Autor: Mamala, J - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Szacowanie wartości rozkładu emisji tlenków azotu w silniku o zapłonie samoczynnym
Estimating the value of decomposition emissions of nitrogen oxides in the compression ignition engine
Autorzy:: Graba, M.
Mamala, J.
Bieniek, A.
Powiązania:: https://bibliotekanauki.pl/articles/133293.pdf
Data publikacji:: 2015
Wydawca:: Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:: silnik o zapłonie samoczynnym
emisja
tlenek azotu
estymator
diesel engine
emissions
nitrogen oxide
estimator
Opis:: W niniejszym artykule dokonano eksperymentalnej i numerycznej analizy emisji tlenków azotu zawartych w spalinach silnika o zapłonie samoczynnym. Następnie na podstawie otrzymanych danych pomiarowych sformułowano i rozwiązano problem identyfikacji emisji tlenków azotu zawartych w spalinach. Otrzymane wyniki estymacji emisji tlenków azotu zweryfikowano podczas testów badawczych na badanym obiekcie. Opisano obiekt badań oraz wykorzystany nieliniowy model statyczny emisji tlenków azotu dla układu bez i z recyrkulacją spalin. W artykule wykazano, że zastosowanie odpowiednio przygotowanego modelu matematycznego, pozwala na estymację emisji tlenków azotu zawartych w spalinach silnika o zapłonie samoczynnym pojazdu off-road.
This article shows the experimental and numerical analysis of emissions of nitrogen oxides contained in the exhaust gas of compression ignition engine. There was formulated and solved the problem how to identify the nitrogen oxides’ emissions in the exhaust gases, based on the measurement data. The results of nitrogen oxides emissions’ estimation were verified during research on the test object. There were also described the object of study and a non-linear static model of nitrogen oxides’ emission for two systems - with and without exhaust gas recirculation. The article shows that the use of a properly prepared mathematical model allows to estimate emissions of nitrogen oxides contained in the exhaust gas of diesel engines in off-road vehicle.
Źródło:: Combustion Engines; 2015, 54, 3; 161-169
2300-9896
2658-1442
Pojawia się w:: Combustion Engines
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: The influence of the throttle inclination characteristics of a SI engine on fuel consumption in driving cycles
Autorzy:: Hennek, K.
Graba, M.
Mamala, J.
Powiązania:: https://bibliotekanauki.pl/articles/133829.pdf
Data publikacji:: 2017
Wydawca:: Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:: fuel consumption
driving cycle
NEDC
throttle inclination regulator
simulation
zużycie paliwa
test jezdny
regulator nachylenia przepustnicy
symulacja
Opis:: This dissertation shows the analysis of the selected indicators of the work of a passenger vehicle drivetrain designated with the use of the Road Load Engine Simulator. In a digital simulation, an internal – combustion engine is saved in a form of numerical speed characteristics in the computers memory. Basing on a virtual vehicle, some indicators of the drivetrain of a passenger vehicle have been determined, while driving with five electronic throttle inclination regulator settups. The simulation results of e.g., throttle repeal speeds and fuel consumtion are summarized in a tabular and graphic form and some of them are expressed per 100 kilometer of the distance covered. Both synthetic and real driving cycles were analyzed during the study and their influence on the egines fuel consumption was also shortly described.
Źródło:: Combustion Engines; 2017, 56, 3; 78-83
2300-9896
2658-1442
Pojawia się w:: Combustion Engines
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Wielofazowy wtrysk paliwa dla silników z zapłonem samoczynnym wyposażonych w rzędową pompę wtryskową
Multi-phase injection of fuel for compression-ignition engines equipped with an in-line injection pump
Autorzy:: Graba, M.
Lachowicz, A.
Mamala, J.
Bieniek, A.
