The viscosity of R32 and R125 at saturation

• Autor(es): Oliveira, Carla Padrel de ; Wakeham, W. A.
• Data: 1993
• Identificador Persistente: http://hdl.handle.net/10400.2/2114
• Origem: Repositório Aberto da Universidade Aberta
• Assunto(s): Refrigerants; Viscosity; R32; R125
• Tipo de Documento: Artigo
• Idioma: Inglês

Descrição

This paper reports new measurements of the viscosity of R32 and R125, in both the liquid and the vapor phase, over the temperature range 220 to 343 K near the saturation line. The measurements in both liquid and vapor phases have been carried out with a vibrating-wire viscometer calibrated with respect to standard reference values of viscosity. It is estimated that the uncertainty of the present viscosity data is one of 0.5-1%, being limited partly by the accuracy of the available density data. The experimental data have been represented by polynomial functions of temperature for the purposes of interpolation.