太阳能-空气源热泵耦合式沼气池加温系统设计  

Design on Heating Systems Combined with Air-source Heat Pump and Solar Energy of the Rural Biogas Digester

作　　者：石惠娴[1] 王卓[1] 朱洪光[1] 雷勇[1] 张迪[1] 裴晓梅[2] 

机构地区：[1]同济大学现代农业科学与工程研究院,上海200092 [2]同济大学机械工程学院,上海200092

出　　处：《建筑节能》2010年第10期28-31,共4页BUILDING ENERGY EFFICIENCY

基　　金：上海市科委科技发展基金项目(09391910700);上海市科委项目(07DZ12050);国家科技支撑计划项目(2008BADC4B05);国家科技支撑计划项目(2008BAJ08D0)

摘　　要：针对8 m3沼气发酵池设计了一套空气源热泵-太阳能耦合式加温系统,可以根据不同天气切换运行太阳能、太阳能空气源热泵和空气源热泵3种热源模式,以满足沼气池内的加温需求。计算了沼气池加温系统的热负荷,将该系统与电热膜加温系统和地源热泵系统进行了比较,可以分别增加投资效益净现值11866.9元和4726.7元,多投资部分的投资回收期分别为8年和4年。可见,对于小型沼气池工程,采用空气源热泵辅助太阳能热水系统,从节能性与经济性来讲,是一种适宜推广的热源形式。A heating system combined with air-source heat pump and solar energy was designed for an 8m3 fermentation reactor.In or-der to meet the heat load,it can be switched for different patterns including solar energy powered mode,solar powered air-source heat pump mode and air-source heat pump mode according to different weathers.Heat load was calculated based on the characteristics of the digester.Compared with the electro-thermal film heating system and ground source heat pump system,this system increases investment returns and net present value of 23190.2 yuan and 7611.9 yuan respectively.Meanwhile,the recycling extended payback period could be 8 years and 4 years individually.For energy savings and economical availability,it has broad prospects in the future.

关 键 词：沼气池 空气源热泵 太阳能 加温系统 经济性分析 

分 类 号：S216.4[农业科学—农业机械化工程] TK529[农业科学—农业工程]