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The viscosity of liquid R134a
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Orientador(es)
Resumo(s)
The paper reports new measurements of the viscosity of liquid R134a over
the temperature range 235 to 343 K and pressures up to 50MPa. The
measurements have been carried out in a vibrating-wire viscometer calibrated
with respect to the viscosity of several liquid hydrocarbons. It is estimated that
the uncertainty in the viscosity data reported is +0.6%. The data therefore have
a lower uncertainty than that of earlier measurements of the viscosity of this
environmentally acceptable regrigerant. The viscosity data have been represented
as a function of density by means of a formulation based upon the rigid,
hard-sphere theory of dense fluids with a maximum deviation of _+0.3%. This
representation allows the present body of experimental data to be extended to
regions of thermodynamic state not covered by the measurements.
Descrição
Palavras-chave
High pressure Refrigerants R134a Viscosity
Contexto Educativo
Citação
Oliveira, Carla Padrel de; Wakeham, William A.- The viscosity of liquid R134a. "International Journal of Thermophysics" [Em linha]. ISSN 0195-928X (Print) 1572-9567 (Online). Vol. 14, nº 1 (1993). p. 33-44
Editora
Plenum Publishing Corporation