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U.S. Department of Energy
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Solar energy system performance evaluation: seasonal report for IBM System IA, Huntsville, Alabama

Technical Report ·
DOI:https://doi.org/10.2172/5415367· OSTI ID:5415367
The analysis used is based on instrumented system data monitored and collected for at least one full season of operation. The long-term field performance of the installed system is reported. The Solar Energy System, Sims Prototype System 1A, was designed by IBM to provide 50 to 60% of the space heating and domestic hot water (DHW) preheating load to a 2000 square foot floor space single faily residence in the Huntsville area. The load design temperature inside the building was to be maintained at 70 degrees fahrenheit with auxiliary energy for heating supplied by an electric heat pump assisted by an electric resistance strip heater. Auxiliary energy for domestic hot water is from a conventional 20-gallon DHW storage tank. The solar energy system, uses air as the heat transport medium, has a 720 square foot Solar Energy Products Collector Array, a 22-ton rock storage located within the office building, a pump, heat exchanger, air handler, pre-heat tank, fan and associated plumbing. The system has five different modes of operation.
Research Organization:
IBM Federal Systems Div., Huntsville, AL (USA)
DOE Contract Number:
AI01-76CS31037
OSTI ID:
5415367
Report Number(s):
DOE/NASA/CR-161464
Country of Publication:
United States
Language:
English