竖直地埋管换热器优化设计与模拟软件  

Simulation Modeling and Design Optimization of Vertical Ground Heat Exchanger

作　　者：崔萍[1] 刁乃仁[1] 杨洪兴[2] 方肇洪[1] 

机构地区：[1]山东建筑大学地源热泵研究所 [2]香港理工大学屋宇设备系

出　　处：《建筑热能通风空调》2010年第5期50-54,41,共6页Building Energy & Environment

基　　金：国家自然科学基金项目(No.50946039)

摘　　要：本文首先讨论了地源热泵系统竖直埋管地热换热器的理论传热模型及其解析解,然后详细介绍了根据这一模型开发并完善的地热换热器设计和模拟计算软件"地热之星GeoStar V3.0"。该软件除了根据负荷设计计算地埋管的总长度以外,还可计算系统的热泵能耗、地埋管换热器的换热量、孔壁的温度变化以及其他性能参数。GeoStar V3.0还增加了设计太阳能辅助地源热泵系统的功能,可对热负荷占优的建筑进行太阳能集热器与地埋管换热器联合运行的优化设计。本文最后针对某一地源热泵示范工程进行了设计计算。使用结果表明,软件中采用的理论传热模型和设计计算方法可以较精确地用于指导工程实践与相关的科研项目。The paper primarily discusses the analytical heat transfer models for the vertical GHEs and introduces the attendant program named ＂GeoStar＂developed for use in design and simulation of vertical GHEs. The GeoStar can calculate the required borehole length and predict time-varying heat pump energy consumption, heat transfer rates of GHEs, and other variables of interest during a long-time period of over 20 years. Meanwhile, the simulation model for the solar-ground source heat pump systems is developed and incorporated into the program, which can design the solar collector area required for heating-dominated buildings. Finally, the program is used to design an existing GSHP project and to simulate the system performance. The results demonstrate the usefulness of the simulation model and attendant program as a tool for designing the GSHP systems.

关 键 词：地源热泵 地热换热器 设计计算 传热 

分 类 号：TU831.6[建筑科学—供热、供燃气、通风及空调工程]