摘要
在比较地源热泵地埋管计算的2类线热源模型的基础上,本文采用有限长线热源模型与钻孔内热阻的准三维模型相结合的方式,在相应的建筑年逐时负荷条件下,进行地源热泵系统的逐时参数计算,通过与DST模型计算结果进行比较,验证了本文计算模型的准确性,为垂直U型地埋管的设计计算和热泵系统的运行模拟提供了必要的参考。
In this paper, based on the comparison between infinite and finite line-source models, the relative hourly parameters corresponding to hourly building load were calculated by using the finite line-source model which was combined with the quasi-three- dimensional model of borehole resistance in ground source heat pump （GSHP） system. The accuracy of calculated results was validated by comparing with that of the duct storage system （DST） model. The presented model in this paper offered necessary references to design and calculation of vertical U-tubes for geothermal heat exchanger （GHE） and operation simulation of GSHP system.
出处
《建筑科学》
北大核心
2008年第12期71-76,共6页
Building Science
基金
青岛市科技发展计划项目(06-2-2-22-jch)
关键词
线热源模型
垂直U型地埋管
DST模型
系统模拟
line-heat-resource model, vertical U-tubes geothermal heat exchanger, DST model, system simulation
