Field Performance of Inverter-Driven Heat Pumps in Cold Climates

Williamson, James¹  Aldrich, Robb¹ 

[1] Consortium for Advanced Residential Buildings, Norwalk, CT (United States)

关键词: Residential;    Residential Buildings;    CARB;    Building America;    inverter-driven;    air-source heat pumps;    Steven Winter Associates;    Inc.;    Consortium for Advanced Residential Buildings;    SWA;    COPs;    cold climate;    Northeast;    performance;    heating;    air flow measurement;    heat pump;    ASHP;   

DOI  :  10.2172/1220551
RP-ID  :  DOE/GO--102015-4642
PID  :  OSTI ID: 1220551
Others  :  Other: 7175

美国|英语

来源: SciTech Connect

【 摘 要 】

CARB observed a wide range of operating efficiencies and outputs from site to site. Maximum capacities were found to be generally in line with manufacturer's claims as outdoor temperatures fell to -10?��F. The reasons for the wide range in heating performance likely include: low indoor air flow rates, poor placement of outdoor units, relatively high return air temperatures, thermostat set back, integration with existing heating systems, and occupants limiting indoor fan speed. Even with lower efficiencies than published in other studies, most of the heat pumps here still provide heat at lower cost than oil, propane, or certainly electric resistance systems.