Strategic Assessment Aspect of Vehicles’ Technical Condition Influence upon the Ecosystem in Regions

Хакимов, Р. Т.; Shirokov, S.N.; Vetrova, E.N.; Zykin, Alexey V.

doi:10.1016/j.trpro.2017.01.026

Cited by 6 publications

(2 citation statements)

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“…For the convenience of using the test results, it is recommended that the reduced heat transfer be reduced to 1 degree Kelvin [10], calculated by the formula:…”

Section: Opinions and Interpretations Regarding Recommendations For Tmentioning

confidence: 99%

Modernization of the cooling system in tractors with gas engines

2020

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With an increase in the power/weight ratio of vehicles in cities and towns, the thermal loads of many functional units increase significantly. This requires the organization of the removal of excess heat into the environment, since the violation of the proper thermal regime in individual functional units prevents the realization of the potential operational properties of the entire vehicle up to failure. At the same time, the variety of operating conditions for vehicles, causing a change in a wide range of factors of the working environment, especially road and climatic ones, creates a difficult, both in practical and theoretical terms, problem of ensuring the required thermal regime for functional units. In this regard, the paper presents a consistent development of the theory of hydrothermodynamic properties of functional units based on the principles of constructing the operational properties of vehicles. The problems determining the further search and scientific substantiation of meters and indicators for assessing the efficiency of cooling systems, as well as the development of methods, tools and equipment for calculating and studying these systems are considered. At the same time, the work presents the improvement of the working process and designs of gas engines of tractors aimed at increasing reliability through the use of new production technologies. In conclusion, the definition of scientifically grounded methods and practical solutions for improving the performance of cooling systems is given, which has an important scientific and economic significance for increasing the operational properties of agricultural tractors, substantiating the current importance.

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“…For the convenience of using the test results, it is recommended that the reduced heat transfer be reduced to 1 degree Kelvin [10], calculated by the formula:…”

Section: Opinions and Interpretations Regarding Recommendations For Tmentioning

confidence: 99%

Modernization of the cooling system in tractors with gas engines

2020

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“…Для этого можно использовать график изменения теплового баланса двигателя и радиатора в зависимости от скорости Q дв = Q p = f 2 (V a ) (рис. 2) построенный в ходе ранее проведенных исследований [9,10].…”

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Methodology for Determining the Main Indicators of the Temperature and Dynamic Characteristics of the Cooling System of an Energy Vehicle During Operation

Parlyuk

Bolshakov²

2021

Vestnik of Kazan State Agrarian University

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The efficiency of internal combustion engines of energy facilities operating in the conditions of enterprises of the agro-industrial complex depends on the stability of the thermal regime of the engine. Its provision is entrusted to the cooling system, in this article which is a radiator with a polyurethane core. The temperature regime of the engine operation affecting a number of factors is given and described - these are design parameters (design features of the radiator and the features of the working process of the radiator, taking into account the operating conditions of the tractor) and operational, which take into account the operating mode of the tractor and natural and climatic conditions. According to the research results during the operation of the tractor in steady conditions, the temperature of the coolant in the system is stable, respectively, the temperature field of the air flow at the inlet and outlet of the radiator with a polyurethane core also stabilizes. To take them into account, the coefficient of thermal properties of the radiator is introduced, which depends on the external and internal temperature-dynamic effects of the environment, and a diagram is constructed that shows the dependence of the temperature of the coolant flowing in the radiator on the generated load of the tractor during operation in the field. At the same time, the temperature-dynamic characteristic of the tractor does not depend on the design features of the engine, but on the power developed by the engine. Therefore, the heat removed from the engine into the coolant is calculated by us through the engine power. Based on this, the characteristic of the thermal balance of the engine and the heat transfer of the radiator during the operation of the tractor at full load are considered, taking into account the change in gears within the speed limits, a graph of the thermal balance of the engine and radiator versus speed is built. Based on the calculations, it was concluded that the use of the characteristics of the traction-dynamic balance of the tractor can serve as the basis for the general analysis and calculated and experimental operating modes of the automotive polymer radiator and the cooling system as a whole, taking into account the loads, climatic conditions and operating parameters of the cooling system

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Features of the Block-Modular Cooling System of Traction Vehicles

Parluk

Didmanidze

2022

Lecture Notes in Networks and Systems

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Strategic Assessment Aspect of Vehicles’ Technical Condition Influence upon the Ecosystem in Regions

Cited by 6 publications

References 0 publications

Modernization of the cooling system in tractors with gas engines

Modernization of the cooling system in tractors with gas engines

Methodology for Determining the Main Indicators of the Temperature and Dynamic Characteristics of the Cooling System of an Energy Vehicle During Operation

Features of the Block-Modular Cooling System of Traction Vehicles

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