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Title: Method and apparatus for simulating atmospheric absorption of solar energy due to water vapor and CO{sub 2}

A method and apparatus for improving the accuracy of the simulation of sunlight reaching the earth`s surface includes a relatively small heated chamber having an optical inlet and an optical outlet, the chamber having a cavity that can be filled with a heated stream of CO{sub 2} and water vapor. A simulated beam comprising infrared and near infrared light can be directed through the chamber cavity containing the CO{sub 2} and water vapor, whereby the spectral characteristics of the beam are altered so that the output beam from the chamber contains wavelength bands that accurately replicate atmospheric absorption of solar energy due to atmospheric CO{sub 2} and moisture. 8 figs.
Inventors:
Issue Date:
OSTI Identifier:
87715
Assignee:
Midwest Research Inst., Kansas City, MO (United States) CHO; SCA: 140100; PA: EDB-95:116375; SN: 95001431114
Patent Number(s):
US 5,426,569/A/
Application Number:
PAN: 8-206,933
Contract Number:
AC02-83CH10093
Resource Relation:
Other Information: PBD: 20 Jun 1995
Research Org:
Midwest Research Institute; National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; SOLAR SIMULATORS; DESIGN; OPERATION; WATER VAPOR; CARBON DIOXIDE; ABSORPTION SPECTRA; INTERMEDIATE INFRARED RADIATION; NEAR INFRARED RADIATION

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