Кафедра "Двигуни та гібридні енергетичні установки"

Постійне посилання колекціїhttps://repository.kpi.kharkov.ua/handle/KhPI-Press/54

Офіційний сайт кафедри http://web.kpi.kharkov.ua/diesel/glavnaya

Від 2022 року кафедра має назву "Двигуни та гібридні енергетичні установки", первісна назва – "Двигуни внутрішнього сгоряння".

Кафедра "Двигуни внутрішнього згоряння" (ДВЗ) заснована 9 липня 1930 року у Харківському Механіко машинобудівному інституті. Читання курсів по ДВЗ розпочали на механічному факультеті ще в 1910 році, дисципліну "ДВЗ" і проєктування ДВЗ протягом 1910-1913 рр. читав граф Сергій Йосипович Доррер. Спеціальність "ДВЗ" у Харківському технологічному інституті була організована в 1918 році. У її джерел, а пізніше й кафедри ДВЗ стояв Василь Трохимович Цвєтков (1887–1954).

Від 1980 року вона є базовою серед українських закладів вищої освіти з моторобудування. За час існування кафедра підготувала понад 4000 випускників. Сьогодні на кафедрі навчається понад 200 студентів. Обсяг ліцензійного набору є одним з найбільших в університеті.

Кафедра входить до складу Навчально-наукового інституту енергетики, електроніки та електромеханіки Національного технічного університету "Харківський політехнічний інститут".

У складі науково-педагогічного колективу кафедри працюють: 2 доктора технічних наук, 6 кандидатів технічних наук; 2 співробітника мають звання професора, 5 – доцента. Серед викладачів кафедри 3 лауреата Державної премії України, 2 лауреата премії Кабінету міністрів. Від 2001 року по 2016 рік кафедру очолював Заслужений діяч науки і техніки України, лауреат Нагороди Ярослава Мудрого Академії наук Вищої школи України, Лауреат державної премії в галузі науки і техніки 2008 року, професор, доктор технічних наук, проректор університету з наукової роботи – Андрій Петрович Марченко.

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100 лет специальности "Двигатели внутреннего сгорания" в Украине
(НТУ "ХПИ", 2018) Марченко, Андрей Петрович; Парсаданов, Игорь Владимирович; Пылев, Владимир Александрович
50-лет факультету Транспортного машиностроения НТУ "ХПИ"
(НТУ "ХПИ", 2015) Епифанов, Виталий Валерьевич
В 2015 году исполняется 50 лет с момента создания факультета транспортного машиностроения Национального технического университета "Харьковский политехнический институт". Приведены сведения по истории, настоящего и перспектив развития факультета.
90-летие профессора А. А. Грунауэра
(НТУ "ХПИ", 2011) Марченко, Андрей Петрович; Григорьев, Александр Львович; Зарубина, Алла Александровна; Ткачук, Николай Анатольевич
Статья посвящена 90-летию выдающегося ученого профессора А. А. Грунауэра. Описаны некоторые вехи его биографии и направления деятельности.
