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ISSN (Print): 2212-7976
ISSN (Online): 1874-477X

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Research Article

Numerical Simulation and Experimental Research of Oil-free Scroll Air Compressor Based on CFD

Author(s): Sun Jian*, Peng Bin and Zhu Bingguo

Volume 15, Issue 3, 2022

Published on: 30 August, 2021

Page: [328 - 339] Pages: 12

DOI: 10.2174/2212797614666210830154422

Price: $65

Abstract

Background: Compared with other types of compressors, although the scroll compressor has a simple structure and low noise, due to the limitation of the structure, it has defects such as excessively high discharge temperature, and has extremely high requirements on the machining accuracy of parts. The oil-free scroll compressor is a new type of scroll machine, which does not contain oil during the working process; it can be applied to cases with low displacement requirements and a high-pressure ratio.

Objective: Taking a scroll compressor with a rated displacement of 0.6 m3/min as the research object, the analysis and research of the working performance parameters of the scroll compressor in actual work provide a certain theoretical basis for the improvement and optimization of the test prototype.

Methods: The thermodynamic model of the scroll compressor in the actual working process is established by the variable-mass system thermodynamics and the control volume method. Based on the CFD method, a three-dimensional unsteady-state numerical simulation of the flow characteristics of the working fluid in the scroll compressor's working chamber is carried out in order to verify the thermodynamic model. Considering the accuracy of numerical simulation, a test platform with air as the working fluid is set up.

Results: Through the thermodynamic model and numerical simulation, the changes of temperature, pressure and velocity in the working chamber of the scroll compressor with the orbiting angle of the main shaft as well as the gas force and torque acting on the orbiting scroll tooth are obtained. Through experiments, the law of volume flow and shaft power of the scroll compressor with the speed of change, and the law of the change of discharge temperature with pressure at different speeds are obtained.

Conclusion: At the same time, the thermodynamic model established by considering heat transfer and leakage is more in line with the actual working process of the compressor; the mass exchange between adjacent working chambers of the scroll compressor has a greater impact on the temperature and pressure in the working chamber. Due to internal leakage and irreversible loss, such as heat transmission, there is a deviation between the theoretical volume flow and the actual volume flow.

Keywords: Oil-free scroll compressor, single scroll, thermodynamic model, CFD, numerical simulation, experimental verification.

