Mathematical and Computer Models For Thermodynamic Properties of Methane R-50, Ethylene R-1150, and Propylene R- 1270

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منشور: Jun 30, 2006
DOI: https://doi.org/10.25130/tjes.13.2.05
الكلمات المفتاحية:
Thermodynamic properties، hydrocarbon refrigerants

محتوى المقالة الرئيسي

Mohammed K. Mohammed
Mechanical Eng. Dept., Tikrit University, Iraq
Nassir D. Mokhlif
Mechanical Eng. Dept., Tikrit University, Iraq

الملخص

A set of computer methods for calculating densities, vapor pressures, enthalpies, internal energies and entropies of methane (R-50), ethylene (R-1150), and propylene (R-1270) to be described. Formulation and solution of equations for these thermodynamic properties to be presented first based on what published by ASHRAE. The data obtained from these subroutines showed very small and acceptable percentage errors when compared with ASHRAE data and what available in the literature. These results ensure that these subroutines are acceptable.

المقاييس

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تفاصيل المقالة

إصدار
مجلد 13 عدد 2 (2006): Vol. 13, No.2, 2006
القسم
Articles
Creative Commons License

هذا العمل مرخص بموجب Creative Commons Attribution 4.0 International License.

THIS IS AN OPEN ACCESS ARTICLE UNDER THE CC BY LICENSE http://creativecommons.org/licenses/by/4.0/

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المراجع

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Chan,C. and Haselden, G., 1981. ((Computer-Based Refrigerant Thermodynamic Properties, Part 3: Use of the program in the computation of standard refrigeration cycle)). Int. J. of Refrigeration, vol.4, no. 1. May, pp. 131- 134. DOI: https://doi.org/10.1016/0140-7007(81)90104-3

Majid J., Richard T., Richard B., and Robert D., 1986. ((Thermodynamic Properties of Ethylene from Freezing Line to 450 K at pressure to 260 MPa)). J.Phys.Chem.Ref.Data, vol. 15, No. 2. DOI: https://doi.org/10.1063/1.555753

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