Passive solar D. H. W. performance with lower costs in freezing climates

Conference · Thu Jan 01 00:00:00 EST 1981 · Proc. Annu. Meet. - Am. Sect. Int. Sol. Energy Soc.; (United States)

OSTI ID:6070431

Sansone, P ^[1]; Riley, B

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1. Solar Resource Service, Forest Grove, OR

Simple, freeze-protected, passive solar domestic hot water (SDHW) systems for colder regions of the world are possible without sacrificing system performance or complicating the installation. The use of pumps, controls and solenoid valves result in high parasitic energy consumption. Indirect thermosiphon systems delivered performance comparable to indirect active systems operated under identical conditions when parasitic energy was considered. Standard hot water tanks can be retrofitted with jacket-on-tank heat exchangers without reducing system efficiencies below standard commercial solar tanks. Retrofitted exchange jackets performed well under thermosiphon and active collection modes. Efficient, low-cost, built-to-code systems are possible using standard water heater tanks, retrofit exchanger jackets, and standard manifold type collectors plumbed in a closed-loop configuration.

• OSTI ID: 6070431
• Report Number(s): CONF-810925-
• Journal Information: Proc. Annu. Meet. - Am. Sect. Int. Sol. Energy Soc.; (United States), Vol. 6; Conference: 6. national passive solar conference, Portland, OR, USA, 8 Sep 1981
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
PASSIVE SOLAR WATER HEATERS
COMPARATIVE EVALUATIONS
PERFORMANCE TESTING
THERMOSYPHONS
EFFICIENCY
ENERGY CONSUMPTION
EXPERIMENTAL DATA
FLAT PLATE COLLECTORS
HEAT EXCHANGERS
RECOMMENDATIONS
RETROFITTING
SOLAR FRACTION
TANKS
APPLIANCES
CONTAINERS
DATA
EQUIPMENT
HEATERS
INFORMATION
NUMERICAL DATA
SOLAR COLLECTORS
SOLAR EQUIPMENT
SOLAR WATER HEATERS
TESTING
WATER HEATERS
140907* - Solar Thermal Utilization- Water Heating