A heat transfer correlation for the suction and compression chambers of scroll compressors

Pereira, Evandro L. L.; Deschamps, César J.

doi:10.1016/j.ijrefrig.2017.05.033

Cited by 19 publications

(5 citation statements)

References 10 publications

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“…Pereira et al [28,53] developed numerical models for analyzing radial and tangentia leakage in scroll compressors. Rak et al [29] proposed a two-dimensional model that incor porates non-constant flow, including leakage between each chamber.…”

Section: Research On Leakage Sealingmentioning

confidence: 99%

Key Technologies and Application of Electric Scroll Compressors: A Review

Zhang,

Peng,

Zhang

et al. 2024

Energies

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The electric scroll compressor is driven by a built-in electric motor that rotates the scroll disk. It is known for its simple structure, adjustability, and high efficiency, making it highly promising for various applications. This paper reviews the current application and research status of electric scroll compressors. It covers topics such as the optimal design of scroll compressor profiles, scroll disk leakage sealing, and computer simulation optimization design methods. Additionally, the progress and development trends of vapor-injection scroll compressors (SCVIs) are discussed. This paper also presents the latest research progress on the application of the new refrigerant CO2 in electric scroll compressors, along with its latest applications that align with sustainable development requirements. Finally, this paper concludes with recommendations for the application of electric scroll compressors and suggests future directions for research.

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Section: Research On Leakage Sealingmentioning

confidence: 99%

Key Technologies and Application of Electric Scroll Compressors: A Review

Zhang,

Peng,

Zhang

et al. 2024

Energies

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“…dV dϑ can be expanded in the mean of backward differences. Heat transfer can also be calculated in this step using one of the models (Bell, 2011;Pereira and Deschamps, 2017;Rak and Pietrowicz, 2020;Wang J. et al, 2022), but it is neglected in our study because the only delivery of the compressor is the focus. Enthalpies are calculated using state equations or tables.…”

Section: Compressor Delivery Modeling Based On Numerical Calculations...mentioning

confidence: 99%

“…Various approaches have been used to improve the efficiency of scroll compressors, such as researching the design of rotor profiles to reduce volumetric losses (Lee and Wu, 1995;Ishii et al, 1996) and studying the effects of cooling on compression work (Xudong et al, 2008;Shuaihui et al, 2010). Individual processes that occur in the compressor have been modeled, such as compression (Chen et al, 2002a), heat transfer (Pereira and Deschamps, 2017;Rak and Pietrowicz, 2020;Wang J. et al, 2022), and leakage (Chen et al, 2002b). Full simulation models have also been created (Chen et al, 2002a;Chen et al, 2002b;Bell, 2011;Ziviani et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Numerical calculation of scroll compressor geometry and assessment of its delivery

Prezelj,

Cerkovnik

2023

Front. Mech. Eng.

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This paper proposes innovative numerical methods for calculating the chamber volumes and tangential leakage gaps in a scroll compressor, a critical aspect of enhancing its performance and efficiency. It proposes two methods, namely, moving away from traditional analytical approaches and presenting a 0D model for mass flow delivery at varying rotational frequencies and discharge pressures. The first method utilizes the numerical identification of conjugate points with a minimum distance within the fixed and orbiting involute pair to calculate chamber volumes. This approach compensates for integration errors by considering the subareas defined by the normal distance of each involute to the other. The second method simplifies the process by assuming that the line defining the orbital angle intersects the involutes at the conjugate points, with volumes calculated using area discretization on triangles. Both methods underwent validation against three analytical calculations, showing an agreement within an overall uncertainty error of 3% for the maximum suction volume. The 0D model’s results were compared with Ma et al.'s hybrid method and actual measurements. Upon improving Ma’s model by accounting for intake air heating and negative pressure in the intake volume, a significant agreement between modeling and measurements was observed. This study concludes that the proposed numerical methods can enhance the accuracy of scroll compressor geometry calculation and mass flow delivery, considering the tangential gap.

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“…Compressors are usually subjected to simplified tests with a shorter duration [7]. The examination of flow conditions, heat transfer, and the effect thereof on a compressor's efficiency is carried out while applying, to a large extent, numerical methods that are based on the Finite Element Method or the Finite Volume Method [8][9][10]. Attention is also paid to oil retention in the compressor pipes, depending on the thickness of the oil film on the compressor surface [11].…”

Section: Introductionmentioning

confidence: 99%

Diagnostics of Hydrogen-Containing Mixture Compression by a Two-Stage Piston Compressor with Cooling Demand Prediction

et al. 2018

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Abstract:The present article describes the diagnostics of a compressor that is compressing a mixture of H 2 and N 2 on the basis of the results that were obtained by operational measurements of the flow rates and temperatures at selected compressor sites, as well as of the acoustic pressure levels during the full loading thereof. The obtained data were subsequently used to determine the limit conditions of the compressor operations in terms of the cooling capacity. A thermodynamic analysis of the compression of the H 2 /N 2 gas mixture was carried out with subsequent heat and energy flow calculation and the determination of the minimum cooling water flow rate that is required to ensure the continuous compressor operations.

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A heat transfer correlation for the suction and compression chambers of scroll compressors

Cited by 19 publications

References 10 publications

Key Technologies and Application of Electric Scroll Compressors: A Review

Key Technologies and Application of Electric Scroll Compressors: A Review

Numerical calculation of scroll compressor geometry and assessment of its delivery

Diagnostics of Hydrogen-Containing Mixture Compression by a Two-Stage Piston Compressor with Cooling Demand Prediction

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