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Загальна кількість знайдених документів : 3
Представлено документи з 1 до 3
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Tsiuman M. P. The peculiarities of heat losses simulation of automotive gasoline engine in operational conditions [Електронний ресурс] / M. P. Tsiuman, R. V. Artemenko // Автомобильный транспорт. - 2016. - Вып. 38. - С. 39-46. - Режим доступу: http://nbuv.gov.ua/UJRN/at_2016_38_8
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Tsiuman M. P. Research of use the thermal accumulator for reducing harmful emissions of the vehicular engine by rapid after-start heating of the catalytic converter [Електронний ресурс] / M. P. Tsiuman, I. V. Gritsuk, M. Smieszek // Вісник Національного транспортного університету. - 2018. - № 3. - С. 200-212. - Режим доступу: http://nbuv.gov.ua/UJRN/Vntu_2018_3_23
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Savostin-Kosiak D. Establishing the regularities of correlation between ambient temperature and fuel consumption by city diesel buses [Електронний ресурс] / D. Savostin-Kosiak, M. Madziel, A. Jaworski, O. Ivanushko, M. Tsiuman, A. Loboda // Восточно-Европейский журнал передовых технологий. - 2020. - № 6(3). - С. 23-32. - Режим доступу: http://nbuv.gov.ua/UJRN/Vejpte_2020_6(3)__4 Motor transport is the main consumer of energy resources in most countries. Atmospheric conditions, along with the vehicle design, its technical condition, driver's skill, road, and transport conditions significantly affect fuel consumption. However, in mathematical modeling, they are often taken into account by average values which can affect the accuracy of the results. The nature of the relationship between ambient temperature and fuel consumption by city diesel buses was established on the basis of experimental and analytical studies. According to the results of the analysis of experimental data, it was found that this relationship is described by polynomial regressions of the second order. The accuracy of the regression model was confirmed by Fisher's test for two city routes. Analytical studies of the effect of air density, rolling resistance, transmission efficiency, and all three factors together on fuel consumption were performed using mathematical modeling using the Physical Emission Rate Estimator methodology. It was found that rolling resistance and transmission efficiency have the greatest impact on fuel consumption. In both cases, the difference between the highest and lowest estimated value was 2,5 %. However, in absolute units, the difference is greater by 0,2 l/100 km for rolling resistance. The obtained results can be used in mathematical models of vehicle movement, in particular city buses, to take into account the dynamics of changes in fuel consumption depending on the ambient temperature. They will also be useful in mathematical models for determining harmful emissions to calculate fuel consumption at various ambient temperatures.
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