Mathematical Modeling of Thermal State Gas Samples in The Environmental Diagnosis Systems of Vehicle Engine
Keywords:
environmental diagnostics, engine, exhaust gases, particulate matter, sample, thermal state,Abstract
Purpose. Improving the accuracy of ecological diagnostic systems of transport engines – tunnels in the determination of one of the main indicators of toxicity engine exhaust gases - the mass emissions of particulate matter. Methods. Mathematical modeling, experimental studies, computational experiment, analysis and synthesis of information. Results. Analyzed: measuring technology for the mass emission of particulate matter, the tunnel classification, the effect of temperature of the sample gas before the filter for particulate sampling on the accuracy of the tunnels. Developed a mathematical model of the thermal state of the sample in the tunnel. Investigated the temperature sampling modes in the standard - full flow and alternative - mini- and micro-tunnels. Conclusions. Experiments confirmed the suitability of the developed mathematical model to determine the temperature of gas samples in different tunnels for different engine test modes. It is found that the temperature in the sampling mode minitunnel requires no correction, and it is necessary to adjust mikrotunnel and tunnel set corresponding to the reference.
References
Regulation No 49. Revision 5. Uniform provisions concerning the measures to be taken against the emission of gaseous and particulate pollutants from compression ignition engines for use in vehicles, and the emission of gaseous pollutants from positiveignition engines fuelled with natural gas or liquefied petroleum gas for use in vehicles. – E/ECE/TRANS/505. – 4 Мау 2011. – 602 p.
Regulation № 96. Uniform provision concerning the approval of compression ignition (C.I.) engines to be installed in agricultural and forestry tractors with regard to the emissions of pollutants by the engine. Geneva, 1995. 109 p.
ISO 8178. Reciprocating internal combustion engines – Exhaust emission measurement – Part 1: Test – bed measurement of gaseous and particulate exhaust emis-sions, 1996. 94 p.
Hirakouchi N., Fukano I., Shoji T. Measurement of Diesel Exhaust Emissions with Mini-Dilution Tunnel / N. Hirakouchi, // SAE Technical Paper Series. 1989. № 890181. 11p.
Поливянчук А.П. , Львов С.А. Повышение точности гравиметрического метода измерений выбросов твердых частиц с отработавшими газами дизеля // Двигатели внутреннего сгорания, 2013. № 1. С. 93-97.
Парсаданов И.В., Поливянчук А.П. Теоретическое и экспериментальное исследование процесса теплоотдачи в разбавляющем туннеле // Двигатели внутреннего сгорания, 2012. № 2. С. 96-101.
Михеев М.А., Михеева И.М. Основы теплопередачи. Изд. 2-е, М.: «Энергия», 1977. 344с.
Поливянчук А.П., Звонов В.А. Измерительный комплекс для определения массовых выбросов твердых частиц дизелей. // Авиационно-космическая техника и технология. Тепловые двигатели и энергоустановки. Сб. науч. тр. ХАИ.– Х., 2000. Вып. 19. С. 478–481.
Polivyanchuk A. P., Parsadanov I. V. Experimental verification of microtunnel MKT-2 on the brake stand autotractor diesel engine // Industrial technology and engineering. – Republic of Kazakh-stan, 2015. №2 (15). P. 11-16.
Polivyanchuk A., Parsadanov I., Holkina E. Creation and experimental studies of the dynamic measuring concentrations of particulates in the exhaust gases of diesel engines // TEKA. – Commission of motorization and energetics in agriculture. Poland, 2015. Vol. 15, №2. P. 15–24.
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