Modified Equation of State Applied to Refrigerants

Journal of Physical Chemistry & Eleectrochemistry

مقاله 4، دوره 4، شماره 2، مهر و آبان 2016، صفحه 131-135   

نوع مقاله: Research Paper

نویسندگان

P Khorramzadeh¹؛ nima Karachi¹؛ seyyed mostafa hosseini²

¹Department of Chemistry, Marvdasht Branch, Islamic Azad University, Marvdasht, Iran

²Young Researchers and Elite Club, Marvdasht Branch, Islamic Azad University, Marvdasht, Iran

تاریخ دریافت: 05 مهر 1393،  تاریخ بازنگری: 06 دی 1393،  تاریخ پذیرش: 05 مهر 1394 

چکیده

An analytical equation of state has been previously modified by Papari et al. for representing the volumetric properties of molecular fluids. However the performance of that EOS has not been yet well investigated for refrigerant fluids. This study extended that equation to 19 liquid refrigerants to predict their densities at isothermal and saturated states. Two temperature-independent parameters appearing in the modified EOS are closely related to critical point properties of refrigerant fluids. Our results showed that, the proposed EOS can predict well isothermal and saturated liquid destinies of studied refrigerants over the temperature and pressure range from 137-400 K and 0.001-1870 bar, with AADs equal to 2.16% and 2.66%, respectively.

کلیدواژه‌ها

Equation of state؛ Refrigerant؛ Liquid density