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Author: Vladimer Gvetadze

  • VEHICLE ENGINES. APPLICATION OF FUELS TYPES. EFFICIENCY

    Effect of adding hydrogen to a primary fuel on enjine operating modes

    • Koba Lortkipanidze
    • Vladimer Gvetadze
    • Teimuraz Kochadze
    Trans Motauto World, Vol. 8 (2023), Issue 2, pg(s) 59-60
    • Abstract
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    •  Article PDF

    Hydrogen has a good environmental performance, high energy characteristics, high burning rate and low ignition temperature. In case of using hydrogen as a primary fuel in an internal combustion engine, there is a drop in power and detonation combustion at high load modes, so hydrogen is best used in a composition with the primary fuel.
    In the mode of partial load, the hydrogen content in the fuel mixture decreases, and it should decrease as the load increases, and in the mode of full load, its amount is minimal, which will allow us to maintain the power characteristics, otherwise the power will decline. The main thing is to know in which mode what should be the ratio of hydrogen and the primary fuel, which ensures the normal flow of the operation process, which will result in primary fuel economy and reducing the toxicity of exhaust gases.
    Based on the studies conducted, we can conclude that it is preferable for the engine to work with a high content of hydrogen in the fuel
    mixture at no load and at light loads, its concentration should decrease as the load increases.

  • MATHEMATICAL MODELLING OF SOCIO-ECONOMIC PROCESSES AND SYSTEMS

    Matematical models for assessing the quality of functioning of the motor transport company

    • Giorgi Iakobidze
    • Giorgi Purtskhvanidze
    • Vladimer Gvetadze
    • Aleksandre Kamladze
    Mathematical Modeling, Vol. 7 (2023), Issue 1, pg(s) 34-35
    • Abstract
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    •  Article PDF

    In order to obtain the methods of assessing the quality of the functioning of the motor transport company, it is necessary to develop a methodology for quantitative evaluation of this quality. This methodology should be based on mathematical models of the quality of operations of the motor transport firm.
    For purposeful formation of quality, the paper proposes an adequate method of analysis of this quality. At the same time, a method of evaluating the quality of the functioning of the automobile enterprise, evaluating the quality of the decisions taken to improve this property, and forecasting the expected quality of the functioning have been developed.

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