Integrated Intelligent Energy ›› 2022, Vol. 44 ›› Issue (10): 65-70.doi: 10.3969/j.issn.2097-0706.2022.10.009

• Energy Management and Economic Analysis • Previous Articles     Next Articles

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 E-mail:suijun@iet.cn

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

CLC Number: