Studies on methods of reducing heat losses from flat plate solar collectors. Progress report, 1 August 1974--31 January 1976
Improvements to flat plate solar collectors for heating and cooling of buildings are evaluated through three parallel studies. The first study demonstrates suppression of free convection by a honeycomb at all angles of inclination. Reductions by a factor of 5 in the free convective heat loss are reported, and equations and charts permitting the rational design of honeycombs for convection suppression in solar collectors are presented. The second study resulted in a precise, easily programmable set of equations for the free convective heat loss through the air gaps in flat plate solar collectors, for any angle of tilt. The third study theoretically and experimentally demonstrated that the solar transmittance of a flat transparent cover for a solar collector can be very substantially increased by V-corrugating.
- Research Organization:
- Waterloo Univ., Ontario (Canada)
- DOE Contract Number:
- ERDA-E(11-1)-2597
- OSTI ID:
- 6279807
- Report Number(s):
- PB-283783
- Country of Publication:
- United States
- Language:
- English
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