Effect of pressure ratio and oil viscosity on rotary compressor efficiency

Na, Sangkyung; Shin, Myeongsu; Choi, Gyung‐Min; Min, Byungchae

doi:10.1007/s12206-018-0945-7

Cited by 10 publications

(2 citation statements)

References 7 publications

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“…The earliest dual cylinder rolling piston design was presented by Sakaino et al [196] in 1986. Since then, various engineering aspects of the dual cylinder rolling piston have been studied, which included dynamics [197], optimization [198], discharge flow [199], and lubrication [200]. With the phase out of harmful refrigerants, studies on dual cylinder performance [201] and lubrication [202,203] with new refrigerants were also carried out.…”

Section: Dual Cylinder and Two-stage Rolling Piston Compressorsmentioning

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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Section: Dual Cylinder and Two-stage Rolling Piston Compressorsmentioning

confidence: 99%

A Review on Sliding Vane and Rolling Piston Compressors

Ooi

2021

Machines

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“…The International Institute of Refrigeration (IIR) reported that about 1.5 billion domestic refrigerators and freezers are in service worldwide, comprising approximately 4% of global electricity consumption [3]. As these appliances account for such a significant portion of the world's electricity consumption, improving efficiency can improve a significant portion of the total energy consumption [4][5][6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Evaporator Optimization of Refrigerator Systems Using Quality Analysis

Song²,

Lee

et al. 2021

Energies

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In this study, evaporator optimization, via both experimental and simulation methods was conducted. To evaluate the evaporator performance, under the optimal system, the compressor operating time and the effects of oil on the refrigerator system were studied. If the temperature of the refrigerator chamber reaches the setting value, the compressor stops working and it leads to the temperature of the refrigerator chamber slowly increasing, due to the heat transfer to the ambient. When the refrigerator temperature is out of the setting range, the compressor works again, and the refrigerator repeats this process until the end of its life. These on/off period can be controlled through the compressor piston movement. To determine the optimal compressor operating conditions, experiments of monthly power consumption were conducted under various compressor working times and the lowest power consumption conditions was determined when the compressor worked continuously. Lubricating oil, the refrigerator system, using oil, also influenced the system performance. To evaluate the effect of oil, oil eliminated and oil systems were compared based on cooling capacity and power consumption. The cooling capacity of the oil eliminated system was 2.6% higher and the power consumption was 3.6% lower than that of the oil system. After determining the optimal operating conditions of the refrigerator system, visualization experiments and simulations were conducted to decide the optimal evaporator and the conventional evaporator size can be reduced by approximately 2.9%.

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Study on efficient heating method by solar coupled air source heat pump system with phase change heat storage in severe cold region

Gao,

Li,

et al. 2024

Applied Energy

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Effect of pressure ratio and oil viscosity on rotary compressor efficiency

Cited by 10 publications

References 7 publications

A Review on Sliding Vane and Rolling Piston Compressors

A Review on Sliding Vane and Rolling Piston Compressors

Evaporator Optimization of Refrigerator Systems Using Quality Analysis

Study on efficient heating method by solar coupled air source heat pump system with phase change heat storage in severe cold region

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