Sustain solar system's efficiency by protecting against corrosion
In the last of a three part series, the use of water and nonaqueous heat transfer fluids in active solar systems is examined. Emphasis is on corrosion protection of the system. Scaling, caused by impurities in the water, is discussed as well as methods to prevent scaling. Interaction of water with metals (copper, aluminum, and steel) are described and suggestions are given for minimization of corrosion. Use of nonaqueous heat transfer fluids (hydrocarbons, silicones, and fluorocarbons) is reviewed briefly as well as interaction of these fluids with metals. It is concluded that long-life (> 20 year) of performance of the solar system is aided by: (1) proper design and installation; (2) choosing a heat transfer fluid compatible with the metal (3) in the system; and (3) periodic monitoring and maintenance of the fluid used. Recommendations are made for addition work in this area. 10 references. (MJJ)
- Research Organization:
- Los Alamos Scientific Labs., NM
- OSTI ID:
- 6110885
- Journal Information:
- Sol. Eng. Contract.; (United States), Vol. 1:4
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
14 SOLAR ENERGY
HEAT TRANSFER FLUIDS
MONITORING
PERFORMANCE TESTING
SOLAR EQUIPMENT
CORROSION PROTECTION
HOT-WATER SYSTEMS
HYDROCARBONS
ORGANIC FLUORINE COMPOUNDS
RECOMMENDATIONS
SCALE CONTROL
SILICONES
CONTROL
ENERGY SYSTEMS
EQUIPMENT
FLUIDS
GEOTHERMAL SYSTEMS
HYDROTHERMAL SYSTEMS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
POLYMERS
SILOXANES
TESTING
360105* - Metals & Alloys- Corrosion & Erosion
141000 - Solar Collectors & Concentrators
140907 - Solar Thermal Utilization- Water Heating
140901 - Solar Thermal Utilization- Space Heating & Cooling