A simple frost-point humidity generator

A frost-point humidity generator intended for the range to is described and the results of initial testing at frost points above are given. Although it is simpler and smaller than other generators intended for low frost points, it produces a stream of air which, at , has a frost-point uncertainty of of within the range covered by the initial tests.

[1]  Russell G. Wylie and,et al.  Molecular Interaction of Water Vapor and Air , 1996 .

[2]  S. Bell,et al.  The NPL standard humidity generator: an analysis of uncertainty by validation of individual component performance , 1992 .

[3]  F. Incropera,et al.  Fundamentals of Heat Transfer , 1981 .

[4]  A. Wexler.  Vapor Pressure Formulation for Ice , 1977, Journal of Research of the National Bureau of Standards. Section A, Physics and Chemistry.

[5]  Arnold Wexler,et al.  Vapor Pressure Formulation for Water in Range 0 to 100 °C. A Revision , 1976, Journal of research of the National Bureau of Standards. Section A, Physics and chemistry.

[6]  R. Hyland.  A Correlation for the Second Interaction Virial Coefficients and Enhancement Factors for Moist Air. , 1975, Journal of research of the National Bureau of Standards. Section A, Physics and chemistry.

[7]  L. Greenspan.  Low Frost-Point Humidity Generator. , 1973, Journal of research of the National Bureau of Standards. Section A, Physics and chemistry.

[8]  Daniel P. Johnson.  Note on Diffusion of Vapor into Flowing Gas. , 1974, Journal of Research of the National Bureau of Standards Section A Physics and Chemistry.