Experimental evaluation of the effect of leakage in scroll compressor

Year 2023, Volume: 9 Issue: 5, 1219 - 1227, 17.10.2023

Niyaj Dilavar Shıkalgar Shivalingappa Nagappa Sapalı

https://doi.org/10.18186/thermal.1372348

Abstract

This research gives an experimental investigation of the scroll compressor, with an emphasis on the effect of leakage on performance enhancement. The effect of gas leakage losses on com-pressor performance is studied both experimentally and conceptually. In the present study, we have modified the scroll compressor to bypass the refrigerant through an orifice called leakage and experimentally investigate the effect of valve opening area and angle to observe the effect of leak gas on compressor performance, compressor capacity loss, discharge line temperature rise, and discharge gas temperature. Experimental results indicated that the maximum per-centage rise in suction superheat is observed to be 7.13% at a maximum effective valve open-ing area of 0.33 m2, whereas the rise in discharge line temperature lies in the range of 0.8% to 2.75% over the entire range of effective leak area. In addition, based on experimentation the 8.9 % maximum compressor capacity loss is observed.

Keywords

Scroll Compressor, Leakage Mode, Axial Clearance, Mass Flow Rate

References

• REFERENCES
• [1] Peng B, Arnaud L, Vincent L, Xie XZ, Gong HF. Recent Advances on the oil-free Scroll Compressor. Recent Patents Mech Eng 2016;9:37–47. [CrossRef]
• [2] Peng B, Sun Y. Investigation of mathematical modeling and experiment for a variable thickness scroll compressor. J Mech Eng 2015;51:185–191. [Chinese] [CrossRef]
• [3] Tojo K, Ikegawa M, Shiibayashi M, Arai N, Arai A, Uchikawa N. A scroll compressor for air conditioners. International Compressor Engineering Conference 1984;496503.
• [4] Chen Y. Mathematical modeling of scroll compressor (Doctorial Thesis). Perdeu: Perdue University Graduate School, 2000.
• [5] Lemort V, Peng B, Jin W. Heat Transfer and Leakage Analysis for R410A Refrigeration Scroll Compressor. In: International Conference on Mechanical Design, 2007. p. 1453-1469.
• [6] Song P, Zhuge W, Zhang Y, Zhang L, HaoDuan L. Unsteady Leakage Flow-Through Axial Clearance of an ORC Scroll Expander. In: 4th International Seminar on ORC Power Systems. Energy Proced 2017;129:355362. [CrossRef]
• [7] Diniz MC, Pereira ELL, Deschamps CJ. Lumped Thermal Parameter Model for Scroll Compressors Including the Solution of the Temperature Distribution along with the Scroll Wraps. In: International Compressor Engineering Conference, Purdue University; 2012.
• [8] Imdad H, Zhmatkesh I, Alishahi MM. Two-fluid analysis of a gas mixing problem. Sci Iran 2013;20:162171. [CrossRef]
• [9] Nojima N, Uematsu T, Uekawa T, Hirooka K. Development of Scroll Compressors for R410A. In: International Compressor Engineering Conference, Purdue University. Paper 1636; 2004.
• [10] Shikalgar ND, Sapali SN. Numerical and thermal analysis of condensers applied to domestic refrigerator. J Int Rev Mech Eng 2017;11:8184. [CrossRef]
• [11] Maertens MJ, Richardson H. Scroll Compressor Operating Envelope Considerations. In: International Compressor Engineering Conference, Purdue University; 1992.
• [12] Tukiman MM, Ghazali MNM, Sadikin A, Nasir NF, Nordin N, Sapit A, Razali MA. CFD simulation of flow through an orifice plate. IOP Conf Ser Mater Sci Eng 2017;243:012036. [CrossRef]
• [13] Ishii N, Bird K, Sano K, Oono M, Iwamura S. Refrigerant Leakage Flow Evaluation for Scroll Compressors. In: International Compressor Engineering Conference, Purdue University; 1996.
• [14] Barton N, Reader-Harris M, Gibson J. Overview of CFD Modelling of Orifice-Plate Flowmeters. In: North Sea Flow Measurement Workshop, National Engineering Laboratory; 2004.
• [15] AHRI Standard 540. Standard for Performance Rating of Positive Displacement Refrigerant Compressors and Compressor Units. Air conditioning, Heating, and Refrigeration Institute, USA; 2015.
• [16] Jidge A. Mathematical Modelling of Leakages in Scroll Compressor for Air Conditioning Applications. M Tech Thesis, College of Engineering Pune,2020.
• [17] Tojo K, Ikegawa M, Shiibayashi M, Arai N, Arai A, Uchikawa N. A Scroll Compressor for Air Conditioners. In: International Compressor Engineering Conference; 1984. p. 496-503.
• [18] Pereira ELL, Deschamps CJ. A Heat Transfer Correlation for the Suction and Compression Chambers of Scroll Compressors. In: International Compressor Engineering Conference, Purdue University; 2016:2443.
• [19] Copeland General Product Guide, 2018 for Refrigeration, Air Conditioning & Heat Pumps. Emerson Commercial & Residential Solutions, GPC-2018-EN.
• [20] Yu T, Zhang X, Lima Neto IE, Zhang T, Shao Y, Ye M. Impact of orifice-to-pipe diameter ratio on leakage flow: An experimental study. Water J MDPI 2019;11:2189. [CrossRef]
• [21] Shikalgar ND, Sapali SN. Energy and exergy analysis of a domestic refrigerator: Approaching a sustainable refrigerator. J Therm Eng 2019;5:469481. [CrossRef]
• [22] Deshmukh P, Kasar S, Sapkal N. Experimental study of heat transfer in a helically coiled tube biomass fired rotary device. J Therm Eng 2022;6:772785. [CrossRef]
• [23] Shikalgar ND, Sapali SN. Performance evaluation of a domestic refrigerator with a thermal storage arrangement using propane as a refrigerant. Energy Proced 2017;109:3439. [CrossRef]