Powiązania:: https://bibliotekanauki.pl/articles/287533.pdf
Data publikacji:: 2010
Wydawca:: Polskie Towarzystwo Inżynierii Rolniczej
Tematy:: pompa wtryskowa
elektrozawór
pojazd rolniczy
wtrysk wielofazowy
injection pump
solenoid valves
farm vehicle
multi-phase injection
Opis:: Restrykcyjne przepisy odnośnie dopuszczalnych norm emisji spalin stawiają przed koncernami produkującymi pojazdy rolnicze coraz to ostrzejsze wymagania, co do ilości dopuszczalnych szkodliwych substancji emitowanych przez jednostki napędowe tych pojazdów do atmosfery. W opracowaniu przedstawiono koncepcje modernizacji tradycyjnej rzędowej pompy wtryskowej, umożliwiającej sterowanie obciążeniem silnika nie zależnie od położenia pedału mocy.
Restrictive legal regulations concerning acceptable exhaust emission standards pose increasingly stricter requirements for agricultural vehicle producers with regard to the admissible quantities of harmful substances emitted into the air by driving units of these vehicles. The study presents concepts of modernisation of the traditional in-line injection pump which makes it possible to control the engine load irrespective of the position of the power pedal.
Źródło:: Inżynieria Rolnicza; 2010, R. 14, nr 5, 5; 29-35
1429-7264
Pojawia się w:: Inżynieria Rolnicza
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Comparative analysis of the operating indexes of manually and automatically controlled passenger car powertrain system at variable load states
Autorzy:: Graba, M.
Mamala, J.
Bieniek, A.
Hennek, K.
Powiązania:: https://bibliotekanauki.pl/articles/245358.pdf
Data publikacji:: 2017
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: fuel consumption
spark ignition engine
variable load
engine efficiency
motion resistance
Opis:: This article reports the results of a study into operating parameters of a system consisting of an SI engine and a powertrain in a Fiat Panda passenger car in the conditions of a variable load. The analysis was primarily concerned with the variability of fuel consumption resulting of the changing load applied to the driving wheels in the conditions of a test performed on chassis dynamometer for manual and automatic controlled transmission gear change The test bench included a dedicated driving cycle, which was developed as cycle with periodically changed constant linear speed of the car every 10 km/h. According to the vehicle set speed, the load on its wheels was determined by the basic resistance as rolling resistance, air resistance and resistance corresponding to road inclination. Each period of a drive cycle corresponding to steady state driving gave the average instantaneous values of drive system performance indicators. The waveforms of these indicators were recorded and then averaged and presented as representative points of the powertrain system that were analysed. The focus of the study involved the identification of the points characterized with the minimum specific fuel consumption and impact of type of powertrain control on emission of CO2 from passenger car SI engines.
Źródło:: Journal of KONES; 2017, 24, 4; 39-46
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Nitrogen oxides emission estimator for a diesel engine use to reduce the emission of harmful substances in exhaust gas to environment
Autorzy:: Graba, M.
Mamala, J
Bieniek, A.
Hennek, K.
Powiązania:: https://bibliotekanauki.pl/articles/246302.pdf
Data publikacji:: 2017
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: nitrogen oxides emission
diesel engine
estimation
combustion engines
air pollution
environmental protection
Opis:: This article reports the results of experimental and numerical analysis of emissions of nitrogen oxides in exhaust gas to the environment from a turbocharged diesel engine of a tractor. The problem of identifying nitrogen oxides emissions from the exhaust gases was formulated and subsequently solved, based on data gained from measurements. The results of estimation of nitrogen oxides emissions were verified on the basis of research on a test object. The object of the study and a non-linear static model of nitrogen oxides emission were also described for two systems – with and without exhaust gas recirculation. The article demonstrates that the use of an adequately selected mathematical model can lead to the estimation of emissions of nitrogen oxides contained in the exhaust gas of diesel engines in an off-road vehicle. The created model can be used to control the valve of the exhaust gas of recirculation system and so reduce the emission of harmful substances to the environment. The presented research results show the comparison of estimated and measured nitrogen oxides concentration. The estimated value from the mathematical model concentration is about from 0.7 s to 1 s earlier than the value measured by the sensor, therefore the exhaust gas recirculation system could be controlled accordingly before nitrogen oxides are formed.
