The Temperatures of Evaporation of Water into Air: An Experimental Determination of the Laws Governing the Deviation of the Actual Temperature of Evaporation From the Theoretical

Abstract

Abstract This paper contains a report of experiments carried on at Cornell and at the Case School of Applied Science to show that under ideal conditions permitting true adiabatic saturation the wet-bulb temperature is actually the temperature of equilibrium represented in the heat-equilibrium equation, and also to show how and to what extent the wet-bulb temperature observed under ordinary conditions varies from the theoretical equilibrium temperature. Appendices deal with the process of adiabatic saturation, an approximation of the effect of radiation in raising the wet-bulb temperature above the theoretical, a description of the adiabatic saturator and the experimental methods, and a description of the apparatus and experimental methods used in determining the variation of error in the wet-bulb temperature with variation in air velocity and wet-bulb temperature.