LARGO hot water system thermal performance test report

Technical Report · Wed Nov 01 00:00:00 EST 1978

DOI:https://doi.org/10.2172/6532928· OSTI ID:6532928

The thermal performance tests and results on the LARGO Solar Hot Water System under natural environmental conditions are presented. Some objectives of these evaluations are to determine the amount of energy collected, the amount of energy delivered to the household as contributed by solar power supplied to operate the system and auxiliary power to maintain tank temperature at proper level, overall system efficiency and to determine temperature distribution within the tank. The tests and evaluation were performed at the Marshall Space Flight Center solar test facility. The Solar Hot Water system is termed a ''Dump-type'' because of the draining system for freeze protection. The solar collector is a single glazed flat plate. An 82-gallon domestic water heater is provided as the energy storage vessel. Water is circulated through the collector and water heater by a 5.3 GPM capacity pump, and control of the pump motor is achieved by a differential temperature controller.

• Research Organization: Wyle Labs., Huntsville, AL (USA). Solar Energy Systems Div.
• DOE Contract Number: EX-76-A-29-1037
• OSTI ID: 6532928
• Report Number(s): DOE/NASA/CR-150841
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
SOLAR WATER HEATERS
PERFORMANCE TESTING
THERMAL EFFICIENCY
DRAIN-DOWN SYSTEMS
EVALUATION
FLAT PLATE COLLECTORS
FREEZE PROTECTION
HEAT STORAGE
PUMPS
TEMPERATURE CONTROL
APPLIANCES
CONTROL
EFFICIENCY
ENERGY STORAGE
HEATERS
SOLAR COLLECTORS
STORAGE
TESTING
WATER HEATERS
140907* - Solar Thermal Utilization- Water Heating