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Title: Turntable/collector concept for DOE/General Electric photovoltaic concentrator application experiment

Abstract

As part of the Department of Energy's PRDA-35 program, General Electric has entered into the fabrication and construction phase for a Photovoltaic Concentrator Application Experiment (PCAE) to be located on a two-acre site within Sea World Park near Orlando, Florida. The PCAE will consist of three turntable solar arrays, each containing twenty-four 7' x 30' parabolic trough concentrators. Vee-mounted solar cells connected in series will produce a peak output of 90 kilowatts at a nominal voltage of 360 Vdc. The solar cells will be actively cooled by a fluid loop, and the accumulated thermal energy will be used to operate a lithium-bromide absorption chiller. The mechanical and structural design of the azimuth-tracking turntable and parabolic trough collectors are highlighted. The concept selected for this application is based on field erection and assembly of these elements. The unique feature of the collectors is the means by which the relatively low weight-to-area ratio of 3 lbs/ft/sup 2/ is achieved while high torsional stiffness is maintained. This is necessary to provide the 35:1 concentration ratio for operation in wind speeds up to 35 mph. An elevation tracking system is used in which all 24 collectors are driven by a single drive unit.

Authors:
;
Publication Date:
Research Org.:
General Electric Co., Philadelphia, PA
OSTI Identifier:
5982989
Report Number(s):
CONF-810509-(Vol.2)
Journal ID: CODEN: PMSID
Resource Type:
Conference
Journal Name:
Proc. Annu. Meet. - Am. Sect. Int. Sol. Energy Soc.; (United States)
Additional Journal Information:
Journal Volume: 4.2; Conference: Annual conference of the International Solar Energy Society, Philadelphia, PA, USA, 26 May 1981
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; CONCENTRATOR SOLAR CELLS; SOLAR TRACKING; SOLAR CELL ARRAYS; DESIGN; COOLING SYSTEMS; INSTALLATION; PARABOLIC TROUGH REFLECTORS; PERFORMANCE; POSITIONING; TILT MECHANISMS; DIRECT ENERGY CONVERTERS; ENERGY SYSTEMS; EQUIPMENT; PARABOLIC REFLECTORS; PHOTOELECTRIC CELLS; PHOTOVOLTAIC CELLS; SOLAR CELLS; SOLAR CONCENTRATORS; SOLAR EQUIPMENT; SOLAR REFLECTORS; 140600* - Solar Energy- Photovoltaic Power Systems

Citation Formats

Kirpich, A, and Concannon, M. Turntable/collector concept for DOE/General Electric photovoltaic concentrator application experiment. United States: N. p., 1981. Web.
Kirpich, A, & Concannon, M. Turntable/collector concept for DOE/General Electric photovoltaic concentrator application experiment. United States.
Kirpich, A, and Concannon, M. 1981. "Turntable/collector concept for DOE/General Electric photovoltaic concentrator application experiment". United States.
@article{osti_5982989,
title = {Turntable/collector concept for DOE/General Electric photovoltaic concentrator application experiment},
author = {Kirpich, A and Concannon, M},
abstractNote = {As part of the Department of Energy's PRDA-35 program, General Electric has entered into the fabrication and construction phase for a Photovoltaic Concentrator Application Experiment (PCAE) to be located on a two-acre site within Sea World Park near Orlando, Florida. The PCAE will consist of three turntable solar arrays, each containing twenty-four 7' x 30' parabolic trough concentrators. Vee-mounted solar cells connected in series will produce a peak output of 90 kilowatts at a nominal voltage of 360 Vdc. The solar cells will be actively cooled by a fluid loop, and the accumulated thermal energy will be used to operate a lithium-bromide absorption chiller. The mechanical and structural design of the azimuth-tracking turntable and parabolic trough collectors are highlighted. The concept selected for this application is based on field erection and assembly of these elements. The unique feature of the collectors is the means by which the relatively low weight-to-area ratio of 3 lbs/ft/sup 2/ is achieved while high torsional stiffness is maintained. This is necessary to provide the 35:1 concentration ratio for operation in wind speeds up to 35 mph. An elevation tracking system is used in which all 24 collectors are driven by a single drive unit.},
doi = {},
url = {https://www.osti.gov/biblio/5982989}, journal = {Proc. Annu. Meet. - Am. Sect. Int. Sol. Energy Soc.; (United States)},
number = ,
volume = 4.2,
place = {United States},
year = {1981},
month = {1}
}

Conference:
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