Actions for Holographic solar concentrator development (Phase I). Annual report, August 1, 1983-July 31, 1984. Draft final report

Email RIS file
Bookmark
Report an Issue

Holographic solar concentrator development (Phase I). Annual report, August 1, 1983-July 31, 1984. Draft final report

Published
United States : [publisher not identified], 1984
Springfield, Va.: National Technical Information Service, [approximately 1984]
Physical Description
microfiche : negative ; 11 x 15 cm

Availability

Browse Nearby on Shelf
I Want It
I Want It

Finding items...

Summary
Research investigations for the first year of the program to investigate the feasibility of utilizing a holographic optical element (HOE) for solar thermal concentrator development are summarized. The following conclusions are made: Point-focus and line-focus holograms have been constructed for both transmission and reflection. Reflection holograms have thus far been shown to have the highest diffraction efficiencies. However, the optical efficiency (reflected sunlight) is still too low. Transmission line-focus holograms are still being considered, but transmission point focus holograms do not appear to be effective, as their spectral spread is considerable. One of the prime results has been to show that holographic reconstruction of sunlight to a white focus (with red fringes) is achievable. The rainbow effect is essentially circumvented. Another key achievement has been the definite demonstration of high monochromatic diffraction efficiency (greater than 90 percent). Initial steps towards producing concentrated line- and point-focus sunlight have succeeded. Geometric concentration ratios of 32 to 64 for line-focus and 87 to 196 for point-focus have been achieved. Initial multiplexing efforts appear to be promising. Environmental test results to date do not show any significant degradation effects.
Report Numbers
DE84016521; FR-84-35/ASC
Other Subject(s)
Collection
NTIS collection.
Note
DOE contract number: AC03-83SF11941
OSTI Identifier 6475217
Research organization: Acurex Corp., Mountain View, CA (USA).
View MARC record | catkey: 47343674