Źródło:: Journal of KONES; 2017, 24, 3; 87-94
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Device for control the valvetrain and cylinder pressure of a spark-ignition engine
Autorzy:: Mamala, J.
Graba, M.
Bieniek, A.
Hennek, K.
Powiązania:: https://bibliotekanauki.pl/articles/241981.pdf
Data publikacji:: 2018
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: combustion engines
environmental protection
variable compression ratio
valve control
Opis:: This article describes the method of controlling an electric magnetic linear actuator that moves an inlet valve of an internal combustion engine. Thanks to the use of the electric control of the inlet valve of the internal combustion engine, it was possible to implement a variable effective compression ratio of the operating power unit, adapting it to the current needs and engine load. In this design, valvetrain was modified by introducing an autonomous intake valve operation with the use of a specially designed electromagnetic actuator. The introduction of this system necessitated an additional modification of the intake camshaft. The control was carried out with the use of a real-time controller with a built-in FPGA unit. The proposed design of a system with an electromagnetic actuator will allow obtaining an additional degree of freedom in the control unit. Particular attention should be paid to registered values or air pressure in the intake stroke for a closed or partially opened throttle, which generates significant pumping losses. The use of an electromagnetic actuator in the intake can help reduce said losses.
Źródło:: Journal of KONES; 2018, 25, 3; 339-346
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Possibilities of using a wireless telemetry system of a recreational vehicle (off-road)
Autorzy:: Graba, M.
Mamala, J.
Hennek, K.
Prażnowski, K.
Powiązania:: https://bibliotekanauki.pl/articles/244548.pdf
Data publikacji:: 2018
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: telemetry
wireless data acquisition
all-terrain vehicle
CAN bus
Opis:: The development of electronic systems has significantly contributed to the rapid increase in the number of controllers working in vehicles, and thus the amount of data transferred between them. The large amount of information sent prevents the driver from directly mastering or understanding them, hence it was necessary to limit the displayed parameters on the instrument cluster to the most important ones, so that the driver can focus on driving. However, in motor sports and in various types of road tests or research, where the driver is supported by an additional team of engineers, information sent between vehicle controllers can prove extremely valuable. Most often, the whole staff of people responsible for conducted traction tests does not occupy the vehicle, so as not to disturb the conditions. Their analysis usually takes place in a designated service spot, in which case the parameters from the on-board data transmission network are usually transmitted by radio from the vehicle to the archiving system. Therefore, research into the development of wireless data transmission systems from vehicle controllers is also carried out at the Opole University of Technology. This article describes the possibilities of using a system built at the Opole University of Technology for wireless conduction of diagnostics and analysis of current operating parameters of a recreational All-Terrain Vehicle (ATV). In addition, in the designed system, it is also possible to connect external sensors to analyse parameters normally not registered during the course on normal vehicle operation.
Źródło:: Journal of KONES; 2018, 25, 3; 197-203
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Comparative analysis of the fuel consumption of vehicles equipped with various types of automatic transmissions
Autorzy:: Graba, M.
Mamala, J.
Bieniek, A.
Ulfik, A.
Powiązania:: https://bibliotekanauki.pl/articles/949511.pdf
Data publikacji:: 2018
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: automatic transmission
fuel consumption
control algorithm
CVT
automotive powertrain
road slope
Opis:: The growing number of vehicles moving on Polish roads equipped with various types of automatic transmissions prompted the authors of this publication to carry out research to assess the impact of the use of this type of transmission on the fuel consumption of these vehicles. The presented article presents a comparative analysis of the fuel consumption of vehicles of different manufacturers equipped with automatic transmissions moving in specially prepared driving cycles for research purposes. In the developed driving cycle, the vehicle speed was gradually increased every 10 km/h, maintaining each speed for a period of at least 30 seconds in order to stabilize the measurement results. The tests were carried out for various load stages of the drive system. Load differentiation was made by simulating driving in the prepared cycle for simulated different slopes of the road. The tests were carried out on the MAHA MSR500 chassis dynamometer, and the obtained results for the vehicle moving in automatic mode, where the transmission controller selected the gear ratio according to the programmed algorithm, were compared with the vehicle's fuel consumption for the vehicle gear selected by the driver in the driving cycle. The control software used to test the chassis dynamometer allows taking into account the increasing resistance of traffic along with the increase of vehicle speed, which greatly approximates the simulated conditions in the laboratory to the conditions on the road. The main purpose of this publication is to check whether using automatic transmissions or other control algorithm of these gears can achieve a reduction in fuel consumption.
