北京市无供暖地下车库排风能量回收的节能经济性分析  

Energy saving performance and economic analysis of exhaust air energy recovery of an unheated underground garage in Beijing

作　　者：李雨婷 李兆坚[2] Li Yuting;Li Zhaojian(Beijing Institute of Architectural Design Co.,Ltd.,Beijing;Beijing Special Engineering Design and Research Institute,Beijing)

机构地区：[1]北京市建筑设计研究院股份有限公司,北京 [2]北京特种工程设计研究院,北京

出　　处：《暖通空调》2024年第6期76-81,共6页Heating Ventilating & Air Conditioning

摘　　要：针对寒冷地区无供暖地下车库排风能量回收是否节能经济的问题,对北京市某无供暖地下车库的内外空气温湿度进行了4年的测试,依据实测数据对地下车库排风显热回收的节能经济性进行了定量分析,分析了不同季节、排风位置和运行模式对排风能量回收的影响,并对其冬季结霜问题进行了分析。结果表明:在办公建筑间歇运行模式下,排风显热回收装置的平均节电量为空调季0.125 kW·h/(m~3/h)、供暖季0.547 kW·h/(m~3/h)、全年0.672 kW·h/(m~3/h),空调季平均能量回收比为9.1,供暖季平均能量回收比为16.2,平均投资回收期为5.9 a;在连续运行模式下,其平均投资回收期仅为2.0 a;排风显热回收装置在寒冷地区无供暖地下车库中应用可产生较好的节能和经济效益。Aiming at the problem of whether the exhaust air energy recovery from unheated underground garages in cold zone is energy saving and economical,the air temperature and humidity both inside and outside of an unheated underground garage in Beijing are tested for 4 years.Based on the measured data,the energy saving performance and economic impact of exhaust air sensible heat recovery of the underground garage are quantitatively analysed.The influence of different seasons,exhaust positions and operation modes is analysed.The effect of frost in winter is also taken into account.The results show that in the intermittent operation mode of office buildings,the average energy saving of the exhaust air sensible heat recovery device is 0.125 kW·h/(m~3/h)during the air conditioning season,0.547 kW·h/(m~3/h)during the heating season,and 0.672 kW·h/(m~3/h)throughout the year.The average ratio of energy recovery is 9.1 during the air conditioning season,and 16.2 during the heating season.The average investment payback period is 5.9 years for the intermittent operation mode and 2.0 years for the continuous operation mode.Therefore,the application of the exhaust air sensible heat recovery device to unheated underground garages in cold zone can produce significant energy saving and economic benefits.

关 键 词：无供暖地下车库 排风能量回收 节能 经济性 北京市 

分 类 号：TU8[建筑科学]