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

Solar-energy-system performance evaluation. San Anselmo School, San Jose, California, April 1981-March 1982

Technical Report ·
DOI:https://doi.org/10.2172/5247500· OSTI ID:5247500

The San Anselmo School is a one-story brick elementary school building in San Jose, California. The active solar energy system is designed to supply 70% of the space heating and 72% of the cooling load. It is equipped with 3740 square feet of evacuated tube collectors, a 2175-gallon tank for heat storage, a solar-supplied absorption chiller, and four auxiliary gas-fired absorption chillers/heaters. The measured solar fraction of 19% is far below the expected values and is attributed to severe system control and HVAC problems. Other performance data given for the year include the solar savings ratio, conventional fuel savings, system performance factor, and solar system coefficient of performance. Also tabulated are monthly performance data for the overall solar energy system, collector subsystem, space heating and cooling subsystems. Typical hourly operation data for a day are tabulated, including hourly isolation, collector array temperatures (inlet and outlet), and storage fluid temperatures. The solar energy use and percentage of losses are also graphed. (LEW)

Research Organization:
Automation Industries, Inc., Silver Spring, MD (USA). Vitro Labs. Div.
DOE Contract Number:
AC01-79CS30027
OSTI ID:
5247500
Report Number(s):
SOLAR/2077-82/14; ON: DE82020142
Country of Publication:
United States
Language:
English