Experimental analysis on R290 solubility and R290/oil mixture viscosity in oil sump of the rotary compressor

Wu, Jiang; Chen, Zhenhua; Lin, Jie; Li, Jinbo

doi:10.1016/j.ijrefrig.2018.07.021

Cited by 49 publications

(3 citation statements)

References 11 publications

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“…The dynamic viscosity data for R-290/ISO 22 mixture were correlated using the generalized friction theory (f-theory) of Quiñones-Cisneros and Deiters, resulting in an absolute average deviation (AAD) of approximately 25%. Recently, Wu et al reported the dynamic viscosities for R-290/mineral oil ISO VG 100 mixture in the oil sump of rotary compressors using a compressor performance test platform . Pensado et al investigated the viscosity and density of subsaturated mixtures of CO 2 with different pure component pentaerythritol esters (C 5 to C 9 ); the currently investigated lubricant mixture, ISO VG 32, is composed of some of these pure component pentaerythritol esters.…”

Section: Introductionmentioning

confidence: 99%

“…Recently, Wu et al reported the dynamic viscosities for R-290/ mineral oil ISO VG 100 mixture in the oil sump of rotary compressors using a compressor performance test platform. 13 Pensado et al investigated the viscosity and density of subsaturated mixtures of CO 2 with different pure component pentaerythritol esters (C 5 to C 9 ); 14 the currently investigated lubricant mixture, ISO VG 32, is composed of some of these pure component pentaerythritol esters.…”

Section: Introductionmentioning

confidence: 99%

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Viscosity and Density of a Polyol Ester Lubricating Oil Saturated with Compressed Hydrofluoroolefin Refrigerants

et al. 2020

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Hydrofluoroolefins (HFOs) are currently being developed to replace hydrofluorocarbons (HFCs) with high global warming potential (GWP) in air-conditioning and refrigeration systems. The development of low-GWP HFOs requires detailed knowledge of the key thermophysical properties of these refrigerants with commonly used lubricating oils at varying operational conditions. The liquid-phase dynamic viscosity and density data for a synthetic polyol ester lubricating oil (ISO VG 32) saturated with compressed 2,3,3,3-tetrafluoropropene (R-1234yf) and trans-1,3,3,3-tetrafluoropropene (R-1234ze(E)) were measured over temperatures ranging from 248.15 to 348.15 K and pressures up to 0.6 MPa. The liquid compositions for the viscosity and density data were calculated using previously measured vapor–liquid equilibrium data and models. The liquid phase viscosity decreased significantly with increased composition of the refrigerant. The experimental viscosity and density obtained for each refrigerant and lubricating oil system were successfully correlated using Redlich–Kister expansions for excess volume and “excess viscosity”. From the data and modeling, the kinematic viscosities were calculated and Daniel plots were generated. In addition, the previously measured diffusivities for each HFO/ISO VG 32 lubricating oil system were well correlated with the reported experimental viscosity data according to the Stokes–Einstein theory.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Viscosity and Density of a Polyol Ester Lubricating Oil Saturated with Compressed Hydrofluoroolefin Refrigerants

et al. 2020

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“…Evaluation of lubrication performance using R290 with mineral oil was carried out at high ambient temperatures [184] along with reliability testing that indicate both mineral and synthetic oil are compatible with R290 [185] although higher friction coefficients were observed with mineral oil at the vane and roller interface [155]. Empirical correlations for the solubility of R290 in mineral oil and the resultant oil viscosity were also formulated [186].…”

Section: Refrigerantsmentioning

confidence: 99%

A Review on Sliding Vane and Rolling Piston Compressors

Ooi

2021

Machines

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Rotary compressors have been employed in heating and cooling for more than a century and are ubiquitous in daily life but there has not been any comprehensive record of their development and technological advances. This review paper attempts to provide a comprehensive account of the advances in R&D and design evolution of these rotary compressors since their inception, namely the sliding vane compressor, rolling piston compressor, and their design variants in open literature. This is to showcase the current state-of-the-art for these compressors so that researchers can use it as a basis for future work. Based on authors’ insight, inter-disciplinary research combined with advancements in ‘disruptive’ technology such as artificial intelligence and advancements in additive manufacturing might be a promising research direction to bring about improvements in rotary compressor performance to meet mankind’s growing needs for cooling and heating applications.

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Experimental and theoretical examination of the energy performance and CO2 emissions of room air conditioners utilizing natural refrigerant R290 as a substitute for R22

Shaik¹,

Gorantla

Shaik

et al. 2023

J Therm Anal Calorim

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Experimental analysis on R290 solubility and R290/oil mixture viscosity in oil sump of the rotary compressor

Cited by 49 publications

References 11 publications

Viscosity and Density of a Polyol Ester Lubricating Oil Saturated with Compressed Hydrofluoroolefin Refrigerants

Viscosity and Density of a Polyol Ester Lubricating Oil Saturated with Compressed Hydrofluoroolefin Refrigerants

A Review on Sliding Vane and Rolling Piston Compressors

Experimental and theoretical examination of the energy performance and CO2 emissions of room air conditioners utilizing natural refrigerant R290 as a substitute for R22

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