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Title: Performance evaluation of a passively heated and cooled house

Technical Report ·
OSTI ID:5984998

The objectives of this project are to build and evaluate the performance of SKYTHERM solar heated and cooled passive house located on the campus of New Mexico State University in Las Cruces, New Mexico. Of primary impportance to the study is the evaluaton of capabilities of the system in a severe cooling climate such as encountered in Las Cruces. Since the SKYTHERM house is built adjacent to the Collins Casa del Sol, an active, solar heated and cooled residence, the side-by-side comparison of these two systems is an additional possibility. In a SKYTHERM house a large mass of water contained in clear plastic bags is located on the roof beneath movable insulating panels. During the winter heating mode of operation, the panels are removed during the day, permitting the sun's energy to heat the water, and replaced to insulate the water pond at night. Day and night the warm water on the roof heats the house by heat transfer through the ceiling. When the system is in the summer cooling mode of operation, the cycle is reversed with the insulating panels in place over the water bags during the day and removed at night. In this manner the heat absorbed from the house during the daylight hours is rejected to the clear night sky by radiation and convection heat transfer. The construction of the house and the solar system are described. Some of the data which have been collected in both the heating and cooling modes of operation are presented.

Research Organization:
New Mexico State Univ., Las Cruces (USA)
DOE Contract Number:
AS03-78CS31606
OSTI ID:
5984998
Report Number(s):
DOE/CS/31606-T3; ON: DE82000984
Country of Publication:
United States
Language:
English