« Previous Next »
[1]
Peng B, Legros A, Lemort V, Xie XZ, Gong HF. Recent advances on the oil-free scroll compressor. Recent Pat Mech Eng 2016; 9(1): 37-47.
[http://dx.doi.org/10.2174/2212797609666151109204948]
[2]
Liu JH, Li QG, Wang FZ, Zhou L. A new model of screw compressor for refrigeration system simulation. Int J Refrig 2012; 35(4): 861-70.
[http://dx.doi.org/10.1016/j.ijrefrig.2012.01.016]
[3]
Wang BL, Liu XR, Shi WX. Comparative research on air conditioner with gas-injected rotary compressor through injection port on blade. Appl Therm Eng 2016; 106: 67-75.
[http://dx.doi.org/10.1016/j.applthermaleng.2016.05.155]
[4]
Jariwala V. Design of very-high-flow coefficient centrifugal compressor stages Hydrocarbon Process, 2020; PP: 57-61
[5]
Tomoyuki K, Ryosuke O. Oil supply compressor. CN105612353 (2016).
[6]
Masayuki K, Hideharu T. Oil-free compressor. CN107250547 (2017).
[7]
Van der Hagen AV. Improved water jet screw compressor components. CN101454575 (2009).
[8]
Shoji Y, Toru N. Threaded rod fluid machine. CN102562596 (2012).
[9]
Sadayuki Y, Yusuke I, Jun S. Vortex type compressor. CN108779774 (2020).
[10]
Kim ES, Kim BG, Kim DH, Kim YS. Scroll compressor. WO2019045298 (2019).
[11]
China Energy Long-term Development Strategy Research Project Team. Research on China's Energy Medium and Long-term (2030 2050) Development Strategy: Renewable Energy Volume[M]. Science Press. 2011.
[12]
Pan L, Qu ZC, Jin CM. Summary of research on scroll compressor profile. J Mech Eng 2000; 9: 1-4+10
[13]
Cheng ZM, Ouyang XP, Lei R. Overview and prospect of the research on profile of scroll compressor. Fluid Machinery 2015; 43(1): 51-6.
[14]
Peng B, Zhao SX, Li YH, Zhu YJ, Zhang PC. Review and prospect of the scroll compressor profile. Compressor Technology 2017; 3: 56-64.
[15]
Qiang JG, Liu ZQ. Scroll profiles in scroll compressors: General criteria and error sensitivity. Int J Refrig 2013; 36(7): 1796-808.
[http://dx.doi.org/10.1016/j.ijrefrig.2013.09.030]
[16]
Wang LC, Dong GH, Zhang GJ, Nie X, Song LJ. Finite element modeling and analysis of general profiles scroll compressor plate based on MATLAB and U.G. Fluid Machinery 2016; 44(2): 29-33.
[17]
Peng B, Jiang L. Parameter analysis and optimization of modification of tooth head of scroll profile. J Huazhong Univ Sci Technol (Nat Sci Ed) 2020; 48(9): 107-12.
[18]
Peng B, Zhu BG. Investigation of the geometrical model for scroll compressor based on circle involute. Fluid Machinery 2016; 44(5): 16-21.
[19]
Liu T, Hou CS, Li YP. A new method of constructing scroll compressor profile using Frenet moving frame. J Harbin Inst Technol 2020; 52(1): 194-200.
[20]
Hou CS, Liu T. Investigation of scroll profiles for variable cross-section scroll compressor based on Frenet frame. J Huazhong Univ Sci Technol (Nat Sci Ed) 2019; 47(2): 76-80.
[21]
Jang K, Jeong S. Experimental investigation on convective heat transfer mechanism in a scroll compressor. Int J Refrig 2005; 29(5): 744-53.
[http://dx.doi.org/10.1016/j.ijrefrig.2005.12.002]
[22]
Tian Z, Gu B, Yang L, Lu Y. Hybrid ANN–PLS approach to scroll compressor thermodynamic performance prediction. Appl Therm Eng 2015; 77: 113-20.
[http://dx.doi.org/10.1016/j.applthermaleng.2014.12.023]
[23]
Giovanni T, Silvia M, Giulio M, Massimo C, Massimo C. An experimental investigation of internal heat transfer in an automotive turbocharger compressor. Appl Energy 2017; 193: 531-9.
[http://dx.doi.org/10.1016/j.apenergy.2017.02.053]
[24]
Fukuta M, Sotani T, Motozawa M. Leakage and friction characteristics at sliding surface of tip seal in scroll compressors. Int J Refrig 2021; 125: 104-12.
[http://dx.doi.org/10.1016/j.ijrefrig.2021.01.016]
[25]
Blunier B, Cirrincione G, Hervé Y, Miraoui A. A new analytical and dynamical model of a scroll compressor with experimental validation. Int J Refrig 2008; 32(5): 874-91.
[http://dx.doi.org/10.1016/j.ijrefrig.2008.11.009]
[26]
Peng B, Lemort V, Legros A, Zhang HS, Gong HF. Variable thickness scroll compressor performance analysis-Part I: Geometric and thermodynamic modeling. P I Mech Eng E-J Pro 2017; 231(4). 633-40
[27]