Accounting the emissions of engine fuel vapors in the criteria-based assessment of the ecological safety level of power plants with reciprocating ice exploitation process
(Національний технічний університет "Харківський політехнічний інститут", 2022) Kondratenko, Olexandr Mykolayovych; Andronov, Volodymyr Anatoliyovych; Polishchuk, Tetiana Ruslanivna; Kasionkina, Natalia Dmytrivna; Krasnov, Viacheslav Anatoliyovych
This study proposed the approach and method on its basis for carrying out of the calculated assessment of the values of the comprehensive fuel and environmental criterion of Prof. I. Parsadanov as the indicator of the ecological safety level of the exploitation process of power plants with diesel reciprocating internal combustion engine, considering the mass hourly emissions of engine fuel vapor caused by the phenomena of large and small breathing of reservoirs. The purpose of the study is to develop the method for taking into account the parameters of pollutant emissions into the environment, such as motor fuel vapors due to the phenomena of large and small breathing of the power plant fuel tanks, as an independent factor of ecological safety. The calculated assessment according to the proposed method is carried out considering the properties of engine fuel, degree of a fuel tank filling, features of model of the engine operation, daily difference of atmospheric air temperature and settings of the respiratory valve of the tank. It is found that considering the emission of engine fuel vapors caused by the phenomenon of small breathing has almost no effect on the level of environmental safety, but for the option of taking into account the effect of the phenomenon of large breathing, such an effect is significant. The scientific novelty of the obtained results is that for the first time a method for considering the emission of engine fuel vapors caused by large and small breathing of fuel tanks of reciprocating internal combustion engines in complex criteria-based assessment of ecological safety. The practical value of the obtained results is that they are suitable for quantitative and qualitative assessment of the studied effects and development on this basis of technical solutions and organizational measures to reduce or eliminate them by developing appropriate environmental protection technology with actuators on a methodological basis of environmental safety management system, including the use of other steady standardized testing cycles as models of engine operation.
The application of isodromic equation for calculation of PID-controller integrated component
(Polskie Towarzystwo Naukowe Silników Spalinowych, 2019) Prokhorenko, Andriy; Samoilenko, Dmytro; Orlinski, Piotr; Talanin, Dmytro; Kravchenko, Serhii
A functional feature of the application of electronics used for the automatic control of internal combustion engines is necessity in the proportional conversion of ECU electrical signals into the mechanical processes based on corresponding elements motion. For such conversion of information actuating mechanisms are used, referred as actuators. Actuators in the form of electrical machines (stepper or precision electric motors) or electric apparatuses (electromagnets and solenoids) are the mostly widespread in ICE. As a physical object of the research, the unit of Heinzmann, model StG 6-02V that is based on a DC electric drive controlled by a pulse-width modulation signal, was selected in the current work. It has a toothed gearbox and a non-contact reverse positional connection. This actuator provides an output torque of 6 Nm and 36-degree range of output shaft rotational angle. The functional scheme of the electronic system of automatic control of a diesel engine based on mentioned device is developed. The PID regulator with feedback is used to control the actuator. A design formula that can be incorporated in the controller algorithm to calculate the integral component of the PID regulator was also obtained. Values of empirical coefficients were determined in this formula. The results of experimental confirmation of the correctness of the approach taken are presented. Thus, the new formula for determining the integral component of the PID regulator differs positively from the well-known solutions because the new approach is free from storing the whole array of previous data with discrepancy in the controller’s RAM, that simplifies the application of the developed algorithm greatly and speeds up the computational capability of the controller.
Assessment of fuel and ecological efficiency of exploitation process of reciprocating ICE of power plants with considering of emission of benzo(a)pyrene and polycyclic aromatic hydrocarbons
(Національний технічний університет "Харківський політехнічний інститут", 2020) Kondratenko, Olexandr Mykolayovych
In this study, the author has improved its previously proposed methods for determining the value of mass hourly emissions of benzene(a)pyrene and polycyclic aromatic hydrocarbons in diesel engine exhaust gases flow. The purpose of the study is to obtain the values of complex fuel-ecological criterion that characterize the ecological safety level of diesel engine exploitation process considering the emissions of benzo(a)pyrene and polycyclic aromatic hydrocarbons as toxic and carcinogenic pollutants. The distributions of such emissions have been obtained over the field of a 2Ch10.5/12 autotractor diesel engine operating modes field and over the modes of standardized steady testing cycle ESC. The mathematical apparatus and method of application of complex fuel-ecological criterion of Prof. Igor Par-sadanov have been improved. The author has obtained the distributions of these indicator values of ecological safety level of power plants with reciprocating ICE exploitation process over the field of 2Ch10.5/12 autotractor diesel engine operating modes of and over modes of standardized steady testing cycle ESC, as well as its average operating value. It has been established that, average operating values of Kfe criterion and the δKfe effect for all investigated variants of accounting for mass hourly emissions of B(a)P and PAH in diesel engine exhaust gas flow are almost identical and reduce the value of the Kfe criterion on 29 – 32 % – from 63 ‰ up to 42 – 45 ‰. The scientific novelty of the obtained results is that the approach of Prof. Igor Parsadanov for criteria-based assessment of fuel-ecological efficiency of autotractor diesel engines exploitation process as a part of power plant considering the of mass hourly emissions of benzo(a)pyrene and polycyclic aromatic hydrocarbons with RICE EG flow as the toxic pollutants and also methods for determining of such emissions and ponderability of such pollutants received further development towards in direction of application of this mathematical apparatus for standardized steady testing cycles.
