CAJ | 학술논문

能源网络图作为能源统计数据分析的有效工具和方法，是评价企业用能效率、发掘能耗薄弱环节、科学制定能源管理政策的重要手段。本文以国内某煤制合成天然气企业为研究对象，并以美国大平原项目为参照，基于能量平衡建立能源网络图对两者能量转化的4个重要环节--购入储存、加工转换、输入分配和最终使用的能量转换效率进行详细地对比分析。结果表明，大平原项目能量转换效率为53.16%，而国内该企业能量转换效率为48.20%，主要体现在终端环节中4个系统的用能效率偏低，需进一步挖掘节能瓶颈和改善用能水平。
능원망락도작위능원통계수거분석적유효공구화방법，시평개기업용능효솔、발굴능모박약배절、과학제정능원관리정책적중요수단。본문이국내모매제합성천연기기업위연구대상，병이미국대평원항목위삼조，기우능량평형건립능원망락도대량자능량전화적4개중요배절--구입저존、가공전환、수입분배화최종사용적능량전환효솔진행상세지대비분석。결과표명，대평원항목능량전환효솔위53.16%，이국내해기업능량전환효솔위48.20%，주요체현재종단배절중4개계통적용능효솔편저，수진일보알굴절능병경화개선용능수평。
Energy network diagram is considered as an effective tool to assess efficiency and detect the weakness of an energy-use process,and further for decision-making in energy management. This paper presents a comparison between a domestic SNG project and the US Plain project via energy balance based energy network diagram,including purchase and storage,processing and conversion,input distribution and end-use. The total energy conversion efficiency of the Plain project and the domestic project are 53.16%and 48.20%respectively,which mainly reflects low energy conversion efficiency in the end-use process,so the further step is to resolve the energy bottleneck and improve the level of energy utilization in this process.