Details
| Translated title of the contribution | Système simple d'équations d'état pour le calcul de processus et application au R134a et au R152a |
|---|---|
| Original language | English |
| Pages (from-to) | 217-222 |
| Number of pages | 6 |
| Journal | International Journal of Refrigeration |
| Volume | 14 |
| Issue number | 4 |
| Publication status | Published - Jul 1991 |
Abstract
This paper reports a useful set of equations which enables the consistent and reliable calculation of thermodynamic properties. This set of equations consists of a vapour pressure equation, an equation for the gas phase p, v, T properties, an equation giving the saturated liquid densities and an equation for the specific heat capacity in the ideal gas domain. These equations are of a simple structure because the critical region is excluded. Therefore, for a preliminary investigation only few experimental data points are required for parameter regression, which makes this set of equations suitable for 'new' refrigerants. The relationships for enthalpy and entropy are derived from these equations and evaluation procedures are summarized. Examples are given for the refrigerants R134a and R152a.
Keywords
- alternative refrigerants, equations of state, thermodynamic properties
ASJC Scopus subject areas
- Engineering(all)
- Building and Construction
- Engineering(all)
- Mechanical Engineering
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In: International Journal of Refrigeration, Vol. 14, No. 4, 07.1991, p. 217-222.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - A simple set of equations of state for process calculations and its application to R134a and R152a
AU - Kabelac, S.
N1 - Copyright: Copyright 2014 Elsevier B.V., All rights reserved.
PY - 1991/7
Y1 - 1991/7
N2 - This paper reports a useful set of equations which enables the consistent and reliable calculation of thermodynamic properties. This set of equations consists of a vapour pressure equation, an equation for the gas phase p, v, T properties, an equation giving the saturated liquid densities and an equation for the specific heat capacity in the ideal gas domain. These equations are of a simple structure because the critical region is excluded. Therefore, for a preliminary investigation only few experimental data points are required for parameter regression, which makes this set of equations suitable for 'new' refrigerants. The relationships for enthalpy and entropy are derived from these equations and evaluation procedures are summarized. Examples are given for the refrigerants R134a and R152a.
AB - This paper reports a useful set of equations which enables the consistent and reliable calculation of thermodynamic properties. This set of equations consists of a vapour pressure equation, an equation for the gas phase p, v, T properties, an equation giving the saturated liquid densities and an equation for the specific heat capacity in the ideal gas domain. These equations are of a simple structure because the critical region is excluded. Therefore, for a preliminary investigation only few experimental data points are required for parameter regression, which makes this set of equations suitable for 'new' refrigerants. The relationships for enthalpy and entropy are derived from these equations and evaluation procedures are summarized. Examples are given for the refrigerants R134a and R152a.
KW - alternative refrigerants
KW - equations of state
KW - thermodynamic properties
UR - http://www.scopus.com/inward/record.url?scp=0026189033&partnerID=8YFLogxK
U2 - 10.1016/0140-7007(91)90006-3
DO - 10.1016/0140-7007(91)90006-3
M3 - Article
AN - SCOPUS:0026189033
VL - 14
SP - 217
EP - 222
JO - International Journal of Refrigeration
JF - International Journal of Refrigeration
SN - 0140-7007
IS - 4
ER -