并网分布式联供系统的能效研究

Energy Efficiency Research of Grid-connectedCCHP System

在倡导清洁供热的社会背景下,燃气冷热电联供系统因其清洁、高效的特点日益受到重视。本文阐述了并网式冷热电联供系统的基本形式、工艺流程和系统原理,并通过与其他4种常见清洁供热系统的能源利用效率进行横向对比,得出并网式系统能效最高的结论。最后,本文以济南市某供热区域为例,对比分析燃气锅炉和配备热泵机组的并网式系统的运行耗能,结果表明并网分布式联供系统比燃气锅炉的能耗少、经济性好。

Under the social background of advocating clean heating,the gas-fired CCHP system has attracted more and more attention because of its clean and efficient characteristics. This paper expounds the basic form,process flow and system principle of the grid-connected CCHP system,and draws the conclusion that the energy efficiency of the grid-connected system is the highest by comparing with the energy efficiency of otherfour common clean heating systems. Finally,taking an area in Jinan as an example,the energy consumption of gas-fired boiler and grid-connected CCHP system equipped with heat pump units are compared longitudinally,which proves that the grid-connected distributed combined supply system has more energy-saving potential and better economy than gas-fired boiler.