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U.S. Department of Energy
Office of Scientific and Technical Information

Solar energy system performance evaluation update: Williamson Home, Ipswich, Massachusetts, October 1982-September 1983

Technical Report ·
OSTI ID:5248588
The Williamson Home, located in Ipswich, Massachusetts is a 1568-square-foot single family residence using solar energy to heat Domestic Hot Water (DHW) and provide space heating. The solar energy system is designed to supply approximately 53% of the space heating and DHW energy requirements for the house. The active solar energy system has an array of ten flat-plate collectors which use air as the collector medium. The gross collector area of each panel is 50.1 inches x 97.4 inches for a total gross area of 339 square feet. Solar storage is provided by a 240-cubic-foot bin filled with two-inch to three-inch diameter rocks. The hot water subsystem consists of a pickoff-type air-to-water heat exchanger, circulating pump, and a 100-gallon gas-fired hot water tank. This report is the second in a series of performance evaluation reports on the Williamson Home. The solar energy system was operational during the entire reporting period, October 1982 through September 1983. Solar energy supplied 9.16 million Btu to a load of 14.9 million Btu. The solar fraction of the load was 62%. The measured system load was four times smaller than the design load, and solar energy used was three and one-hale times smaller. However, the system solar fraction was slightly better than the design estimate of 53%.
Research Organization:
Vitro Corp., Silver Spring, MD (USA)
DOE Contract Number:
AC01-79CS30027
OSTI ID:
5248588
Report Number(s):
SOLAR/1115-83/14; ON: DE84004462
Country of Publication:
United States
Language:
English