The basic algorithm of the all-speed governor with electronic control and its hardware implementation
(Łukasiewicz Instytut Technologii Eksploatacji, 2018) Prokhorenko, Andriy; Samoilenko, Dmytro; Orlinski, Piotr; Wojs, Marcin K.; Kravchenko, Serhii; Talanin, Dmytro
The article considers the results of theoretical and experimental studies devoted to the creation of an electronic control system of fuel injection in diesel engines. The method of synthesis of the algorithm for all-speed electronic governor is described. The functional scheme used for the fuel delivery system control based on the microcontroller, the HEINZMANN electric servo actuator, and the BOSCH high pressure fuel pump has been developed and practically implemented. The experimentally obtained static characteristics of the automatic control system under various governor settings are given.
Biobiesel fuel spray penetration modelling
(НТУ "ХПИ", 2015) Kolodnytska, Ruslana Vitaliyivna
A model for biodiesel spray penetration under conditions relevant to internal combustion engines is suggested. A parameter referred to as "length parameter" is introduced to define the fuel properties. The model predictions are validated for Hemp oil Methyl Ester (HME), Rapeseed oil Methyl Ester (RME) and Soybean oil Methyl Ester (SME) comparing with those of diesel fuel under different injection conditions and ambient pressures. The model is shown to produce a good agreement with the experimental data that available both for diesel and biodiesel fuels. It has been found that the spray penetration for Hemp oil Methyl Ester is very close to that of Soybean oil Methyl Ester.
Centrifugal compressor performance maps treatment for internal combustion engines operating cycle simulation
(Національний технічний університет "Харківський політехнічний інститут", 2021) Minchev, Dmytro; Varbanets, Roman
Simulation of the supercharged internal combustion engines operation cycle is impossible without correct estimation of the supercharger operating parameters. Standard approach is to use specially prepared performance maps of compressor and turbine of the turbocharger, which are based on the experimental (or manufacturer’s) raw data. Centrifugal compressor performance maps interpolation, extrapolation and treatment provides challenging requirements as it is important to get correct simulation under such special conditions as compressor choke, rotating stall and pumping surge. At the same time it’s important to obtain the fast and stable calculations of the engine’s operating cycle. Blitz-PRO – online internal combustion engines operating cycle simulation service – offers supercharger performance maps preprocessing and implementation. It provides three different modes of compressor surge consideration during calculations: 1) full-scale surge mode using Moore-Greitzer approach; 2) mild surge mode with flexible adjustment; 3) “stable” mode, when the surge is neglected and the compressor constant-speed lines are extended from the rotating stall point to the lower mass flow region with the hyperbolic equation. Using the MAN 8G70ME-E engine 12140 kW, 82 rpm operating point as an example, the calculation results are compared for three modes of compressor surge consideration. The “stable” mode provides the fastest and the most stable calculations, while the calculations under the full-scale surge mode could generate the numerical (nonphysical) instability of calculations, which are caused by the high sensitivity of the two-stroke engines to the gas exchange processes as it is shown. The mild surge mode provides fast and stable enough calculation with the surge consideration ability, which could be assumed as the best solution for the given example. The researcher should choose between provided three modes of the centrifugal compressor surge consideration according to the calculations tasks, preferring “stable” mode for initial model setup and mild surge mode for the surge probability check, while the accurate compressor surge simulation needs further development.
