Peng–Robinson or Redlich–Kwong? Twu or Soave α-Function? Which Combination of Cubic Equation of State (CEoS) and α-Function Produces More Accurate and Consistent Results for Pure Components
Twaha Mohamed, Janusz Kozinski, Francisco Ramos-Pallares · 2024
Read Peng–Robinson or Redlich–Kwong? Twu or Soave α-Function? Which Combination of Cubic Equation of State (CEoS) and α-Function Produces More Accurate and Consistent Results for Pure Components by Twaha Mohamed, Janusz Kozinski, Francisco Ramos-Pallares (2024) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-11683624.txt.
Description
Twaha Mohamed, Janusz Kozinski, and Francisco Ramos-Pallares present a 2024 engineering study on equations that predict how pure substances behave. Cubic equations of state are workhorse tools in chemical plants. Each pairs with an alpha function that adjusts for temperature, and the pairing choice affects accuracy.
The team tested four pairings built from two equations, Peng-Robinson and Redlich-Kwong, and two alpha functions, Twu and Soave. They checked saturation pressure, heat of vaporization, and liquid heat capacity for 147 pure components. The set covered nonpolar, polar, and hydrogen-bonding substances below their critical points. They also scored how well each pairing stayed consistent across the phase diagram. The goal was one pairing that engineers can trust broadly.
Catalog record
| CREATOR | Twaha Mohamed, Janusz Kozinski, Francisco Ramos-Pallares |
|---|---|
| YEAR | 2024 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 77 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |