Performance of three breadbox solar water heaters in central Florida
Technical Report
·
OSTI ID:6413611
This project investigated three breadbox solar waterheaters in Central Florida. Temperature distributions that occur as the breadbox tank absorbs solar energy are throughly documented. Thermal stratification in breadbox heaters is dramatic during sunny hours as the tank collects useful energy. Performance of breadbox water heaters is hindered by their small surface area to volume ratio. For instance, the typical Florida domestic solar water heating system uses 40 ft/sup 2/ collector for an 84 gallon tank. Typical breadbox designs provide roughly half this amount for similar storage volumes. In Florida's mild climate, nocturnal insulation can be considered optional for nine months of the year. However, winter performance without an insulation mechanism is very poor with 6 am tank temperatures below 80/sup 0/F. This contrasts sharply with results from a nominal 1.5'' expanded polystyrene shutter system 6 am tank top temperatures of 107/sup 0/F.
- Research Organization:
- Burch (Jefferson B.), Oakland, FL (USA)
- DOE Contract Number:
- FG44-81R410463
- OSTI ID:
- 6413611
- Report Number(s):
- DOE/R4/10463-T1; ON: DE85000635
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
14 SOLAR ENERGY
140907* -- Solar Thermal Utilization-- Water Heating
APPLIANCES
CLIMATES
CONTAINERS
EFFICIENCY
EQUIPMENT
FEDERAL REGION IV
FLORIDA
HEATERS
NORTH AMERICA
PERFORMANCE TESTING
SOLAR EQUIPMENT
SOLAR WATER HEATERS
STRATIFICATION
TANKS
TESTING
THERMAL EFFICIENCY
THERMAL INSULATION
USA
WATER HEATERS
140907* -- Solar Thermal Utilization-- Water Heating
APPLIANCES
CLIMATES
CONTAINERS
EFFICIENCY
EQUIPMENT
FEDERAL REGION IV
FLORIDA
HEATERS
NORTH AMERICA
PERFORMANCE TESTING
SOLAR EQUIPMENT
SOLAR WATER HEATERS
STRATIFICATION
TANKS
TESTING
THERMAL EFFICIENCY
THERMAL INSULATION
USA
WATER HEATERS