Concept of vibroacoustic diagnostics of the fuel injection and electronic cylinder lubrication systems of marine diesel engines
(2022) Varbanets, Roman; Shumylo, Oleksandr; Marchenko, Andrii; Minchev, Dmytro; Kyrnats, Vladyslav; Zalozh, Vitalii; Aleksandrovska, Nadiia; Brusnyk, Roman; Volovyk, Kateryna
Although direct measurements of the fuel injection pressure and the travel of the injector needle in conjunction with measurements of the valve train mechanism timing can provide complete diagnostic information about the technical conditions of the fuel injection and valve train systems, this requires the installation of sensors and other equipment directly into the systems, which is possible within research laboratories but is generally forbidden during operation of the ship. Malfunctions in the fuel injection and valve train systems can also be identified from the indicator diagrams of an engine operating cycle, expressed as P(V) and P(deg) diagrams. The basic parameters of the engine operating cycle, such as the maximum combustion pressure Pmax, compression pressure Pcompr, and indicated mean effective pressure IMEP, can also be used to indicate deviations from proper engine operation. Using a combination of a vibration sensor with an in-cylinder gas pressure sensor widens the capabilities of diagnostics for marine diesel engines under operational conditions. A vibration sensor with a magnetic base can help in determining the timings of the lifting and landing of the injector needle, fuel delivery by the fuel injection pump, opening and closing of the circulation of heated heavy fuel oil, and opening and closing of the gas distribution valves. This also offers a promising solution for diagnostics of the cylinder lubrication oil injectors. The proposed approach allows valuable information to be received during engine operation in accordance with the principle of non-destructive control, and can help in early detection of possible engine malfunctions.
Description of mass hourly emissions of particulate matter of diesel engine by beta-distribution with taking into account the passport accuracy of gas analyzer
(Національний технічний університет "Харківський політехнічний інститут", 2019) Strokov, Alexander Petrovich; Kondratenko, Alexander Nikolaevich; Koloskov, Vladimir Yurevich; Mishchenko, Igor Viktorovich
Relevance of the study is that qualitative and quantitative results of solving of its tasks suitable for developing of methodic of decreasing of methodical errors of determination of values of mass hourly emission of particulate matter in exhaust gas flow of reciprocating internal combustion engine with using of conversion formula and readings of opacimeter and gas analyzer. Purpose of the study is obtaining of parameters of beta-distribution that approximate the empirical law of distribution of values of mass hourly emission of particulate matter in exhaust gas flow of reciprocating internal combustion engine which achieved by in direct measuring with taking into account the accuracy of direct measuring of its components that has nonlinear impact. Task of the study is obtaining of rational values of number of multiple measuring of coefficient of atenuation of light flux and volume concentration of unburned hydrocarbons in exhaust gas on individual operational regime of diesel engine during bench motor tests for case of automation of measuring process. Methodic of the study is in consistently application of following methods: analysis of scientific and technical literature, analysis of data of bench motor tests, application of prof. Parsadanov conversion formula, mathematical apparatus of beta-distribution, numerical calculation studies. It was detected that empirical distribution of values of mass hourly emission of particulate matter in exhaust gas flow of reciprocating internal combustion engine which obtained with using of one of known conversion formula of prof. Parsadanov as the function of indicator of opacity and toxicity of exhaust gas, has a significant difference from the normal distribution law at number of measurements less than 50 even in case of confirmation of the hypothesis of normality of distribution law of readings of opacimeter into limits of its passport measuring errors. That results were described by the mathematical apparatus of beta-distribution by carrying out the numerical calculation studies with using of program product written of the language Borland Pascal 7.0. The parameters of beta-distribution were obtain as the function of number of multiple measuring.
Determination of rational composition and properties of building materials based on ash-and-slag waste from coal and masute fuel combustion at heat-and-electic power station
(Національний університет цивільного захисту України, 2022) Kondratenko, O.; Koloskov, V.; Koloskova, Н.; Kozulia, M.; Oliinyk, T.; Krasnov, V.
