Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.3/1276
Título: The density of environmentally acceptable refrigerants and their mixtures: its measurement, correlation and estimation.
Autor: Fialho, Paulo
Sousa, Ana T.
Nieto de Castro, Carlos A.
Palavras-chave: Correlation
Density
Estimation
Measurements
Mistures
Refrigerants
Data: 1996
Editora: Pion
Citação: Fialho, P., Sousa, A., Nieto de Castro, C. N. (1995/1996). "The density of environmentally acceptable refrigerants and their mixtures: its measurement, correlation, and estimation". «High Temperatures-High Pressures», 27/28(5): 569-582. http://dx.doi.org/doi:10.1068/hte10.
Resumo: The density of liquid refrigerants is very important for the design of compression cycles in the refrigeration and air-conditioning industries. The density of pure liquids as well as binary mixtures proposed as alternatives to the chlorofluorocarbons (CFCs) [the hydrochlorofluorocarbons (HCFCs) and hydrofluorocarbons (HFCs)] is not well known, in spite of some international effort in recent years to measure them. Some of the methods of easurement, correlation and estimation of the densities of pure HCFCs, HFCs and binary mixtures are reviewed. The correlation of the densities is based on the hard-sphere - DeSantis equation of state (HSDS), the misture being assumed to obey a 1-fluid approach. The equation is shown to be universal for pure fluids and suitable for estimating their densities within 1% for T/Tc < 0.9, where Tc is critical temperature, for both Class B and Class A refrigerants. The estimation scheme was extended to binary mixtures, using only pure component properties and combination rules for 'pseudo' critical parameters, with the same uncertainty.
Descrição: Copyright © 1996 a Pion publication.
Peer review: yes
URI: http://hdl.handle.net/10400.3/1276
ISSN: 0018-1544 (Print)
1472-3441 (Online)
Versão do Editor: http://www.hthpweb.com/abstract.cgi?id=hte10
Aparece nas colecções:DCA - Artigos em Revistas Internacionais / Articles in International Journals

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