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Title: Solar tracking system

Abstract

Solar tracking systems, as well as methods of using such solar tracking systems, are disclosed. More particularly, embodiments of the solar tracking systems include lateral supports horizontally positioned between uprights to support photovoltaic modules. The lateral supports may be raised and lowered along the uprights or translated to cause the photovoltaic modules to track the moving sun.

Inventors:
;
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1261595
Patent Number(s):
9,391,557
Application Number:
14/063,847
Assignee:
Sandia Corporation (Albuquerque, NM) SNL-A
DOE Contract Number:
AC04-94AL85000
Resource Type:
Patent
Resource Relation:
Patent File Date: 2013 Oct 25
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; 42 ENGINEERING

Citation Formats

Okandan, Murat, and Nielson, Gregory N. Solar tracking system. United States: N. p., 2016. Web.
Okandan, Murat, & Nielson, Gregory N. Solar tracking system. United States.
Okandan, Murat, and Nielson, Gregory N. 2016. "Solar tracking system". United States. doi:. https://www.osti.gov/servlets/purl/1261595.
@article{osti_1261595,
title = {Solar tracking system},
author = {Okandan, Murat and Nielson, Gregory N.},
abstractNote = {Solar tracking systems, as well as methods of using such solar tracking systems, are disclosed. More particularly, embodiments of the solar tracking systems include lateral supports horizontally positioned between uprights to support photovoltaic modules. The lateral supports may be raised and lowered along the uprights or translated to cause the photovoltaic modules to track the moving sun.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 2016,
month = 7
}

Patent:

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  • This patent describes a pressurized water drive system to move a power transmission in one direction or a opposite direction, comprising: (a) two sealed sections of compact, collapsible, flat hose arranged in a line, each section having one end to be joined to an end of the other section, and each section having a second end having an orifice, and each section being arranged in up and down side by side portions for endwise compression of the hose section. The hose section under compression has water contained in the hose section drained out of the end orifice, where the othermore » section is expanded by receiving water under pressure through the other section orifice; (b) a power take off secured to the two sealed sections where they are joined together; (c) a housing within which the two sealed sections expand and contract, having an elongated opening to accommodate the transitory movement of the power take off, and having openings to provide access to the orifices on the two sealed sections; (d) a water control assembly to direct pressurized water alternately to respective orifices of the two sealed sections of one section of the flat hose and thereby expanding the flat hose, moving the power take off in one direction or in the opposite direction by expanding the other section of flat hose; and (e) a power transmission, connected to the power take off, to transmit the motion of the power take off to solar energy collectors in their tracing of the sun.« less
  • Solar tracking apparatus for a solar energy system comprises at least one chamber containing a volatile fluid, a shading arrangement for controlling the degree to which the at least one chamber is exposed to the sun in dependence on the position of the sun so as to control the extent to which the fluid is vaporized due to solar heating of the at least one chamber, and apparatus for coupling the expansive force generated by vaporization of the fluid to a work piece to control the position , orientation, and/or operation thereof. Preferably, the solar tracking apparatus comprises a basemore » pivotably mounted with respect to a pivot axis, first and second chambers mounted to the base in counterbalancing relationship with respct to the pivot axis, a conduit connecting the chambers for transfer to fluid therebetween, a volatile fluid disposed in the chambers for transfer therebetween, and a shading arrangement for controlling the degree to which each of the chambers is exposed to the sun such that a differential vapor pressure is created therebetween in dependence on the position of the sun which causes a predetermined transfer of the fluid between the chambers so as to change the proportion of the fluid disposed within each of the chambers and thereby cause the base to pivot into a predetermined orientation with respect to the position of the sun.« less
  • A sensor for use in aligning a solar collector system wherein the sensor includes a radiation detector providing signals responsive to impinging radiation and means for focusing the radiation into an astigmatic image positioned on the detector when the system is misaligned.
  • A tracking lens system for solar collectors or skylights is described consisting of an array of condensing lenses, a movable array of diverging lenses, and a second array of condensing lenses. By moving the array of diverging lenses, sunlight incident from any small angle can be tracked. The light leaving the tracking lens system can be parallel rays coaxial with the lens system, or can be focused upon a collecting means.
  • A tracking system is provided for pivotally mounted spaced-apart solar collectors. A pair of cables is connected to spaced-apart portions of each collector, and a driver displaces the cables, thereby causing the collectors to pivot about their mounting, so as to assume the desired orientation. The collectors may be of the cylindrical type as well as the flat-plate type. Rigid spar-like linkages may be substituted for the cables. Releasable attachments of the cables to the collectors is also described, as is a fine tuning mechanism for precisely aligning each individual collector.