多种可再生能源互补的多联产系统性能研究

Study on Performance of Multi-generation System ofMulti-renewable Energy Complementary

为了在满足乡村多层次用能需求的同时实现乡村生态环境的可持续发展,以甘肃省兰州市50户新农村建筑为研究对象,构建了一个由生物质能、太阳能及空气能互补的冷热电气肥多联产系统。分析了系统的运行性能,并从能源、经济和环境3个方面与传统分供系统进行比较,最后分析了各经济参数对系统经济性能的影响。结果表明:相对于传统分供系统,该系统的一次能源节约率为34.25%,费用年值节约率为48.82%,CO_(2)减排率为76.79%;动态资本回收期为6.08 a,而沼液价格是影响最大的经济参数。研究结果说明了多联产系统在农村的可行性,对农村可再生能源的高效利用和环境保护有一定的参考价值。

In order to meet the needs of multi-level energy use in rural areas and realize the sustainable development of rural ecological environment,50 new rural buildings in Lanzhou City,Gansu Province were taken as the research object.A hot,electric,biogas and fertilizer multi-generation system composed of biomass,solar and air energy was constructed.The operation performance of the system is analyzed and compared with the traditional distribution system from three aspects including energy,economy and environment.Finally,the influence of various economic parameters on the economic performance of the system is analyzed.The results show that compared with the traditional distribution system,the primary energy saving rate of the system is 34.25%,the annual cost saving rate is 48.82%,and the CO_(2) emission reduction rate is 76.79%.The dynamic capital recovery period is 6.08 years,and the biogas slurry price is the most influential economic parameter.The research results show that the multi-generation system is feasible in rural areas,and has a certain value and significance for the efficient utilization of rural renewable energy and environmental protection.