Źródło:: Journal of KONES; 2018, 25, 4; 119-124
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Możliwości poprawy własności emisyjnych silnika o zapłonie samoczynnym przy zastosowaniu katalitycznego dodatku do paliwa
Possibilities to improve emission property of compression ignition engine by applying of catalytic fuel additives
Autorzy:: Bieniek, A.
Mamala, J.
Graba, M.
Prażnowski, K.
Powiązania:: https://bibliotekanauki.pl/articles/133361.pdf
Data publikacji:: 2015
Wydawca:: Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:: katalityczny dodatek do paliwa
emisja NOx
PM
przebieg ciśnienia w cylindrze
silnik o zapłonie samoczynnym
catalytic fuel additives
emission NOx
in-cylinder pressure course
compression ignition engine
Opis:: Opracowanie zawiera krótką analizę dostępnych w literaturze wyników badań dotyczących wpływu katalitycznych dodatków do paliwa bazujących na metalach na emisję substancji szkodliwych. Główna część opracowania bazuje na analizie przeprowadzonych badań stanowiskowych, przy zasilaniu silnika badawczego paliwem z katalitycznym dodatkiem o handlowej nazwie ED+. W publikacji dokonano analizy wpływu katalitycznego dodatku do paliwa na emisję PM oraz NO_x silnika o zapłonie samoczynnym. Równocześnie podjęto próbę określenia wpływu spalania paliwa z dodatkiem ED+ na przebieg ciśnienia w cylindrze oraz temperaturę spalin.
The paper include short analysis of publicated research results as influence of catalytic fuel additives based on metals at emission of hamful substances. Main part of the paper based on analysis of research results realized on engine test bench by fueling of research engine with catalytic fuel additives ED+. In this study analysis of influence of catalytic fuel additives on emission of NO_x and PM at compression ignition engine was performed. Simultaneously an influence of combustion of fuel with fuel additives ED+ at in-cylinder pressure course and exhaust gases temperature was attempted.
Źródło:: Combustion Engines; 2015, 54, 3; 968-977
2300-9896
2658-1442
Pojawia się w:: Combustion Engines
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Impact of EGR control at in-cylinder pressure and ecological properties of CI off-road vehicle engine
Autorzy:: Bieniek, A.
Mamala, J.
Graba, M.
Hennek, K.
Powiązania:: https://bibliotekanauki.pl/articles/133493.pdf
Data publikacji:: 2017
Wydawca:: Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:: exhaust gas recirculation
in-cylinder pressure
mass fraction burning
differential pressure
nitrogen oxides
NOx
particulate matter
PM
recyrkulacja spalin
ciśnienie w cylindrze
spalanie frakcji masowej
różnica ciśnień
tlenki azotu
cząstki stałe
Opis:: An attempt has been made to clarify the effect of wide-ranging control of the exhaust gas recirculation system on the cylinder pressure and ecological engine performance. This publication contains the results of tests performed on the CI (compression ignition) engine of the off-road vehicle mounted on the test bench. The study was based on advanced EGR control with a proportional valve and a very efficient exhaust gases cooling system. Analysis of the test results is based on the cylinder pressure and the concentration of NOx and PM components at exhaust gases. The study included the influence of the exhaust gas recirculation system control on parameters such as differential pressure, MBF, and relative NOx and PM emissions. As demonstrated by the analysis conducted, the EGR valve control method and the exhaust gas cooling intensity significantly affect the cylinder pressure and its ecological performance.