Determination of reference values of complex fuel and ecological criterion as the separate independent factor of ecological safety
(Національний технічний університет "Харківський політехнічний інститут", 2021) Kondratenko, Olexandr Mykolayovych; Andronov, Volodymyr Anatoliyovych; Koloskov, Volodymyr Yuriyovych; Tkachenko, Olexandra Olexandrivna; Kapinos, Yelyzaveta Volodymyrivna
In this study the approach and method on its basis for calculated assessment of reference values of complex fuel-ecological criterion of Prof. І. Parsadanov as separate independent ecological safety factor and as reference points of psychophysical scale of the partial desirability function when using it as the ecological safety factor of power plants with reciprocating internal combustion engines exploitation process was proposed. Also in the study calculated assessment of reference values of ecological indicators of reciprocating internal combustion engines as components of complex fuel-ecological criterion depending on magnitudes of effective power and coordinates of field of engine operating regimes for different levels of statutory ecological standards in force in Ukraine and previously in force was carried out. Thus, calculated assessment of reference values of complex fuel-ecological criterion and its components was performed and obtained the distribution of such reference values in field of 2Ch10.5/12 autotractor diesel engine operating regimes depending as well as dependences of such reference values on magnitudes of level of ecological standards EURO, engine effective performance and lower calorific value of engine fuel. So, the study for the first time proposes the approach to calculated assessment of reference values of the complex fuel-ecological criterion of Prof. І. Parsadanov as reference points of the psychophysical scale of the Harrington's partial desirability function when using it as the separate independent ecological safety factor of exploitation process of power plants with reciprocating ICE. The method, based on the proposed approach for calculative evaluation of reference values of the complex fuel-ecological criterion of Prof. I. Parsadanov as reference points of psychophysical scale of partial desirability function is suitable for obtaining necessary data for the complex criterion evaluation of the ecological safety level of operation process of power units with piston ICE using generalized Harrington desirability function, in the structure of which the complex fuel-ecological criterion acts as a distinct factor of environmental safety.
Digital twin of gas reciprocating compressor unit: concept, architecture & pilot implementation
(Національний технічний університет "Харківський політехнічний інститут", 2021) Prokhorenko, Andriy; Kravchenko, Serhii; Solodkii, E.
Combination of information and operational technologies has led to a new way of production, to a new technological revolution, known as Industry 4.0. The Digital Twin plays a central role in this technology. The Digital Twin is a predictive maintenance tool, and allows you to simulate various options for device failures taking into account their operation modes, environmental influences and various degrees of wear. The concept of creating a digital twin of a real physical object of research is proposed - an AJAX DPS-180 internal combustion engine with a gas piston com-pressor, which is designed to pump gas from gas wells. A feature of its work is autonomous long-term operation in the field with the remoteness of the service personnel, direct enviro nmental impact and ensuring the reliability and stability of work. Therefore, monitoring the parameters of the engine with the subsequent prediction of its failures is especially important. The work on creating a digital twin for AJAX DPS-180 is being carried out in cooperation and with the support of Armco-Engineering, the operator of this equipment. Six stages of the process of creating a digital twin of a given object are shown: collection and preliminary processing of data on the technical state of a real object; early detection of malfunctions, predicting the time of failure; service planning; optimization of financial and time resources for service. Equipping a real object with various sensors made it possible to continuously collect data on its technical condition, and technologies of the industrial Internet of things, such as Big Data and the predictive statistical model, predict failure times with high accuracy. The developed and implemented schemes for equipping an object with data collection equipment and a diagram of the flow of this data in the Internet of Things are presented. The basis of the data collection system is a microcontroller, a set of a crankshaft speed sensor and thermocouples, a multiplexer and 16-bit analog-to-digital converters that convert thermo-EMF of thermocouples. At the moment, channels for measuring the speed, coolant and exhaust gas temperatures have been implemented. It is proposed to use the ThingSpeak server as a remote resource as a cloud aggregator and carrier of this data. The MATLAB mathematical package integrated into the resource is used as a data analyzer.
