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• W3034748512 abstract "The results of studies performed personally by the author and under his leadership on the current level of environmental safety of city buses of Russian-made ecological class Euro-4 (LiAZ-5292-21) and Euro-5 (LiAZ-5256-13 and LiAZ-529-22) according to the smoke level of the exhaust gases provided by GOST R 52160-2003, and not required in actual operation in terms of the content of nitrogen oxides NOX in the exhaust gases of a diesel engine when operating at idle modes. Previous studies on passenger cars and light commercial vehicles with diesel engines (using the operating method developed by us) in accordance with UNECE rules 83.03 (based on urban driving cycles with the results of environmental pollution in g/km) showed an excess of NOX emissions from 7 to 15 times, on the basis of which a simplified technology was developed to control the environmental safety of these vehicles by indicators of the content of CO2 and NOX at idle for a conventional engine with a working m volume of 1 liter. This technique is appropriate to apply for a large vehicle mass, for which NOX emissions at idle is much higher. This will provide operational control of environmental safety by NOX and increased requirements for manufacturers. In a first approximation, the maximum permissible value of the NOX content is justified – no more than 530 ppm. (For comparison, this indicator for cars is significantly lower – no more than 200 ppm). It was additionally established that for estimating CO2 greenhouse gas emissions it is enough (with an error of no more than 10 % to decrease) to use the general indicator of fuel economy – actual fuel consumption: at the same time per 1 kg of diesel fuel, gasoline, liquefied and compressed natural gas, used in operation, 1,500 g of CO2 will be accounted for (conversion to liters is carried out according to the energy density indicators). The studies were carried out as part of comprehensive work to improve the quality of technical servicing of cars, trucks and buses, conducted at the department Operation of automobile transport and car service MSARTU (Head of the Department of Doctor of Technical Sciences, Professor A.A. Solntsev)." @default.
• W3034748512 created "2020-06-19" @default.
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• W3034748512 date "2020-06-09" @default.
• W3034748512 modified "2023-09-24" @default.
• W3034748512 title "Analysis of some indicators of environmental safety of buses with diesel engines (on the example of Moscow)" @default.
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• W3034748512 doi "https://doi.org/10.1088/1757-899x/832/1/012001" @default.
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