SRW Peng-Robinson Equation of State (Schwartzentruber-Renon-Watanasiri alpha function)

The Equation of State is described in:

J. Schwartzentruber, H. Renon, and S. Watanasiri, "K-values for Non-Ideal Systems:An Easier Way," Chem. Eng., March 1990, 118-124.

Details of the equation implementation in TDE are provided here.

Parameters determined in TDE are as follows:

  • critical temperature: Tc
  • critical pressure: pc
  • acentric factor: w
  • volume translation term: vt

Equation parameters are available in several formats from TDE: Equation Parameters in TDE

annotated equation parameters screen showing critical temperature(K), critical pressure(kPa), and acentric factor to the right of Constants: and fitted volume translation parameter(m3/kmol)