Analysing the influence of the scroll compressor working element kinematics on its volumetric characteristics

This paper is devoted to the improvement of scroll compressors and the possibility of their use in mining, pneumatic and climate control applications. The scroll compressor has proven itself in low and medium pressure applications, with its design allowing for a higher degree of pressure increase and a wider range of applications. However, as the pressure increases, the leakage in the working part of the compressor increases, which is the dominant type of losses in this type of machine. The aim of the work is to clarify the quantitative component of leakages at change of the compressor capacity related to the kinematics of the working parts. The solution is based on the creation of an adapted mathematical model of medium flow through gaps in the flow part of the compressor, which takes into account the mobility of the slot wall. The method of calculation of volumetric losses, built on its basis, allows to obtain data with an error of 4.8% from the data stated by the manufacturer, while the classical method gives an error of about 7%. The degree of influence of the slit wall mobility between the scrolls on the compressor volume losses is estimated. The prospect of using the compressor in the field of pneumatic and climatic engineering and other mining operations is shown.

Pronin V. A., Kovanov A. V., Tsvetkov V. A., Kononenko R. V., Popov M. A. Analysing the influence of the scroll compressor working element kinematics on its volumetric characteristics. MIAB. Mining Inf. Anal. Bull. 2023;(11-1):130-143. [In Russ]. DOI: 10.25018/023 6_1493_2023_111_0_130.

V.A. Pronin¹, Dr. Sci. (Eng.), Professor, e-mail: vapronin@itmo.ru, ORCID ID: 0000-0002-9278-5903,
A.V. Kovanov¹, Graduate Student, e-mail: avkovanov@itmo.ru, ORCID ID: 0000-0003-2821-795X,
V.A. Tsvetkov¹, Graduate Student, e-mail: vatsvetkov@itmo.ru, ORCID ID: 0000-0003-4357-0022,
R.V. Kononenko², Cand. Sci. (Eng.), Assistant Professor, e-mail: iistu_politeh@mail.ru,
M.A. Popov², Research Engineer, e-mail: popovma.kvantum@gmail.com,
¹ ITMO University, 191002, Saint-Petersburg, Russia,
² Irkutsk National Research Technical University, 664074, Irkutsk, Russia,

A.V. Kovanov, e-mail: avkovanov@itmo.ru.

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