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ppT measurements of polyethylene glycol dimethylethers between 278.15 and 328.15 K at pressures to 12 MPa
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Orientador(es)
Resumo(s)
In this paper we present a new experimental apparatus designed to measure
pressure density temperature ( p\T) properties with a high-pressure vibrating
tube densimeter. Data reliability has been verified by comparing our experimental
results for methanol, n-heptane, toluene, and HFC-134a with literature data. In
this work we also report new experimental densities from 278.15 to 328.15 K, and
up to 12 MPa, of triethylene glycol dimethylether (TrEGDME) and tetraethylene
glycol dimethylether (TEGDME). The isobaric thermal expansion coefficients,
isothermal compressibility, and internal pressure have been calculated. The
dependence of these properties on the length of polyethylene glycol dimethyl ether, CH3O ((CH2)2O)n CH3 , is analyzed.
Descrição
Palavras-chave
Density High pressure Internal pressure Isobaric thermal expansion coefficients Isothermal compressibilities Liquid Polyethylene glycol dimethylethers . Faculdade de Ciências Exatas e da Engenharia
Contexto Educativo
Citação
Comuñas, M. J. P., López, E. R., Pires, P., García, J., & Fernández, J. (2000). ppT measurements of polyethylene glycol dimethylethers between 278.15 and 328.15 K at pressures to 12 MPa. International journal of thermophysics, 21(4), 831-851. https://doi.org/10.1023/A:1006606122944
Editora
Springer