Effective and reliable operation of marine diesel by working process monitoring
(НТУ "ХПИ", 2007) Varbanets, R. A.; Ivanovsky, V. G.; Varbanets, A. N.
The basic characteristics of diesel engine working process monitoring system are considered. The low speed main engine one cylinder diagnostics example of fuel equipment and gas distribution mechanism is resulted.
Effectiveness evaluation of the measuring system with a microtunnel MUKT-2 for ecological diagnosis of diesel locomotives
(НТУ "ХПИ", 2018) Polivyanchuk, A. P.; Kaslin, O. I.; Skuridina, O. O.
The article is devoted to the solution of the urgent task of reducing the duration and cost of the procedure for measuring the average operating mass emission of particulate matter with exhaust gases of a diesel engine – the standardized environmental indicator PM. The paper describes the technical characteristics and operation principle of a universal measuring system with a microtunnel MKT-2 for controlling the mass emissions of particles with exhaust gases from various types of diesel engines. The method of complex evaluation of the effectiveness of this system was developed by the criteria: accuracy of measurements, duration of sampling of particles in standardized test modes, cost-effectiveness of using MKT-2. With the help of this technique and the results of ecological tests of diesel engine 3A-6D49 of diesel locomotive TGM6 on the cycle ISO 8178-F, the efficiency of MKT-2 was conducted, as a result of which it was established that the resulting measurement error of PM is 3.1%, which corresponds to the requirements of normative documents; the duration of sampling of particles is from 1.8-2.5 minutes – in the modes of the average and nominal power of the diesel engine to 7.5 minutes – at idle; MKT-2 is characterized by a high economic efficiency of use: additional fuel costs during the ISO 8178-F cycle associated with increased sampling time of particles are negligible and amount to 0.5%. Recommendations have been developed for the improvement of MKT-2, the imple-mentation of which will reduce the duration of sampling by 3.8 times.
Evaluation of Power Indicators of the Automobile Engine
(Science Publishing Corporation, 2018) Dhahad, Hayder Abed; Alawee, Wissam Hameed; Marchenko, A. P.; Klets, D.; Akimov, O.
A method for estimating the power characteristics of the car engine in various driving regimes is proposed. It is determined that the vol-ume of the free power (engine power reserve) allows the driver to implement the turning parameters and the time of its completion, which are set by the steering parameters, position and the speed of the steering wheels rotation. The engine power reserve is necessary to provide the required maneuverability indicators. The engine power during maneuvering is spent on overcoming the resistance to move-ment and on providing the impact controlled by the maneuver. The first component of the engine power can be called connected, and the second one can be called the free one or a controlled component. The received analytical expressions allow carrying out at the design stage a rational choice of capacity of the engine by the condition of maintenance of demanded properties of maneuverability. The developed method for constructing the refined acceleration characteristics of the engine makes it possible to determine the dynamic capabili-ties of the car, taking into account its design features and operating conditions.
Evaporation of binary ethanol-butanol mixture droplets
(НТУ "ХПИ", 2018) Kopiyka, O. K.; Olifirenko, Yu. O.; Kalinchak, V. V.; Darakov, D. S.; Fudulei, T. O.; Raslavičius, L.
