分布式供能系统用于现代农业大棚的研究
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摘要
随着现代农业大棚规模的不断扩大,大棚供能系统的优化发展显得尤为重要。以上海某农业大棚的冷、热、电负荷和CO_2需求为研究基础,根据以热定电的原则,设计了一套以天然气为核心的分布式供能系统,并将排烟送入大棚,提供大棚所需的CO_2。该系统的主要设备有燃气轮机、吸收式溴冷机、蓄能水箱和换热器。本项目制定了系统在不同季节的运行方案,并将联产系统和传统的分产系统全年能耗量进行对比。通过对比得出结论:在提供相同的冷、热和电负荷的前提下联产系统比分产系统更加节能;联产系统可以做到CO_2的减排,产生的CO_2理论上足够满足大棚的CO_2需求。联产系统在大棚上的应用可以做到冷、热、电和CO_2四联产。
With the expansion of the scale of modern agricultural greenhouses, the optimization of greenhouse energy supply system is particularly important. Based on the cold, heat, electricity load and CO_2 demand of an agricultural greenhouse in Shanghai,a set of distributed energy supply system with natural gas as the core was designed according to the principle of heat and electricity, and the smoke was sent into the greenhouse to provide the CO_2 needed for the greenhouse. The main equipments of the system include gas turbine, absorption type bromine cooler, energy storage water tank and heat exchanger. The operation scheme of the system in different seasons is formulated, and the annual energy consumption of the combined production system and the traditional production system is compared. By comparison, the conclusion is: in the premise of providing the same cold, heat and electricity load, the production system of the combined production system is more energy saving; the co production system can achieve CO_2 emission reduction, and the amount of CO_2 generated is enough to meet the CO_2 demand of greenhouse. The application of CO_2 production system in greenhouse can achieve four cogeneration of cold, heat, electricity and CO_2.
With the expansion of the scale of modern agricultural greenhouses, the optimization of greenhouse energy supply system is particularly important. Based on the cold, heat, electricity load and CO_2 demand of an agricultural greenhouse in Shanghai,a set of distributed energy supply system with natural gas as the core was designed according to the principle of heat and electricity, and the smoke was sent into the greenhouse to provide the CO_2 needed for the greenhouse. The main equipments of the system include gas turbine, absorption type bromine cooler, energy storage water tank and heat exchanger. The operation scheme of the system in different seasons is formulated, and the annual energy consumption of the combined production system and the traditional production system is compared. By comparison, the conclusion is: in the premise of providing the same cold, heat and electricity load, the production system of the combined production system is more energy saving; the co production system can achieve CO_2 emission reduction, and the amount of CO_2 generated is enough to meet the CO_2 demand of greenhouse. The application of CO_2 production system in greenhouse can achieve four cogeneration of cold, heat, electricity and CO_2.
引文
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[3]鲁敏,岑红蕾,郭天圣.温室大棚复合供能优化配置研究[J].农机化研究,2014(3):66-69.Lu Min,Cen Honglei,Guo Tiansheng.Study on optimal allocation of composite energy supply in Greenhouse[J].Journal of Agricultural Mechanization Research,2014(3):66-69
[4]李元媛,张娜,蔡睿贤.控制CO2的太阳能/甲烷互补系统热力经济性研究[J].工程热物理学报,2013,34(10):1807-1812.Li Yuanyuan,Zhang Na,Cai Ruixian.Thermodynamic and economic study on solar/methane hybrid system for CO2control[J].Journal of Engineering Thermophysics,2013,34(10):1807-1812.
[5]蔡博,康书硕,李洪强,等.基于天然气基分布式能源系统智能建筑能源物联网研究[J].工程热物理学报,2012,33(12):2047-2051.Cai Bo,Kang Shushuo,Li Hongqiang,et al.Research on intelligent building energy Internet of things based on natural gas based distributed energy system[J].Journal of Engineering Thermophysics,2012,33(12):2047-2051.
[6]孙流莉,韩巍,金红光,等.一种新型分布式功冷联产系统性能研究[J].工程热物理学报,2013,34(1):1-4.Sun Liuli,Han Wei,Jin Hongguang,et al.Research on performance of a new distributed combined cooling and heating system[J].Journal of Engineering Thermophysics,2013,34(1):1-4
[7]高威,王玉璋,翁一武,等.改善国内分布式供能系统经济性的建议[J].燃气轮机技术,2014(1):1-5.Gao Wei,Wang Yuzhang,Weng Yiwu,et al.Suggestions on improving the economy of domestic distributed energy supply system[J].Gas Turbine Technology,2014(1):1-5.
[8]王新雷,田雪沁,徐彤.美国天然气分布式能源发展及对我国的启示[J].中国能源,2013,35(10):25-28.Wang Xinlei,Tian Xueqin,Xu Tong.The development of natural gas distributed energy resources in the United States and Its Enlightenment to China[J].Energy of China,2013,35(10):25-28.
[9]刘仁志,李元媛,杨勇平.新型太阳能与燃气轮机联合循环互补系统集热场优化研究[J].工程热物理学报,2016,V37(9):1817-1821.Liu Renzhi,Li Yuanyuan,Yang Yongping.Study on the optimization of heat collection field of a hybrid solar and gas turbine combined cycle system[J].Journal of Engineering Thermophysics,2016,V37(9):1817-1821.
[10]Strachan N,Farrell A.Emissions from distributed vs.centralized generation:The importance of system performance[J].Energy Policy,2006,34(17):2677-2689.
[11]Akorede M F,Hizam H,Pouresmaeil E.Distributed energy resources and benefits to the environment[J].Renewable&Sustainable Energy Reviews,2010,14(2):724-734.
[12]印佳敏,杨劲.分布式供能系统在医院的应用研究[J].节能,2015,34(9):36-39.Yin Jiamin,Yang Jin.Application of distributed energy supply system in hospital[J].energy conservation,2015,34(9):36-39.
[13]姚秀平.燃气轮机与联合循环[M].中国电力出版社,2010.Yao Xiuping.Gas turbine and combined cycle[M].China Electric Power Press,2010.
[14]戴永庆.溴化锂吸收式制冷技术及应用[M].机械工业出版社,1997.Dai Yongqing.Lithium bromide absorption refrigeration technology and application[M].Mechanical Industry Press,1997.