skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Performance of residential solar heating and cooling system with flat-plate and evacuated tubular collectors: CSU Solar House I

Conference ·
OSTI ID:6497200

Measurements in Solar House I at Colorado State University have provided comparison data on space heating, water heating, and cooling by systems in which flat-plate collectors and evacuated tube collectors were used. Data were procured on 47 days during operation of the flat-plate collector and on 112 days when the house was heated or cooled by the evacuated tube collector system. It was concluded that the system comprising an evacuated tubular collector, lithium bromide absorption water chiller, and associated equipment is highly effective in providing space heating and cooling to a small building, that it can supply up to twice the space heating and several times the cooling obtainable from an equal occupied area of good quality flat-plate collectors, and that a greater fraction of the domestic hot water can be obtained by supplying its heat from main storage. The cost-effectiveness of the system, in comparison with one employing a good flat-plate collector, can be determined when commercial pricing data are made available. A summary of monthly and annual energy use for space heating, domestic hot water (DHW) heating, and space cooling is presented. The collector performance is presented. The first two months of data were obtained with the system employing flat-plate collectors, whereas heating and cooling during the following nine months were supplied by the evacuated tube collector system.

Research Organization:
Colorado State Univ., Fort Collins (USA). Solar Energy Applications Lab.
DOE Contract Number:
EY-76-S-02-2577
OSTI ID:
6497200
Report Number(s):
COO-2577-17; CONF-7804101-1
Resource Relation:
Conference: CCMS meeting, Dusseldorf, F.R. Germany, 19 Apr 1978
Country of Publication:
United States
Language:
English