Residential conservation demonstration: domestic hot water. Final report
Four types of domestic hot water (DHW) systems installed in 80 homes throughout Florida were monitored from July 1982 to June 1983 by the Florida Solar Energy Center (FSEC) under a demonstration program for the Florida Public Service Commission. DHW systems selected for the program are located in four major population areas of Florida: Jacksonville, Orlando/Brevard County, Broward/Palm Beach Counties, and the Tampa Bay region. Twenty systems of each DHW type - conventional electric water heaters, heat pump water heaters, solar hot water systems, and waste heat recovery units - are metered to determine electricity use and hot water energy production. A microprocessor-based load profile recorder collects 15-minute interval data at each site and transfers it to an FSEC microcomputer over the telephone network twice a week. Analysis of a year's worth of data indicates that solar water heating systems operated with the highest average system efficiency and had the lowest average daily electrical load profile. Solar systems and waste heat recovery units had the least electrical demand on the Florida utility system summer peak day while solar and heat pump water heaters demonstrated the ability to shift or reduce the winter peak. Heat pump water heaters also demonstrated the best annual load factor but indicated problems with system reliability.
- Research Organization:
- Florida Solar Energy Center, Cape Canaveral (USA). Research and Development Div.
- OSTI ID:
- 6814764
- Report Number(s):
- FSEC-CR-90-83; ON: DE84901372
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
291000 -- Energy Planning & Policy-- Conservation
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320101* -- Energy Conservation
Consumption
& Utilization-- Residential Buildings-- (-1987)
APPLIANCES
BUILDINGS
COMPARATIVE EVALUATIONS
DEMAND
ENERGY DEMAND
ENERGY EFFICIENCY STANDARDS
EQUIPMENT
HEAT PUMPS
HEAT RECOVERY EQUIPMENT
HEATERS
PEAK LOAD
RECOMMENDATIONS
RELIABILITY
RESIDENTIAL BUILDINGS
SOLAR EQUIPMENT
SOLAR WATER HEATERS
STANDARDS
TAX CREDITS
WATER HEATERS