Effects of Temperature, Pressure and Water Vapor on Gas Phase Infrared Absorption by CO2
نویسندگان
چکیده
Full description of an absorption band is complex, but approximate expressions can be used over limited ranges of absorber mole fraction, pressure and pathlength. It can be shown that the “non-overlapping line approximation” applies at ambient pressure and CO2 mole fraction over the short pathlengths found in LI-COR infrared gas analyzers (Wolfe and Zissis, 1978). This leads to a “scaling law” that allows absorption measured under one set of conditions to be scaled to other conditions (Jamieson, et al., 1963),
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