This paper presents the results of theoretical and experimental studies of individual droplets evaporation of ethanol (E), butanol (B) and their mixture at 60% ethanol on mass (60% E + 40% B) in the heated air environment in the temperature range of 350-700K and atmospheric pressure. The appearance of effective technologies for the synthesis of renewable fuels from biomass opens the new possibilities for the use of these alcohols as alternative fuels. In practice, alternative fuels are used as components for mixture with fossil fuels. One of the main problems of attempting to increase part of biofuel additions into mixture with transport fuels lies in difference of biofuels thermophysical properties and ones for fossil fuels. These features substantially influence on processes of drop formation and evaporation, ignition and combustion of the modified air-fuel mixture in a combustion chamber. The fuel drops evaporation as the initial stage of combustion in the engine chamber determines efficiency of all other processes. Therefore, the studies of biofuel drop evaporation and ones for their mixtures are relevant. Theoretical modelling of drops vaporization process of these liquid biofuels mixture has been conducted by the using discreet-component approach with the system of thermo- and masstransfer equations for each component of the mixture. So, this system is including (i+1) equations. For evaporation kinetics experimental study the suspended drop’s method was used. There are the received dependences of the droplet current diameter and temperature on time which demonstrate the availability of the staging of the mixture evaporation. On the first stage ethanol as the liquid with lower boiling temperature evaporates more intensively. After that there is only butanol at the droplet as the liquid with higher boiling temperature. The second stage is the stationary vaporization of the leftover component of the mixture. The analysis of dependence d²(t) allowed to estimate duration of droplets evaporation both for single-component biofuels and for their mixture. The experimental values of evaporation duration correlates with calcula-tions data.
Experimental investigation and modeling of diesel engine fuel spray
(НТУ "ХПИ", 2008) Kolodnytska, R. V.; Karimi, K.; Crua, C.; Heikal, M. R.; Sazhina, E. M.
A model for spray penetration in diesel engines is suggested. It is based on momentum conservation for a realistic mass flow rate transient profile. The modelling approach is based on tracking of centre-of-fuel-mass (COFM) of injected diesel fuel. The model was validated for Bosch and Delphi injectors using the data obtained at Sir Harry Ricardo automotive centre, University of Brighton, UK. The model is shown to produce a good agreement with the experimental data until major spray instability (such as cluster shedding). It has been found that the dispersion time (the adjustable model parameter) is increasing when injection pressure is decreasing. This follows the known tendency for spray breakup time.
Features of determination of the efficiency of devices for improvement of ecological safety level of vehicles with reciprocating ICE exploitation
(Національний технічний університет "Харківський політехнічний інститут", 2019) Kondratenko, Olexandr Mykolayovych; Chernobay, Gennadiy Olexandrovych; Derkach, Juriy Fedorovych; Kovalenko, Svitlana Andriivna
This article describes the results of analysis and numerical study of prof. I.V. Parsadanov conversion formula as the one of relevant issues of the metrological features of determination of particulate matter mass hourly emission in exhaust gases flow of reciprocating internal combustion engine on the testing bench without dilution tunnel. Purpose of the study is detection of relationship between magnitudes of cleaning efficiency coefficients of particulate matter filter of diesel reciprocating internal combustion engine for unburned hydrocarbons volume concentration in exhaust gas flow and emission of particulate matters with using of conversion formula for whole dia pason of changing of influencing factors. Object of the study is efficiency of operation of system of neutralization of legislative normalized pollutants in diesel internal combustion engine exhaust gases flow, namely particulate matter filter. Subject of the study is relationship between magnitudes of indicators that characterized object of the study which connected with each other by conversion formula. It was showed that the magnitudes of values of efficiency coefficients of operation of particulate matter filter of diesel reciprocating internal combustion engine for indicators of opacity and concentration of unburned hydrocarbons in exhaust gas which was obtained by direct measurements during bench motor tests and also mass hourly emission of particulate matter in exhaust gas flow which was obtained with using of the conversion formula, is not equal to each other for every individual operational regime of diesel engine.Calculation assessment and graphical illustration of relationship between magnitudes of this coefficients for unburned hydrocarbons volume concentration in exhaust gas flow and emission of particulate matter for whole diapason of changing of influencing factors was carried out. For the first time it was detected the differences between magnitudes of values of efficiency coefficients of particulate matter filter operation process of diesel internal combustion engine in pairs for mass hourly particulate matter emission with exhaust gases flow and opacity and toxicity of exhaust gases which connected with each other by conversion formula.