Earth source heat pump for low energy domesticity

Journal Article · Tue Jun 01 04:00:00 EDT 1976 · Refrig. Air Cond.; (United States)

OSTI ID:7153387

An experimental house built at Aachen, West Germany by the Philips Company is heated by a solar collector and Earth source heat pump. By using a high standard of insulation and reclaiming heat from the exhaust air and waste water, energy requirements of the house have been cut to one-fifth of the normal. The primary source for the heat pump is a 400-ft-long ground coil placed under the basement floor and covering an area of about 1,500 sq ft. Source temperature in winter is about 45/sup 0/F and this is pumped up to about 120/sup 0/F and transferred to the heat exchanger. Calculations have shown that the ground coil will be able to heat the entire house in winter. The heat pump will also be used to recover heat from waste water by means of a coil in the 220-gal waste water accumulator tank. Another phase of the experiment is to turn to the solar collector as the only source of heat. Philips estimates an annual efficiency of about 50 percent from the 200-sq. ft. collector. Essential to the success of both solar and ground sources is the 9000-gal water storage reservoir housed in the basement. (MCW)

• OSTI ID: 7153387
• Journal Information: Refrig. Air Cond.; (United States), Journal Name: Refrig. Air Cond.; (United States) Vol. 79:939; ISSN RFGAB
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140901 -- Solar Thermal Utilization-- Space Heating & Cooling
29 ENERGY PLANNING, POLICY, AND ECONOMY
291000* -- Energy Planning & Policy-- Conservation
299001 -- Energy Planning & Policy-- Solar-- (1989-)
AIR CONDITIONING
AUTOMATION
BUILDINGS
EFFICIENCY
ENERGY CONSERVATION
EUROPE
GERMAN FEDERAL REPUBLIC
HEAT EXCHANGERS
HEAT PUMPS
HEATING
HOUSES
OPERATION
PERFORMANCE TESTING
RECOVERY
RESIDENTIAL BUILDINGS
SOLAR COLLECTORS
SPACE HEATING
TESTING
THERMAL INSULATION
VENTILATION