ScholarLens Back to search
2010•Xi'an Jiaotong Daxue xuebaoRequires access

PR Equation of State Based Friction Theory Viscosity Model for Liquid Refrigerants

Zhigang Liu

Open publisher page 0 citations

Abstract

The experimental liquid viscosity data of 14 pure refrigerants(R152a,R123,R141b,R11,R12,R125,R22,R32,R143a,R227ea,R236ea,R236fa,R245ca,and R245fa)are collected,and then a liquid viscosity model of the refrigerants is established using the friction theory in conjunction with the Peng-Robinson(PR)equation of state.The coefficients of the viscosity model are obtained using the least square method.The results show that all the average absolute deviations between the viscosity values calculated and the data in literature for the refrigerants in the dilute gas phase are less than 1%.In addition,all the average absolute deviations between the measurements and the viscosity values calculated with the present model for the refrigerants in the liquid phase are 0.31%-1.92%.

About this research paper

What this paper is about

The experimental liquid viscosity data of 14 pure refrigerants(R152a,R123,R141b,R11,R12,R125,R22,R32,R143a,R227ea,R236ea,R236fa,R245ca,and R245fa)are collected,and then a liquid viscosity model of the refrigerants is established using the friction theory in conjunction with the Peng-Robinson(PR)equation of state.The coefficients of the viscosity model are obtained using the least square method.The results show that all the average absolute deviations between the viscosity values calculated and the data in literature for the refrigerants in the dilute gas phase are less than 1%.In addition,all the average absolute deviations between the measurements and the viscosity values calculated with the present model for the refrigerants in the liquid phase are 0.31%-1.92%.

Why it matters

A significance statement is not available in the OpenAlex record.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

The experimental liquid viscosity data of 14 pure refrigerants(R152a,R123,R141b,R11,R12,R125,R22,R32,R143a,R227ea,R236ea,R236fa,R245ca,and R245fa)are collected,and then a liquid viscosity model of the refrigerants is established using the friction theory in conjunction with the Peng-Robinson(PR)equation of state.The coefficients of the viscosity model are obtained using the least square method.The results show that all the average absolute deviations between the viscosity values calculated and the data in literature for the refrigerants in the dilute gas phase are less than 1%.In addition,all the average absolute deviations between the measurements and the viscosity values calculated with the present model for the refrigerants in the liquid phase are 0.31%-1.92%.

Key concepts: Refrigerant, Thermodynamics, Viscosity, Equation of state, Absolute deviation, Phase (matter), Liquid phase, Relative viscosity

Related papers

Related paper 1Related paper 2Related paper 3
Back to paper searchBrowse research topicsOriginal source
PR Equation of State Based Friction Theory Viscosity Model for Liquid Refrigerants — Research Paper | ScholarLens