跨季节蓄冷技术及在设施农业应用的经济性分析  

Techno-economic analysis of seasonal cold storage technology and its application in protected agriculture

作　　者：傅德坤 宋文吉[2,3,4] 陈明彪 冯自平[1,2,3,4,5] FU Dekun;SONG Wenji;CHEN Mingbiao;FENG Ziping(Department of Thermal Science and Energy Engineering,University of Science and Technology of China,Hefei 230027,Anhui,China;Guangzhou Institute of Energy Conversion,Chinese Academy of Sciences,Guangzhou 510640,Guangdong,China;CAS Key Laboratory of Renewable Energy,Guangzhou 510640,Guangdong,China;Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development,Guangzhou 510640,Guangdong,China;Zibo Energy Research Institute,Zibo 255000,Shandong,China)

机构地区：[1]中国科学技术大学热科学和能源工程系,安徽合肥230027 [2]中国科学院广州能源研究所,广东广州510640 [3]中国科学院可再生能源重点实验室,广东广州510640 [4]广东省新能源和可再生能源研究开发与应用重点实验室,广东广州510640 [5]淄博能源研究院,山东淄博255000

出　　处：《储能科学与技术》2021年第6期2385-2391,共7页Energy Storage Science and Technology

基　　金：中国科学院战略性先导科技专项(A类)项目(XDA21070305)。

摘　　要：为明确跨季节蓄冷技术在设施农业应用场景下的技术经济性,选取济南地区某日光温室群为研究对象,采用以冰源热泵为核心的跨季节蓄冷系统实现温室群的全年冷热管理,建立系统的蓄冷量损失模型和节能、经济、环境效益评价模型,对系统蓄冷量、一次能源利用率、费用年值、动态投资回收期及污染物减排量进行分析,并同其他热泵系统和锅炉系统进行比较。结果表明:跨季节蓄冷体的全年冷量损失在5%以内,最大蓄冷量为170409.07 GJ,至全年结束仍有14509.47 GJ剩余,系统可满足温室群全年供冷供热需求;系统的供冷一次能源利用率为6.27,全年一次能源利用率为1.71,跨季节蓄冷技术的应用大幅提升系统能效,节能效果优越;系统运行费用极低,费用年值最低,动态投资回收期为3.9~6.9年,经济可行性良好;系统较空气源热泵每年可减少13897.90 t CO_(2)、3.61 t SO_(2)、7.16 t NO_(x)和1.41 t烟尘排放,减排率高达77.3%,跨季节蓄冷技术的应用显著减少温室气体及污染物的排放,环境效益显著。To determine the techno-economic of seasonal cold storage technology applied to protected agriculture,a group of solar greenhouses in Jinan was selected as the research object.To achieve year-round cold and heat management of the group of solar greenhouses,a seasonal cold storage system based on an ice source heat pump was used.The cold storage loss model and the energy savings,economic,and environmental benefit evaluation models were developed.The system's cold storage capacity,primary energy ratio(PER),annual cost,dynamic investment payback period,and pollutant emission reduction were then analyzed and compared to other heat pump and boiler systems.The results showed that:The annual cold capacity loss of the seasonal cold storage tank was less than 5%,the maximum cold storage capacity was 170409.07 GJ,14509.47 GJ was remaining at the end of the year,and the group solar greenhouses'annual cooling and heating demand was met.The PER of seasonal cold storage system for cooling was 6.27 and the annual PER was 1.71,which meant that the application of seasonal cold storage technology greatly improves the energy efficiency and the energy-saving effect of the system.The system's operating costs were extremely low,the annual costs were low,and the dynamic investment payback period was 3.9~6.9 years,indicating that this system had good economic feasibility.When compared to an air source heat pump,this system could reduce 13897.90 tons t of CO_(2),3.61 tons of SO_(2),7.16 tons of NO_(x),and 1.41 tons of smoke and dust per year with an emission reduction rate of 77.3%,indicating that the use of seasonal cold storage technology significantly reduced greenhouse gas and pollutant emissions and has significant environmental benefits.

关 键 词：跨季节蓄冷 冰源热泵 设施农业 经济性分析 

分 类 号：TK02[动力工程及工程热物理] S210.5[农业科学—农业机械化工程]