- Additional Authors
- Description
- 1 v. (various pagings) : ill.
- Summary
- "Insolation radiometers (normal incidence pyrheliometers) are used to measure the solar radiation incident on solar concentrators for calibrating thermal power generation measurements. The measured insolation value is dependent on the atmospheric transparency, solar elevation angle, circumsolar radiation, and radiometer field of view. The radiant energy entering the thermal receiver is dependent on the same factors. The insolation value and the receiver input will be proportional if the concentrator and the radiometer have similar fields of view. This report describes one practical method for matching the field of view of a radiometer to that of a solar concentrator. The concentrator field of view can be calculated by optical ray tracing methods and the field of view of a radiometer with a simple shroud can be calculated by using geometric equations. The parameters for the shroud can be adjusted to provide an acceptable match between the respective fields of view. Concentrator fields of view have been calculated for a family of paraboloidal concentrators and receiver apertures. The corresponding shroud parameters have also been determined."--NTRS abstract.
- Series Statement
- NASA CR ; 176041
- Uniform Title
- NASA contractor report ; NASA CR-176041.
- Alternative Title
- View limiting shrouds for insolation radiometers
- Subject
- Note
- "May 15, 1985."
- "JPL publication 85-54."
- Bibliography (note)
- Includes bibliographical references (p. 6-1).
- Reproduction (note)
- Funding (note)
- Call Number
- GPO Microfiche NAS 1.26:176041
- OCLC
- marcive135496966
- Author
Dennison, E. W.
- Title
View-limiting shrouds for insolation radiometers [microform] / E.W. Dennison, G.F. Trentelman; prepared for U.S. Department of Energy through an agreement with National Aeronautics and Space Administration by Jet Propulsion Laboratory.
- Imprint
Pasadena, Calif. : National Aeronautics and Space Administration, Jet Propulsion Laboratory, California Institute of Technology ; [Springfield, Va. : National Technical Information Service, distributor, 1985]
- Series
NASA CR ; 176041
NASA contractor report ; NASA CR-176041.
- Bibliography
Includes bibliographical references (p. 6-1).
- Reproduction
Microfiche. [Washington, D.C. : National Aeronautics and Space Administration, 1985]., 1 microfiche.
- Funding
Contracts NAS7-918,
- Added Author
Trentelman, G. F.
Jet Propulsion Laboratory (U.S.)
United States. Department of Energy.
- Other Title
View limiting shrouds for insolation radiometers
- Other Form:
Paper version: Dennison, E. W. View-limiting shrouds for insolation radiometers. 1 v. (Various pagings). (OCoLC)702134274
- Gpo Item No.
0830-H-14 (MF)
- Sudoc No.
NAS 1.26:176041