Peng B, Lemort V, Legros A, Zhang HS, Gong HF. Variable thickness scroll compressor performance analysis-Part II: Dynamic modeling and model validation. P I Mech Eng E-J Pro 2017; 231(4). 641-9
[28]
Kim D, Chung HJ, Jeon Y, Jang DS, Kim Y. Optimization of the injection-port geometries of a vapor injection scroll compressor based on SCOP under various climatic conditions. Energy 2017; 135: 442-54.
[http://dx.doi.org/10.1016/j.energy.2017.06.153]
[29]
Li C, Zhang XD, Wang HH, Liu JZ. Study on the change law of index of multi-variable compression process of scroll compressor. Fluid Machinery 2020; 48(8): 11-7.
[30]
Peng B, Zhao SX, Li YH. Performances of new oil-free scroll compressors. China Mech Eng 2018; 29(24): 2917-24.
[31]
Sung JP, Boo JH, Jung EG. Transient thermodynamic modeling of a scroll compressor using R22 refrigerant. Energies 2020; 13(15): 3911.
[http://dx.doi.org/10.3390/en13153911]
[32]
Cardone M, Gargiulo B. Numerical simulation and experimental validation of an oil free scroll compressor. Energies 2020; 13(22): 5863.
[http://dx.doi.org/10.3390/en13225863]
[33]
Rane S, Kovacevic A, Stosic N, Kethidi M. Grid deformation strategies for CFD analysis of screw compressors. Int J Refrig 2013; 36(7): 1883-93.
[http://dx.doi.org/10.1016/j.ijrefrig.2013.04.008]
[34]
Ba DC, Deng WJ, Che SG, et al. Gas dynamics analysis of a rotary compressor based on CFD. Appl Therm Eng 2016; 99: 1263-9.
[http://dx.doi.org/10.1016/j.applthermaleng.2016.01.062]
[35]
Emhardt S, Song PP, Tian G, Chew J, Wei MS. CFD analysis of variable wall thickness scroll expander integrated into small scale ORC systems. Energy Procedia 2019; 158: 2272-7.
[http://dx.doi.org/10.1016/j.egypro.2019.01.241]
[36]
Cui MM. Comparative study of the impact of the dummy port in a scroll compressor. Int J Refrig 2006; 30(5): 912-25.
[http://dx.doi.org/10.1016/j.ijrefrig.2006.10.008]
[37]
Peng B, Dong H, Li YH, Zhao SX. Research on performance of oil-free scroll compressor based on CFD dynamic mesh. Machine Tool Hydraulics 2020; 48(4): 126-30.
[38]
Wang J, Song YX, Jiang Y, Li Q, Zhang DH. Numerical simulations of internal flow fields for scroll compressors based on structured dynamic meshes. J Eng Thermophys-Rus 2016; 37(2): 309-13.
[39]
Wang J, Song YX, Zha HB. L Q. 3D numerical simulation and study of discharge process for scroll compressors. J Eng Thermophys-Rus 2016; 37(4): 766-9.
[40]
Wang J, Cui SJ, Feng ZH, Li HX, Sha RD. Construction and simulation of an asymmetric twin-wrap profile for scroll compressors. J Eng Thermophys-Rus 2021; 42(2): 386-92.
[41]
Zha HB, Zhang XH, Wang J, Jiang Y, Qiu XQ. Numerical simulation of three-dimensional unsteady flow in the scroll compressor. Fluid Machinery 2016; 44(2): 17-23.
[42]
Zha HB, Jiang Y, Wang J, Qiu XQ. One-way fluid-structure interaction method of scroll compressor and analysis on the deformation of the wrap. Fluid Machinery 2015; 43(12): 22-7.
[43]
Chen YK, Li HS, Wu TST, Yang NZ. Study on the unsteady flow of gas in the compressed cavity of a scroll compressor. Fluid Machinery 2016; 44(10): 46-50.
[44]
Li C, Yang ZJ, Ding K, Zhang GZ. Analysis of radial leakage impact on flow field for scroll compressor compression chamber. Fluid Machinery 2016; 44(1): 14-8.
[45]
Abdulhussain MA. CFD pretending of vapor and liquid refrigerant mixing in variable speed scroll compressor. Eng Sci Technol Int J 2019; 22(1): 168-76.
[http://dx.doi.org/10.1016/j.jestch.2018.07.017]
[46]
Wu Z, Feng ZG, Su YF. Simulation and analysis of internal flow field in scroll compressor with circular involute profile. Mech Sci Technol Aerospace Eng 2019; 38(12): 1840-6.
[47]
Cavazzini G, Giacomel F, Ardizzon G, Casari N, Fadiga E, Pinelli M, et al. CFD-based optimization of scroll compressor design and uncertainty quantification of the performance under geometrical variations. Energy 2020; 209: 118382.
[http://dx.doi.org/10.1016/j.energy.2020.118382]
[48]
Zhao RC, Li WH, Zhuge WL. Unsteady characteristic and flow mechanism of a scroll compressor with novel discharge port for electric vehicle air conditioning. Int J Refrig 2020; 10(118): 403-14.
