Studies on methods of reducing heat losses from flat plate solar collectors, Phase 2. Annual progress report, February 1, 1976--January 1, 1977

Technical Report · Sat Jan 01 00:00:00 EST 1977

DOI:https://doi.org/10.2172/7280201· OSTI ID:7280201

Hollands, K G.T.; Raithby, G D; Unny, T E

Improvements to flat plate solar collectors for heating and cooling of buildings are being investigated through two parallel studies. The first study, which deals with the free convective heat loss from V-corrugated absorber plate to a plane glass cover, has shown that, for the same average spacing, the free convective heat loss is greater for a V-corrugated absorber plate than for a plane absorber plate. However, provided the average spacing is large enough, the amount of increase is slight. The second study, which deals with the free convective heat loss in a honeycomb solar collector in which the honeycomb consists of a set of horizontal partitions, or slits, has shown that provided the solar collector is tilted to near vertical, such a honeycomb gives better free convective loss suppression than does a square-celled honeycomb having the same amount of material.

• Research Organization: Waterloo Univ., Ontario (Canada). Research Inst.
• DOE Contract Number: EY-76-C-02-2597
• OSTI ID: 7280201
• Report Number(s): COO/2597-3
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
FLAT PLATE COLLECTORS
HEAT LOSSES
COVERINGS
EFFICIENCY
HONEYCOMB STRUCTURES
NATURAL CONVECTION
SOLAR COOLING SYSTEMS
SOLAR HEATING SYSTEMS
CONVECTION
ENERGY LOSSES
ENERGY TRANSFER
HEAT TRANSFER
HEATING SYSTEMS
MECHANICAL STRUCTURES
SOLAR COLLECTORS
141000* - Solar Collectors & Concentrators