Long-Term Results from Evaluation of Advanced New Construction Packages in Test Homes: Martha's Vineyard, Massachusetts

Stecher, D. ; Allison, K. ; Prahl, D.

National Renewable Energy Laboratory (U.S.)

关键词: Buildings;    Ductless Heat Pump Unit (Dhu);    Heating Seasonal Performance Factor;    Photovoltaic;    Seasonal Energy Efficiency Ratio;   

DOI  :  10.2172/1054829
RP-ID  :  DOE/GO-102012-3494
RP-ID  :  AC36-08GO28308
RP-ID  :  1054829

美国|英语

来源: UNT Digital Library

【 摘 要 】

This report presents a cold climate project that examines the relationships among very energy efficient single-family residential thermal enclosures, room-to-room temperature variations, and simplified space conditioning systems. The project is located in West Tisbury, Massachusetts, on the island of Martha's Vineyard, and allowed for the comparison of room-to-room temperatures in four virtually identical houses that were all built to the same construction standard. The four homes each has a single ductless heat pump unit (DHU) located in the main living space and radiant electric resistance panels in each bedroom with individual thermostatic controls. Results indicate that temperature fluctuations in the living room due to aggressive setup and setback of the DHU may contribute to higher percentages of time where the bedroom temperatures were within +/-2 degrees F of the living room temperatures. Solar gains in the living room, door opening/closure and occupant manipulation of thermostats appear to have had a significant impact on room-to-room temperature differences, as would be expected.