[http://dx.doi.org/10.1016/j.ijrefrig.2020.06.022]
[49]
Pereira ELL, Deschamps CJ. A heat transfer correlation for the suction and compression chambers of scroll compressors. Int J Refrig 2017; 82: 325-34.
[http://dx.doi.org/10.1016/j.ijrefrig.2017.05.033]
[50]
Pereira ELL, Deschamps CJ. Deschamps. Numerical analysis and correlations for radial and tangential leakage of gas in scroll compressors. Int J Refrig 2020; 2(110): 239-47.
[http://dx.doi.org/10.1016/j.ijrefrig.2019.11.002]
[51]
Pereira ELL, Braga VM, Deschamps CJ. Data from the numerical analysis of radial and tangential leakage of gas in scroll compressors. Data in Brief 2020; 4(29): 105197.
[http://dx.doi.org/10.1016/j.dib.2020.105197]
[52]
Rak J, Pietrowicz S. Internal flow field and heat transfer investigation inside the working chamber of a scroll compressor. Energy 2020; 202: 117700.
[http://dx.doi.org/10.1016/j.energy.2020.117700]
[53]
Zheng SY, Wei MS, Hu CX, Song PP, Tian R. Flow characteristics of tangential leakage in a scroll compressor for automobile heat pump with CO2. Sci China Technol Sci 2021; 64(5): 971-83.
[http://dx.doi.org/10.1007/s11431-020-1765-3]
[54]
Song PP, Wei MS, Liu Z, Zhao B. Effects of suction port arrangements on a scroll expander for a small scale ORC system based on CFD approach. Appl Energ 2015; 150: 274-85.
[http://dx.doi.org/10.1016/j.apenergy.2015.04.046]
[55]
Song PP, Zhuge WL, Zhang YJ, Zhang L, Duan H. Unsteady leakage flow through axial clearance of an ORC scroll expander. Energy Procedia 2017; 129: 355-62.
[http://dx.doi.org/10.1016/j.egypro.2017.09.221]
[56]
Song PP, Wei MS, Zhang YJ, Sun LW, Emhardt S, Zhuge WL. The impact of a bilateral symmetric discharge structure on the performance of a scroll expander for ORC power generation system. Energy 2018; 158: 458-70.
[http://dx.doi.org/10.1016/j.energy.2018.06.053]
[57]
Chen Y, Halm NP, Braun JE, Groll EA. Mathematical modeling of scroll compressors-part I: compression process modeling. Int J Refrig 2002; 25(6): 731-50.
[http://dx.doi.org/10.1016/S0140-7007(01)00071-8]
[58]
Chen Y, Halm NP, Braun JE, Groll EA. Mathematical modeling of scroll compressors-part II: Overall scroll compressor modeling. Int J Refrig 2002; 25(6): 751-64.
[http://dx.doi.org/10.1016/S0140-7007(01)00072-X]
[59]
Peng B, Li YH, Zhao SX. Performance simulation for scroll expanders China Mechanical Engineering 2018; 29(8): 965-70+978.
[60]
Wang FJ. Computational fluid dynamics analysis: Principles and applications of CFD software. Tsinghua University Press 2004.
[61]
Wang J, Song YX, Li Q, Zhang DH. Novel structured dynamic mesh generation for CFD analysis of scroll compressors. P I Mech Eng A-J Pow 2015; 229(8): 1007-18.
[62]
Park I, Choi S, Lee B, Yoo B. Scroll compressor with an arcuate and a logarithmic spiral sections. US9605675 (2017).
[63]
Pereira ELL, Deschamps CJ. A numerical study of convective heat transfer in the compression chambers of scroll compressors. Proceedings of International Compressor Engineering Conference. Purdue, USA October,. 2012.
[64]
Wang J, Zha HB, Zhang XH, Zhang DH. Working process study of a novel scroll type multiphase pump for the transportation of gas-liquid mixtures. IOP Conf Ser Earth Environ Sci 2012; 15(7): 072008.
[http://dx.doi.org/10.1088/1755-1315/15/7/072008]
[65]
Song PP, Wei MS, Shi L, Ma CC. Numerical simulation of three-dimensional unsteady flow in a scroll expander applied in waste heat recovery. IOP Conf Series Mater Sci Eng 2013; 52(4): 042017.
[http://dx.doi.org/10.1088/1757-899X/52/4/042017]
[66]
Xiao G, Liu G. Computer simulation for transient flow in oil-free scroll compressor. Int J Control 2014; 7(9): 317-28.
[67]
Liu S, Kang X, Shan C, Hu Y. Numerical simulation of three-dimension unsteady flow in the compression chambers of a scroll compressor. Proceedings of International Compressor Engineering Conference. Purdue, USA October,. 2014.
[68]
Branch S. Methods of fluid properties for compressible refrigerant CFD analysis. Proceedings of International Compressor Engineering Conference. Purdue, USA October,. 2014.

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