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Title: Lawrence Berkeley Laboratory, Berkeley, California solar energy system performance evaluation, July 1980-June 1981

Technical Report ·
DOI:https://doi.org/10.2172/5247568· OSTI ID:5247568

The Lawrence Berkeley Laboratory site is an office building in California with an active solar energy system designed to supply from 23 to 33% of the space heating load and part of the hot water load. The solar heating system is equipped with 1428 square feet of flat-plate collectors, a 2000-gallon water storage tank, and two gas-fired boilers to supply auxiliary heat for both space heating and domestic hot water. Poor performance is reported, with the solar fraction being only 4%. Also given are the solar savings ratio, conventional fuel savings, system performance factor, and the coefficient of performance. The performance data are given for the collector, storage, solar water heating and solar space heating subsystems as well as the total system. Typical system operation and solar energy utilization are briefly described. The system design, performance evaluation techniques, weather data, and sensor technology are presented. (LEW)

Research Organization:
Automation Industries, Inc., Silver Spring, MD (USA). Vitro Labs. Div.
DOE Contract Number:
AC01-79CS30027
OSTI ID:
5247568
Report Number(s):
SOLAR/2050-81/14; ON: DE82007152
Country of Publication:
United States
Language:
English