by providing cooling,heating and electric power. Its advantages include energy saving, economy and environmental protection. Taking static payback period as its economy evaluation index ,the influence of various parameters on the economy of a distributed energy system is analyzed from the technical and economic perspectives. Through sensitivity analysis, energy saving rate, investment cost, operating time and gas-electricity price ratio are taken as the main factors. Taking payback period as the optimization objective, the boundary of each main parameter under different payback periods is analyzed, which provides guidance for the actual projects and policy making of distributed energy systems.

Key words: natural gas distributed energy system, CCHP, energy cascade utilization, power generation efficiency, gas-electricity price ratio, static payback period

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