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An experimental investigation of water evaporation into low-velocity air currents.

Author(s) : PAUKEN M. T., FARLEY B., JETER S. M., ABDEL-KHALIK S. I.

Summary

A standard evaporation pan was enclosed in a room in which the ambient temperature and humidity as well as the water temperature in the pan were controlled. A wind tunnel was designed to provide a controlled, uniform air current above the pan up to a velocity of 1.45 m/s. At a constant ambient temperature of 20 deg C, the evaporation rates were measured for various air velocities, relative humidities, and water temperatures. The data were used to develop an empirical correlation for the evaporation rate per unit surface area as a function of the vapour pressure difference and air velocity. For 95% confidence level, the error in the predicted evaporation rate was estimated to be less than about 16%.

Details

  • Original title: An experimental investigation of water evaporation into low-velocity air currents.
  • Record ID : 1996-1732
  • Languages: English
  • Source: ASHRAE Transactions.
  • Publication date: 1995/01
  • Document available for consultation in the library of the IIR headquarters only.

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