摘要
分析了垃圾填埋沼气回收利用的主要方式。研究了以垃圾填埋场产出沼气驱动直燃型热泵的系统构建、填埋沼气的收集及净化流程,并作经济性计算。结果表明:该系统配置合理,与燃煤锅炉、燃气锅炉以及电动热泵相比,以填埋沼气为燃料,输入功率为500 kW的沼气直燃型热泵系统,按年供热运行300 d计,可分别节约标准煤425 t、天然气27.1万m3、用电量64.2万kWh,2 a左右即可收回热泵系统的先期投资费用。因此,利用垃圾填埋沼气驱动直燃型热泵运行,是一项经济可行且对环境有益的技术,也是一种资源有效利用的节能方式,具有显著的经济效益与环保效益。
The main reclamation and utilization approaches of garbage landfill gas （LFG） was ana- lyzed, the system configuration of LFG driven direct-fired heat pump and the flow process of LFG collection and purification were studied, the economic properties of the system was also calculated. Results of the study show that compared with coal-fired boiler, gas-fired boiler and electricity driven heat pump, a input power of 500 kW LFG fueled heat pump system, which is assumed to op- erate in heating mode for 300 days annually, will save 425 tons of standard coal, 2.71×10^5 cubic me- ters of natural gas or 6.42×10^5 kWh of electricity. The initial cost of such a heat pump system will be paid back in about two years. Therefore, LFG driven heat pump system is an economical, feasi- ble and environmental technology, and is also an energy-saving mode to utilize resources effective- ly. The economic and environmental benefits are prominent.
出处
《可再生能源》
CAS
北大核心
2012年第9期50-54,共5页
Renewable Energy Resources
基金
福建省自然科学基金资助项目(2010J01301)
福建省科技创新平台资助项目(2009H2006)
福建省教育厅科技项目(JB10094)
关键词
填埋沼气
气体收集及净化
直燃型热泵
系统配置
节能减排
LFG
collection and purification of gas
direct-fired heat pump
systemconfiguration
energy saving and emission reduction
