摘要
严寒地区使用地源热泵供暖时,由于建筑负荷特性,地源热泵长期运行后会使土壤平均温度降低,造成供暖效果不佳甚至浪费更多能源。本文对拟采用地源热泵进行供暖的办公楼进行DeST软件建模,得到其动态热负荷;利用TRNSYS软件搭建地源热泵系统仿真模拟平台,通过改变地埋管深度,模拟供暖工况下热泵系统动态运行。从不同深度地源热泵系统运行10年后土壤平均温度以年为周期的波动变化情况可知,单独供暖工况下1200m深地埋管附近土壤温度场的温降幅度比100m浅地埋管土壤温度场低6.0℃。上述结果可为严寒地区深地埋管热泵系统的设计和运行管理提供参考。
Ground source heat pump(GSHP)will reduce the average soil temperature after long-term operation due to the building load characteristics,resulting in poor heating effect and even waste more energy.In this paper,the dynamic heat load of an office building to be heated by ground source heat pump is obtained by DeST software modeling.The GSHP system simulation platform was built by using TRNSYS software,and the dynamic operation of GSHP under heating conditions was simulated by changing the depth of ground heat exchanger.The fluctuation of soil average temperature with different depths of ground heat exchanger is obtained after 10 years of operation time.The drop of soil temperature near 1200m deep buried pipe is 6.0 degrees lower than that of shallow buried pipe at 100 m under single heating condition.The results can provide reference for the design and operation of deep buried pipe heat pump system in severe cold area.
作者
纪宇乔
姜鸿基
曹慧哲
孙刚
Ji Yuqiao;Jiang Hongji;Cao Huizhe;Sun Gang(CAPOL International;The Northeast Branch of China Urban Construction Design&Research Institute;Key Laboratory of Cold Region Urban and Rural Human Settlement Environment Science and Technology,Ministry of Industry and Information Technology,School of Architecture,Harbin Institute of Technology;College of Aerospace and Civil Engineering,Harbin Engineering University)
出处
《区域供热》
2018年第5期58-64,共7页
District Heating
基金
黑龙江省博士后科研启动金LBH-Q13085
住建部2016年科学技术项目计划2016-K1-021
关键词
地源热泵
深地埋管
土壤平均温度
TRNSYS软件
Ground source heat pump
Deep ground heat exchanger
Average temperature of soil
TRNSYS
