Search results
Results from the WOW.Com Content Network
The Peng–Robinson equation of state (PR EOS) was developed in 1976 at The University of Alberta by Ding-Yu Peng and Donald Robinson in order to satisfy the following goals: [10] The parameters should be expressible in terms of the critical properties and the acentric factor .
Hence, all cubic equations of state can be considered 'modified van der Waals equation of state'. There is a very large number of such cubic equations of state. For process engineering, cubic equations of state are today still highly relevant, e.g. the Peng Robinson equation of state or the Soave Redlich Kwong equation of state.
The Peng–Robinson equation of state relates the three interdependent state properties pressure P, temperature T, and molar volume V m.From the state properties (P, V m, T), one may compute the departure function for enthalpy per mole (denoted h) and entropy per mole (s): [2]
Peng–Robinson equation of state (named after D.-Y. Peng and D. B. Robinson [4]) has the interesting property being useful in modeling some liquids as well as real ...
This volume translation corrects systematic deviations of the Peng–Robinson equation of state (PR EOS). The translation constant is obtained by determining the difference between the calculated density at T r =0.7 and the real value of the density obtained from experimental data.
Reduced properties are also used to define the Peng–Robinson equation of state, a model designed to provide reasonable accuracy near the critical point. [2] They are also used to critical exponents , which describe the behaviour of physical quantities near continuous phase transitions.
Ding-Yu Peng is a professor of Chemical Engineering at the University of Saskatchewan. [1] Under the direction of Donald B. Robinson , Peng introduced a two-parameter cubic equation of state now known as the Peng–Robinson equation of state during the 1970s while a research engineer.
Retrieved from "https://en.wikipedia.org/w/index.php?title=Peng–Robinson–Stryjek–Vera_equation_of_state&oldid=599779211"