Omnium-G Parabolic Dish Optical Efficiency: A Comparison of Two Independent Measurement Techniques

Technical Report · Wed Oct 01 00:00:00 EDT 1980

DOI:https://doi.org/10.2172/6774230· OSTI ID:6774230

Measurements made at SERI of the optical efficiency of the Omnium-G parabolic dish concentrator are described. Two independent techniques were used: the cold-water calorimeter method and the heat of fusion method. Results from both techniques agree quite well and indicate that the optical efficiency for a 10-cm receiver aperture is 25%. Optical efficiency measured in early 1979 was 37%, and in mid 1979 it had degraded to 21%. An optical alignment procedure is described that resulted in the increase in optical efficiency from 21% to the current value of 25%.

• Research Organization: Solar Energy Research Inst. (SERI), Golden, CO (United States)
• Sponsoring Organization: USDOE Office of Energy Efficiency and Renewable Energy (EERE)
• DOE Contract Number: AC36-08GO28308
• OSTI ID: 6774230
• Report Number(s): SERI/TR-631-544
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
PARABOLIC DISH COLLECTORS
EFFICIENCY
PERFORMANCE TESTING
ALIGNMENT
CALORIMETERS
COMPARATIVE EVALUATIONS
FUSION HEAT
MEASURING METHODS
PARABOLIC REFLECTORS
CONCENTRATING COLLECTORS
ENTHALPY
EQUIPMENT
MEASURING INSTRUMENTS
PARABOLIC COLLECTORS
PHYSICAL PROPERTIES
SOLAR COLLECTORS
SOLAR CONCENTRATORS
SOLAR EQUIPMENT
SOLAR REFLECTORS
TESTING
THERMODYNAMIC PROPERTIES
TRANSITION HEAT
solar energy
parabolic dish collectors
efficiency
performance testing
alignment
calorimeters
comparative evaluations
fusion heat
measuring methods
parabolic reflectors
concentrating collectors
enthalpy
equipment
measuring instruments
parabolic collectors
physical properties
solar collectors
141000* - Solar Collectors & Concentrators