The prediction of vapour–liquid equilibrium behaviour of HFC blend–oil mixtures from commonly available data

This paper addresses the problem of achieving accurate calculations for vapour–liquid equilibrium behaviour in the presence of the (new) oils in use with HFC refrigerants by introducing a correlation which depends only on the gas constant, critical temperature and molecular weight of the blend constituent and the molecular weight of the oil; i.e. the method depends on commonly available data and not a specialised measurements. The work is believed to be of value to plant designers and research workers.