摘要
针对寒冷地区长期应用地源热泵系统出现的热平衡问题,提出了季节性蓄存环境空气热能的地源热泵供暖空调系统.介绍了该系统的组成及运行模式,建立了系统中各部分的数学模型,确定了系统的运行控制策略,并在此基础上,以哈尔滨地区某办公建筑为对象进行了瞬态数值模拟.由模拟结果可知,该系统能够保持土壤温度场以年为周期的热平衡,全年供暖空调平均性能系数为2.44,与燃煤锅炉供暖和分体空调供冷方案相比,该系统节能率为22.3%.
Regarding the problem of ground heat balance in cold area,a ground source heat pump system which can seasonally accumulate environmental air thermal energy was presented.The components and operation modes of the system were introduced,and the control strategy of system operation was determined through setting up the mathematic model of each system section.Based on the mathematic model and control strategy,the transient numerical simulation was carried out for an office building in Harbin.The simulation results show that the ground source heat pump system can retain thermal balance of the soil temperature field over an one year cycle.The average coefficient of performance was calculated to be 2.44.Compared with that of the coal-fired heating and air conditioning,the system energy-saving rate is 22.3%.
出处
《东北大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2012年第3期439-443,共5页
Journal of Northeastern University(Natural Science)
基金
北京市"供热
供燃气
通风及空调重点实验室"开放课题(KF201003)
关键词
土壤热平衡
地源热泵
季节性蓄存空气热能
数值模拟
性能系数
ground heat balance
ground source heat pump
seasonal air thermal energy storage
numerical simulation
coefficient of performance（COP）