Źródło:: Combustion Engines; 2017, 56, 3; 88-95
2300-9896
2658-1442
Pojawia się w:: Combustion Engines
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: Sterowanie adaptacyjne systemem recyrkulacji spalin w aspekcie obniżenia emisji substancji szkodliwych dla klasycznego silnika ZS
Adaptive control of the system of exhaust gas recirculation in terms of reducing the emissions of deleterious substances in a classic compression ignition engine
Autorzy:: Graba, M.
Bieniek, A.
Mamala, J.
Lechowicz, A.
Powiązania:: https://bibliotekanauki.pl/articles/292262.pdf
Data publikacji:: 2011
Wydawca:: Polskie Towarzystwo Inżynierii Rolniczej
Tematy:: recyrkulacja spalin
zawór EGR
emisja substancji szkodliwych
pojazd rolniczy
exhaust gas recirculation (EGR)
emission
deleterious substances
agricultural vehicle
Opis:: W pracy przedstawiono koncepcję modernizacji układu recyrkulacji spalin silnika ciągnika rolniczego firmy Zetor Forterra 125. Jest to pojazd typu nonroad, stanowiący obecnie aktualną ofertę handlową, a spełniający obowiązującą normę emisji spalin według dyrektywy Unii Europejskiej EU -97/68/EC, bardzo rozpowszechnionego wśród ciągników i maszyn rolniczych użytkowanych w Europie środkowej i wschodniej. Celem modernizacji jest opracowanie nowego systemu recyrkulacji spalin pozwalającego na ograniczenie emisji substancji szkodliwych w spalinach silnika emitowanych do środowiska. Ponadto w artykule przedstawiono wyniki własnych badań stanowiskowych dla silnika wyposażonego w nowy programowalny zawór recyrkulacji spalin.
The study presents the concept of modernisation of the exhaust gas recirculation system of Zetor Forterra 125 farm tractor. It is a non-road vehicle, presently available for sale, it complies to the current exhaust gas emission norm, according to the directive of European Union EU - 97/68/EC. The vehicle is one of the most popular tractors and agricultural machinery used in Central and Eastern Europe. The purpose of modernisation is to evaluate a new system of exhaust gas recirculation, which aims at limiting the emission of deleterious substances from exhaust fumes, which are emitted to the environment. Moreover, the article presents the results of author's own stand tests for an engine equipped with an innovative programmable exhaust gas recirculation valve (EGR valve).
Źródło:: Inżynieria Rolnicza; 2011, R. 15, nr 5, 5; 73-80
1429-7264
Pojawia się w:: Inżynieria Rolnicza
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: "Off Road" vehicles in the aspect of future emission exhaust quality standards
Autorzy:: Jantos, J.
Mamala, J.
Bieniek, A.
Kowalski, D.
Graba, M.
Powiązania:: https://bibliotekanauki.pl/articles/245720.pdf
Data publikacji:: 2009
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: injection pump
pollutant emission
electric valves
transport
off-road
Opis:: Current engine technology for on-road vehicles allows us to meet the existing and planned future standards for emission. Because combustion engines, especially self-igniting are being used for very different purposes like: road transport, rail-way transport, shipping, industry, military and agriculture, these engines work in different and often difficult conditions. A very significant group of vehicles used for the most difficult of the a forementioned areas ofuse are "Off-Road" vehicles. For those vehicles we also use rigorous regulations to govern dangerous chemical emissions such as Tier, Bin and Californian LEV. In those types of vehicles the fuel powered systems very often use mechanically controlled diesel injection pump. These pumps are characterized by high tolerance to the quality and type ofpetrol as well as reliability, which is very important especially in "off-road" vehicles. At work a conception was described of system of powering the engine diesel which will let for reaching of future emission exhaust quality standards. In the paper only initial outline of the idea of the injection 's system for „off-road" vehicles, is introduced. This system needs follow-on in the field both interactions with the EGR valve, with the injection 's system as well as in the matter of interaction with ECU of the injection 's system.
Źródło:: Journal of KONES; 2009, 16, 4; 201-206
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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