Typical Case Analysis of Gas Distributed Energy System

Zishen LI; Jiawei ZHAO; Donglei SHAN; Wei LIU; Zhiyong ZHAO

doi:10.16513/j.cnki.10-1427/tk.2019.01.007

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Distributed Energy ›› 2019, Vol. 4 ›› Issue (1) : 32-37. DOI: 10.16513/j.cnki.10-1427/tk.2019.01.007

Application Technology

Typical Case Analysis of Gas Distributed Energy System

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Abstract

Traditional coal-fired power plants or gas-fired power plants have relatively high pollution and low energy efficiency, while gas-fired distributed energy systems can realize energy cascade utilization and high energy efficiency. Through the load index such as cooling, heat and electricity and and energy balance calculation, this paper separately introduces two typical distributed energy systems including building type and regional type; under different running strategies, analyzes the investment estimation and economic benefit of two types of energy systems. The boundary condition and the rate of return on investment are also analyzed and conclude that within a reasonable range of the price of natural gas, electricity and heat, the total investment financial internal rate of return of the system is up to 8% and has superior economic benefit. In addition, the social benefit and environmental benefit of distributed energy system are also analyzed, it is concluded that the system has advantage and flexibility in improving energy efficiency, peak shaving and valley filling, energy conservation and emission reduction compared to other energy systems.

Key words

distributed energy system / load index / building type / regional / economic benefit / boundary condition

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Zishen LI , Jiawei ZHAO , Donglei SHAN , et al . Typical Case Analysis of Gas Distributed Energy System[J]. Distributed Energy Resources. 2019, 4(1): 32-37 https://doi.org/10.16513/j.cnki.10-1427/tk.2019.01.007

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