Analysis of Compressed Air Energy Conversion Processes in a Rotary Piston Pneumatic Engine

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dc.contributor.authorMytrofanov, O.
dc.contributor.authorProskurin, A.
dc.date.accessioned2023-10-02T11:39:37Z
dc.date.available2023-10-02T11:39:37Z
dc.date.issued2021
dc.descriptionMytrofanov, O. Analysis of Compressed Air Energy Conversion Processes in a Rotary Piston Pneumatic Engine / O. Mytrofanov, A. Proskurin // Problemele Energeticii Regionale. – 2021. – Vol. 1 (49). – P. 39–48.
dc.description.abstract1This article describes a rotary piston pneumatic engine with a gas exchange system design that minimizes the value of the relative dead volume, as well as ensures the minimum dimensions and weight of the engine. The main purpose of the study is to evaluate the conversion efficiency of com-pressed air energy in the working cylinder of the rotary piston pneumatic engines using the exergy method of thermodynamic analysis. To achieve the set goal of the study, physical modeling of various operation modes has been performed. The most significant result is that, based on the physical and mathematical modeling, a thermodynamic assessment of the efficiency of the compressed air energy conversion has been performed. The significance of the results obtained lies in the fact that the effect of the main operational parameters of the pneumatic engine on the efficiency of energy conversion is established. The basic equations of the exergy method of the thermodynamic analysis are presented. The results of physical and mathematical modeling of various operation modes are presented. The main reasons for the decrease in the energy conversion efficiency at low and rated loads are empha-sized. The amount of exergy supplied with the air flow was established, which, depending on the op-eration mode, amounted to 2.2…11.4 kW. According to the presented results, the most optimal speed range, based on the achievement of the maximum values of the specific efficient work and exergy ef-ficiency, is 55…70 % of the nominal value. It was found that an increase in the operation pressure de-creases slightly the exergy efficiency. A twofold increase in the operation pressure of the pneumatic engine increases the efficient power by 46 % at a simultaneous decrease in the exergy efficiency by 8.2 %.
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dc.description.provenanceMade available in DSpace on 2023-10-02T11:39:37Z (GMT). No. of bitstreams: 1 Mytrofanov 2021.pdf: 787026 bytes, checksum: e36832a5407a96adc5b2e58e7f1550b8 (MD5) Previous issue date: 2021en
dc.identifier.govdocDOI: https://doi.org/10.52254/1857-0070.2021.1-49.03
dc.identifier.issn1857-0070
dc.identifier.urihttps://eir.nuos.edu.ua/handle/123456789/7070
dc.language.isoen
dc.relation.ispartofseriesУДК; 621.438
dc.titleAnalysis of Compressed Air Energy Conversion Processes in a Rotary Piston Pneumatic Engine
dc.typeArticle

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