skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Solar energy collecting apparatus

Abstract

A solar energy collecting apparatus comprises an elongated, trough-like reflector for reflecting solar energy to an elongated focal region. The reflector, which partially defines an enclosed space, includes adjacent first and second portions that extend in mutually parallel relation, each portion including an inner reflective surface having a generally parabolic cross-sectional shape that comprises a vertex and opposing side walls diverging from the vertex. One of the side walls of the first portion intersects one of the side walls of the second portion and thereby defines a peak or cusp that projects inwardly of the enclosed space. An absorber is mounted in the focal region in spaced relation to the peak to receive solar energy directly incident thereon and reflected thereto by the reflector and comprises a tubular member for conducting a heat transferring medium therethrough. Two vanes are associated with the tubular member, each vane making an angle of less than 180* with the other. One vane projects to a position laterally adjacent and spaced from one side of the peak and the other projects to a position laterally adjacent and spaced from the other side of the peak so that no straight-line path is available for light betweenmore » the peak and absorber. Accordingly the vanes block and absorb solar energy reflected from both the first and second portions of the reflector to the region between the peak and the absorber. A method of manufacturing this solar energy collecting apparatus is also disclosed.« less

Inventors:
Publication Date:
OSTI Identifier:
6656961
Patent Number(s):
US 4340034
Assignee:
EDB-83-015351
Resource Type:
Patent
Resource Relation:
Patent File Date: Filed date 17 Sep 1979; Other Information: PAT-APPL-075891
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; CONCENTRATING COLLECTORS; DESIGN; MANUFACTURING; SOLAR ABSORBERS; SOLAR REFLECTORS; VANES; EQUIPMENT; SOLAR COLLECTORS; SOLAR CONCENTRATORS; SOLAR EQUIPMENT; 141000* - Solar Collectors & Concentrators

Citation Formats

Hopper, T P. Solar energy collecting apparatus. United States: N. p., 1982. Web.
Hopper, T P. Solar energy collecting apparatus. United States.
Hopper, T P. Tue . "Solar energy collecting apparatus". United States.
@article{osti_6656961,
title = {Solar energy collecting apparatus},
author = {Hopper, T P},
abstractNote = {A solar energy collecting apparatus comprises an elongated, trough-like reflector for reflecting solar energy to an elongated focal region. The reflector, which partially defines an enclosed space, includes adjacent first and second portions that extend in mutually parallel relation, each portion including an inner reflective surface having a generally parabolic cross-sectional shape that comprises a vertex and opposing side walls diverging from the vertex. One of the side walls of the first portion intersects one of the side walls of the second portion and thereby defines a peak or cusp that projects inwardly of the enclosed space. An absorber is mounted in the focal region in spaced relation to the peak to receive solar energy directly incident thereon and reflected thereto by the reflector and comprises a tubular member for conducting a heat transferring medium therethrough. Two vanes are associated with the tubular member, each vane making an angle of less than 180* with the other. One vane projects to a position laterally adjacent and spaced from one side of the peak and the other projects to a position laterally adjacent and spaced from the other side of the peak so that no straight-line path is available for light between the peak and absorber. Accordingly the vanes block and absorb solar energy reflected from both the first and second portions of the reflector to the region between the peak and the absorber. A method of manufacturing this solar energy collecting apparatus is also disclosed.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1982},
month = {7}
}