Run Module

The Bubble Point is the temperature and pressure at which the first bubble of a vapor appears from a liquid mixture. The Dew Point is the temperature and pressure at which the first “dew” comes out from a gas mixture.

The bubble point temperature may be obtained by heating a liquid at a constant pressure till a first “bubble” come out. It is also the temperature at which the vapor is in equilibrium with the liquid for the given composition. For a pure component, bubble point = boiling point = dew point.

There four (4) types of calculations are provided in this module:

• Bubble Point Temperature: to calculate temperature (T) and vapor compositions (y_i) by giving pressure (P) and liquid compositions (x_i)
• Bubble Point Pressure: to calculate pressure (P) and vapor compositions (y_i) by giving temperature (T) and liquid compositions (x_i)
• Dew Point Temperature: to calculate temperature (T) and liquid compositions (x_i) by giving pressure (P) and vapor compositions (y_i)
• Dew Point Pressure: to calculate pressure (P) and liquid compositions (x_i) by giving temperature (T) and vapor compositions (y_i)

There are twelve (12) equations of state available for selection combined with the certain mixing rules：

• Soave-Redlich-Kwong (SRK), 1972
• Peng-Robinson (PR), 1978
• Peng-Robinson (PR), 1976
• Peng-Robinson (Magoulas & Tassios revision), 1990
• Adachi-Lu-Sugie (ALS), 1983
• Patel-Teja, 1982
• Valderrama-Patel-Teja, 1990
• Schmidt-Wenzel, 1980
• Yu-Lu, 1987
• Modified Du-Guo, 1989
• Trebble-Bishnoi, 1987
• Salim Modified Trebble-Bishnoi, 1994