Ottawa townhouses demonstrate solar

Journal Article · Fri Jun 01 04:00:00 EDT 1979 · Sol. Heat. Cool.; (United States)

OSTI ID:5496301

Solar-assisted heat pumps have been installed in a townhouse complex in Ottawa, Canada. A total of 2300 ft/sup 2/ of copper flat plate collectors heats water to 70-100/sup 0/F, heated water is stored in a 7000-gal storage tank for use in heating the units. The heat pump is a Westinghouse Templifier with a capacity of 230,000 Btu/hr and a COP of 3.0. In the winter months, the solar heating system supplied 40% of the space heating and 100% of the hot water requirements of 19 housing units. Overflow heat in the summer is used to heat all the domestic hot water for an additional 42 townhouses. When collector temperatures are raised from 70/sup 0/F to 140-170/sup 0/F, the differential doubles the efficiency of the collectors in winter. Drain-down of the system prevents freezing in the collectors.

• OSTI ID: 5496301
• Journal Information: Sol. Heat. Cool.; (United States), Journal Name: Sol. Heat. Cool.; (United States) Vol. 4:4; ISSN SHECD
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140901* -- Solar Thermal Utilization-- Space Heating & Cooling
140907 -- Solar Thermal Utilization-- Water Heating
AIR CONDITIONERS
APPLIANCES
BUILDINGS
CANADA
DRAIN-DOWN SYSTEMS
ELECTRIC APPLIANCES
ENERGY STORAGE
EQUIPMENT
FLAT PLATE COLLECTORS
HEAT PUMPS
HEAT STORAGE
HEATING
HEATING SYSTEMS
HYDROGEN COMPOUNDS
NORTH AMERICA
OXYGEN COMPOUNDS
PERFORMANCE
RESIDENTIAL BUILDINGS
SENSIBLE HEAT STORAGE
SOLAR AIR CONDITIONERS
SOLAR COLLECTORS
SOLAR COOLING SYSTEMS
SOLAR EQUIPMENT
SOLAR HEATING
SOLAR HEATING SYSTEMS
SOLAR SPACE HEATING
SOLAR WATER HEATING
SOLAR-ASSISTED HEAT PUMPS
SPACE HEATING
STORAGE
WATER