Corrosion inhibitors for solar heating and cooling systems

Technical Report · Tue Feb 01 04:00:00 EST 1977

OSTI ID:7322475

Humphries, T S; Deramus, Jr, G E

Problems dealing with corrosion and corrosion protection of solar heating and cooling systems are discussed. A test program was conducted to find suitable and effective corrosion inhibitors for systems employing either water or antifreeze solutions for heat transfer and storage. Aluminum-mild-steel-copper-stainless steel assemblies in electrical contact were used to simulate a multimetallic system which is the type most likely to be employed. Several inhibitors show promise for this application. Effectiveness of corrosion inhibiting solutions containing sodium compounds for aluminum and mild steel sheets at room temperatures and elevated temperatures; variables include degree of chemical attack, solution pH, length to first visual attack, corrosive characteristics, weight loss, and temperature effects; no figures and 6 tables include numeric data.

• Research Organization: National Aeronautics and Space Administration, Huntsville, AL (USA). George C. Marshall Space Flight Center
• OSTI ID: 7322475
• Report Number(s): N-77-17198; NASA-TN-D-8409; M-199
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140901* -- Solar Thermal Utilization-- Space Heating & Cooling
141000 -- Solar Collectors & Concentrators
ALKALI METAL COMPOUNDS
ALLOYS
ALUMINIUM
CHROMIUM ALLOYS
COPPER
CORROSION INHIBITORS
CORROSION PROTECTION
CORROSION RESISTANT ALLOYS
ELEMENTS
FLUIDS
HEATING SYSTEMS
HYDROGEN COMPOUNDS
IRON ALLOYS
IRON BASE ALLOYS
METALS
OXYGEN COMPOUNDS
SODIUM COMPOUNDS
SOLAR COLLECTORS
SOLAR COOLING SYSTEMS
SOLAR HEATING SYSTEMS
STAINLESS STEELS
STEELS
TRANSITION ELEMENTS
WATER
WORKING FLUIDS