Field Test of High Efficiency Residential Buildings with Ground-source and Air-source Heat Pump Systems

Conference · Sat Jan 01 04:00:00 EST 2011

OSTI ID:1074419

Ally, Moonis Raza ^[1]; Munk, Jeffrey D ^[1]; Baxter, Van D ^[1]

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1. ORNL

This paper describes the field performance of space conditioning and water heating equipment in four single-family residential structures with advanced thermal envelopes. Each structure features a different, advanced thermal envelope design: structural insulated panel (SIP); optimum value framing (OVF); insulation with embedded phase change materials (PCM) for thermal storage; and exterior insulation finish system (EIFS). Three of the homes feature ground-source heat pumps (GSHPs) for space conditioning and water heating while the fourth has a two-capacity air-source heat pump (ASHP) and a heat pump water heater (HPWH). Two of the GCHP-equipped homes feature horizontal ground heat exchange (GHX) loops that utillize the existing foundation and utility service trenches while the third features a vertical borehole with vertical u-tube GHX. All of the houses were operated under the same simulated occupancy conditions. Operational data on the house HVAC/Water heating (WH) systems are presented and factors influencing overall performance are summarized.

• Research Organization: Oak Ridge National Laboratory (ORNL); Building Technologies Research and Integration Center
• Sponsoring Organization: EE USDOE - Office of Energy Efficiency and Renewable Energy (EE)
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 1074419
• Country of Publication: United States
• Language: English

Related Subjects

air-source heat pumps
energy efficiency
ground-source heat pumps
space conditioning
thermal envelopes
water heating