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Author
Achenbach, P. R. | Davis, J. C. | Smith, W. T.
Title
Analysis of Electric Energy Usage in Air Force Houses Equipped With Air-to-Air Heat Pumps.
Coporate
National Bureau of Standards, Washington, DC
Report
NBS Monograph 051, July 13, 1962, 37 p.
Keywords
heat pumps | electric energy usage | heating | cooling | housing
Abstract
An analysis was made of the electric energy usage for all purposes in 16 samples houses selected from a total of 1,535 houses constructed at Little Rock Air Force Base to domicile Air Force personnel. Of principal interest was the energy used by the air-to-air heat pumps installed for all-year air conditioning and the effect of electric energy used by other appliances on the heating and cooling loads in the houses. The data revealed that the annual energy usage in the 16-house sample averaged 25,300 kilowatt-hours per house, of which approximately half was used by the heat pump and its auxiliary resistance heaters, about one-fourth was used for water heating, and the remaining one-fourth was used for the electric range and miscellaneous devices. It was determined that the energy used by appliances, other than the heat pump, which contributed toward heating the house was about half the amount used by the heat pump during the winter months. An analysis of the demand charts revealed that the monthly maximum power demand for the entire housing area was probably caused by a moderately high sustained demand in many houses rather than a coincidence of the maximum demands in a smaller number of houses. The effect of several types of programing devices on the pattern of power demand is discussed.