Experimental evidence of air mass cooling in the laboratory by infrared radiative exchanges is given. The experiments were carried put in a 50m3 chamber, with relative humidities less than 70%, in the absence of turbulent motions and haze. The measured values of the air temperature as a function of the height and time with decreasing floor temperature are compared with calculated values for which the radiative contribution is determined by the emissivity method. The difference, less than 10%, between experimental and theoretical coolings, gives evidence that the method of computing radiation flux divergence is sufficiently accurate for many meteorological purposes.
Laboratory experimental check of radiative air cooling theory
CORRADINI, Corrado;
1975
Abstract
Experimental evidence of air mass cooling in the laboratory by infrared radiative exchanges is given. The experiments were carried put in a 50m3 chamber, with relative humidities less than 70%, in the absence of turbulent motions and haze. The measured values of the air temperature as a function of the height and time with decreasing floor temperature are compared with calculated values for which the radiative contribution is determined by the emissivity method. The difference, less than 10%, between experimental and theoretical coolings, gives evidence that the method of computing radiation flux divergence is sufficiently accurate for many meteorological purposes.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
