Calculation of vapour-liquid equilibrium for LPG based on three-parameter equation of state
Abstract
The three-parameter equation of state and the Van Der Waals mixing rule are used in analyzing the mass and energy conversion of gas and liquid phase LPG in tank. A new three-parameter equation of state is proposed, the corresponding simulation of vapor and liquid phase equilibrium is applied in this research. Simulation results show that the new three-parameter equation of state can obtain the higher precision. The critical isotherm of LPG under fire is calculated, the relationship between c_Z and r_T is obtained, and the effect of c_Z on AAD% to predict the gas pressure, vapor volume, and liquid density is also obtained.
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