Residential conservation demonstration program: domestic hot water
Four types of domestic hot water (DHW) systems installed in 80 homes throughout Florida are currently monitored 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, North Palm Beach/Ft. Lauderdale, 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 microcomputer-based data acquisition system collects 15-minute interval data at each site and returns it to FSEC over the telephone network semi-weekly. The data is analyzed to determine the average system efficiency and the time-of-day water and electricity demand profiles. Analysis for the Florida warm season of 1982 indicates that the solar systems and heat recovery units operated with the highest efficiency while the heat pumps performed approximately twice as efficiently as the conventional electric water heaters. The average electrical demand profiles of the solar and heat recovery groups were considerably lower than those for the conventional and heat pump water heaters. The profiles of the latter two systems were similar although the heat pump sample used more hot water than the conventional group. When completed in 1983, the study data will provide a full year comparison of the energy savings and time-of-day impact of each DHW system type.
- Research Organization:
- Florida Solar Energy Center, Cape Canaveral (USA)
- OSTI ID:
- 5525299
- Report Number(s):
- NP-4900251; ON: DE84900251
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
WATER HEATERS
ENERGY EFFICIENCY
DATA ACQUISITION SYSTEMS
ELECTRIC APPLIANCES
FLORIDA
HEAT PUMPS
HOUSES
SOLAR WATER HEATERS
WASTE HEAT UTILIZATION
APPLIANCES
BUILDINGS
EFFICIENCY
EQUIPMENT
FEDERAL REGION IV
HEATERS
NORTH AMERICA
RESIDENTIAL BUILDINGS
SOLAR EQUIPMENT
USA
WASTE PRODUCT UTILIZATION
140907* - Solar Thermal Utilization- Water Heating
320101 - Energy Conservation
Consumption
& Utilization- Residential Buildings- (-1987)