Solubility and Miscibility of Refrigerants R407c and R410a With Synthetic Compressor Oils

Геллер, В. З.; Лапардин, Н. И.

doi:10.15673/ret.v52i3.121

Cited by 4 publications

(1 citation statement)

References 3 publications

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“…All source terms were considered in this simulation. The evaluation of the twophase friction factor requires the viscosities of each phase, which were calculated as proposed by Geller et al [26]. The slip relation parameters were evaluated according to the correlation of Bhagwat and Ghajar [8].…”

Section: Upward Vertical Gas-liquid Flow Of R410amentioning

confidence: 99%

A High-Order Localized Artificial Diffusivity Scheme for Discontinuity Capturing on 1D Drift-Flux Models for Gas-Liquid Flows

Rosa¹

2024

AAMM

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A computational code is developed for the numerical solution of onedimensional transient gas-liquid flows using drift-flux models, in isothermal and also with phase change situations. For these two-phase models, classical upwind schemes such as Roe-and Godunov-type schemes are generally difficult to derive and expensive to use, since there are no treatable analytic expressions for the Jacobian matrix, eigenvalues and eigenvectors of the system of equations. On the other hand, the highorder compact finite difference scheme becomes an attractive alternative on these occasions, as it does not make use of any wave propagation information from the system of equations. The present paper extends the localized artificial diffusivity method for high-order compact finite difference schemes to solve two-phase flows with discontinuities. The numerical method has simple formulation, straightforward implementation, low computational cost and, most importantly, high-accuracy. The numerical methodology proposed is validated by solving several numerical examples given in the literature. The simulations are sixth-order accurate and it is shown that the proposed numerical method provides accurate approximations of shock waves and contact discontinuities. This is an essential property for simulations of realistic mass transport problems relevant to operations in the petroleum industry.

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Section: Upward Vertical Gas-liquid Flow Of R410amentioning

confidence: 99%

A High-Order Localized Artificial Diffusivity Scheme for Discontinuity Capturing on 1D Drift-Flux Models for Gas-Liquid Flows

Rosa¹

2024

AAMM

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Analysis of refrigerant/lubricant distribution and operating characteristics of a rotary booster for data center free cooling

Zhou,

Gu,

2024

Applied Thermal Engineering

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A numerical study on the effect of oil lubricant on the heat transfer and efficiency of a vapour compression refrigeration system

Shen

Liang

et al. 2022

International Communications in Heat and Mass Transfer

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Solubility and Miscibility of Refrigerants R407c and R410a With Synthetic Compressor Oils

Abstract: In this paper, solubility and low temperature miscibility of refrigerants R407C and R410A in four different commercial Polyolester (POE)

Cited by 4 publications

References 3 publications

A High-Order Localized Artificial Diffusivity Scheme for Discontinuity Capturing on 1D Drift-Flux Models for Gas-Liquid Flows

A High-Order Localized Artificial Diffusivity Scheme for Discontinuity Capturing on 1D Drift-Flux Models for Gas-Liquid Flows

Analysis of refrigerant/lubricant distribution and operating characteristics of a rotary booster for data center free cooling

A numerical study on the effect of oil lubricant on the heat transfer and efficiency of a vapour compression refrigeration system

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