Ground Source Heat Pump Sub-Slab Heat Exchange Loop Performance in a Cold Climate

Mittereder, Nick¹  Poerschke, Andrew¹ 

[1] IBACOS, Inc., Pittsburgh, PA (United States)

关键词: residential;    Residential Buildings;    Building America;    IBACOS;    ground source heat pump;    sub-slab heat exchanger;    TRNSYS modeling;   

DOI  :  10.2172/1220905
RP-ID  :  DOE/GO--102013-4295
PID  :  OSTI ID: 1220905
Others  :  Other: 6609

美国|英语

来源: SciTech Connect

【 摘 要 】

This report presents a cold-climate project that examines an alternative approach to ground source heat pump (GSHP) ground loop design. The innovative ground loop design is an attempt to reduce the installed cost of the ground loop heat exchange portion of the system by containing the entire ground loop within the excavated location beneath the basement slab. Prior to the installation and operation of the sub-slab heat exchanger, energy modeling using TRNSYS software and concurrent design efforts were performed to determine the size and orientation of the system. One key parameter in the design is the installation of the GSHP in a low-load home, which considerably reduces the needed capacity of the ground loop heat exchanger. This report analyzes data from two cooling seasons and one heating season.