分布式供能系统用于现代农业大棚的研究  

Application of Distributed Energy Supply System in Modern Agricultural Greenhouse

作　　者：罗宁[1] 何青[1] Luo Ning;He Qing(School of Energy Power and Mechanical Engineering,North China Electric Power Universit)

机构地区：[1]华北电力大学能源动力与机械工程学院

出　　处：《上海节能》2018年第6期372-381,共10页Shanghai Energy Saving

基　　金：国家自然基金资助项目(NO.51276059)

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 agricul- tural greenhouses, the optimization of greenhouse energy supply system is particularly important. Based on the cold, heat, electricity load and CO2 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 electrici- ty, and the smoke was sent into the greenhouse to provide the CO2 needed for the greenhouse. The main equipments of the system include gas turbine, absorption type bromine cooler, energy stor- age 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 tradition- al production system is compared. By comparison, the conclusion the premise of providing the same cold, heat and electricity the production system of the combined production system is more energy saving; the co production system can achieve CO2 emission reduction, and the amount of C02 generated is enough to meet the CO2 demand of greenhouse. The application of CO2 production system in greenhouse can achieve four cogeneration of cold, heat, electricity and CO2.

关 键 词：天然气 分布式供能 CO2减排 农业大棚 以热定电 

分 类 号：S625.3[农业科学—园艺学]