Results 51 to 60 of about 1,938 (181)

A Transmittance-optimized, Point-focus Fresnel Lens Solar Concentrator [PDF]

open access: yes, 1984
The development of a point-focus Fresnel lens solar concentrator for high-temperature solar thermal energy system applications is discussed. The concentrator utilizes a transmittance-optimized, short-focal-length, dome-shaped refractive Fresnel lens as ...
Oneill, M. J.
core   +1 more source

Solar radiation observation stations with complete listing of data archived by the National Climatic Center, Asheville, North Carolina and initial listing of data not currently archived [PDF]

open access: yes
A listing is provided of organizations taking solar radiation data, the 166 stations where observations are made, the type of equipment used, the form of the recorded data, and the period of operation of each station.
Carter, E. A.   +3 more
core   +1 more source

Interim solar cell testing procedures for terrestrial applications [PDF]

open access: yes
This report presents an interim draft of procedures for testing solar cells for terrestrial applications that resulted from the terrestrial photovoltaic workshop sessions.
Brandhorst, H. W., Jr.   +2 more
core   +4 more sources

A probabilistic model of insolation for the Mojave Desert area [PDF]

open access: yes
A discussion of mathematical models of insolation characteristics suitable for use in analysis of solar energy systems is presented and shows why such models are essential for solar energy system design.
Hester, O. V., Reid, M. S.
core   +1 more source

NREL Pyrheliometer Comparisons: 22 September - 3 October 2008 [PDF]

open access: yes, 2009
NREL Pyrheliometer Comparisons (NPCs) are held annually at the Solar Radiation Research Laboratory (SRRL) in Golden, Colorado. Open to all pyrheliometer owner/operators, the NPC provides an opportunity to determine the unique WRR transfer factor for each participating pyrheliometer.
Stoffel, T., Reda, I.
openaire   +2 more sources

Sensitivity of solar-cell performance to atmospheric variables. 2: Dissimilar cells at several locations [PDF]

open access: yes
Several solar cells having dissimilar spectral response curves and cell construction were measured at various locations in the United States to determine sensitivity of cell performance to atmospheric water vapor and turbidity.
Hart, R. E., Klucher, T. M.
core   +1 more source

Spectrophotovoltaic orbital power generation [PDF]

open access: yes
A subscale model of a photovoltaic power system employing spectral splitting and 1000:1 concentration was fabricated and tested. The 10-in. aperture model demonstrated 15.5% efficiency with 86% of the energy produced by a GaAs solar cell and 14% of the ...
Carroll, J., Knowles, G.
core   +1 more source

Irradiação global, direta e difusa, para a região de Cascavel, Estado do Paraná = Global, direct and diffuse irradiation in the region of Cascavel, Paraná State

open access: yesActa Scientiarum: Technology, 2006
O presente trabalho apresenta um estudo sobre os níveis das irradiações global, direta e difusa incidentes na superfície terrestre, a irradiação incidente no topo da atmosfera e a insolação relativa mensal, para a cidade de Cascavel-PR. As componentes da
Patricia Aparecida de Oliveira Drechmer   +1 more
doaj  

Pyrheliometric comparisons at the JPL Table Mountain Facility [PDF]

open access: yes
Calibration and comparative measurements of pyrheliometric instruments using natural ...
Drummond, A. J., Laue, E. G.
core   +1 more source

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