Study On HFO-1234ze?E? Saturation Vapor Pressure Equation And CO₂ Mixture Thermodynamic Properties

With the greenhouse effect has become increasingly prominent,the control of the greenhouse effect has been forced on the eyebrow.Greenhouse gases mainly include a the large amount of CO₂ produced by the combustion of fuels and the use of a large number of refrigerants.At present,the control of CO₂ production is mainly through the CCS technology,the refrigerant is mainly looking for a new type of environmentally friendly alternative refrigerant.However,the lack of experimental data of the CO₂ mixture pvTx limits the development of CCS.HFO-1234 ze as the most promising alternative refrigerant industry is also due to the lack of a comprehensive understanding of its physical parameters,restricting its application and promotion.In order to fill these shortcomings,the pvTx properties of CO₂ mixtures were studied experimentally,and the vapor pressure equation of HFO-1234 ze was studied theoretically in this paper.The data of HFO-1234ze?E?saturated vapor pressure in recent years were studied,and a new four-stage Wanger type HFO-1234ze?E?vapor pressure equation with high accuracy and wide application was obtained.The applicable temperature range of the special equation is 232.990 380.002 K,the average relative deviation of the fitting data is-0.02%.According to the new equation obtained by fitting,the normal boiling point and eccentricity factor of HFO-1234ze?E?are obtainedAccording to the Burnett-isochoric method,the pvTx property of CO₂ / Ar was accurately measured by gas phase pvTx property experiment system.The 72 groups of high precision experiments were carried out in the range of 303.147 373.137 K,274.68 6874.14 kPa,and expanded the existing data range.And the initial density,the volume constant and the second Vary coefficient and the third Vary coefficient of the working medium are calculated.On this basis,a three-truncated Vary equation with high accuracy is obtained.