Gas dynamics analysis of a rotary compressor based on CFD

Ba, Dechun; Deng, Wenjuan; Che, Shu-Gang; Li, Yang; Guo, Hongqian; Li, Na; Yue, Xiang-Ji

doi:10.1016/j.applthermaleng.2016.01.062

Cited by 23 publications

(7 citation statements)

References 10 publications

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“…The prototype used for modeling in this paper is the same as that in the literature. 26 The displacement of the compressor is 10.7 cc / rev and the speed is 3600 r/min. The refrigerant uses R410A.…”

Section: Numerical Modelmentioning

confidence: 99%

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Fluid–solid coupling numerical simulation for the performance prediction and valve dynamic analysis of a rotary compressor

Deng

Zhang

Zhu

et al. 2019

Proceedings of the Institution of Mechanical Engineers, Part C:

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To predict the performance of a rotary compressor and study the dynamic coupling characteristics of the valve, a three-dimensional dynamic model of the compressor is constructed in this paper. The model adopts the fluid–solid interaction method and the dynamic grid technique to achieve coupled reed valve motion. Meanwhile, to solve the problem of grid deformation caused by large deformation of the valve plate, a user-defined dynamic grid method is used to realize grid updating in the deformed area based on computational fluid dynamics method and the ideas of spring smoothing method. The model is validated with a cooling capacity error of 6.07% and an indicated power error of 2%. The stress, the displacement, the velocity and the pressure of the valve is analyzed. The flow characteristics and the dynamic characteristics of the valve plate obtained provide a reference for the design of the compressor.

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Section: Numerical Modelmentioning

confidence: 99%

“…The experiment conditions are shown in Table 3. So the equipment and method as well as the test results related in the literature 26 are used for FSI model validation. The performance test is shown in Figure 7.…”

Section: Performance Prediction and Validationmentioning

confidence: 99%

Fluid–solid coupling numerical simulation for the performance prediction and valve dynamic analysis of a rotary compressor

Deng

Zhang

Zhu

et al. 2019

Proceedings of the Institution of Mechanical Engineers, Part C:

Self Cite

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“…Other commercially available and open source CFD solvers with dynamic mesh options can be also applied to simulate volumetric machine operation, e.g. Star-CD [27][28][29], Ansys CFX [30], Ansys Fluent [23,31], etc. Meanwhile the specially targeted programs allows easy setup and faster evaluation, the universal CFD programs are more versatile i.e.…”

Section: Accessing Performance By Cfdmentioning

confidence: 99%

“…In case of conventional design, it is enough to deform the mesh while the shape of the computational domain changes without changing the number of mesh elements as it is published in most of the studies in the related literature, e.g. [23,25,[27][28][29]. However, in the recent case the interaction of the swinging vane mechanism and the piston result in complex change of the geometry which cannot be followed by straight forward deforming mesh algorithms.…”

Section: Dynamic Meshmentioning

confidence: 99%

Transient 3D CFD Simulation of a Stationary Vane, Oil Free, Rotary Compressor

Farkas

Suda

2019

Period. Polytech. Mech. Eng.

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The evaluation of a newly designed oil-free rotary compressor is presented based on transient 3D Computational Fluid Dynamics (CFD) simulations. The simulations are performed at low compression ratios and low pressure ratios and low rotational speeds. To place the results into context, the data presented in related literature was processed and summarized. The methods related to the CFD model of the newly designed compressor were developed, summarized and evaluated. The accessed CFD data are in good agreement with the results of the former rolling piston compressor related investigations. The oil free operation prevents the contamination of the working fluid from lubricant. Since the compressor is planned to work in open cycle within the sensitive environment of thermal heat sources contamination free operation has to be accomplished. However, oil-free operation also results in significantly lower performance based on the modelling results.

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“…The agreement between calculated and experimental data was within −6.09% to +2.90% Nomenclature a coefficient to be used in Eq. ( 34) [measurement units: see Ba et al (2016) analysed the gas dynamics of a rotary compressor using a three-dimensional computational fluid dynamics (CFD) model coupled with a dynamic grid technique. The simulated results were compared with experimental results from a rotary compressor working with R410A.…”

Section: Introductionmentioning

confidence: 99%