scholarly journals Evaluation of the efficiency of the three-way catalytic converter of a spark ignition engine of the chosen aromatic hydrocarbons removing

2017 ◽  
Vol 169 (2) ◽  
pp. 83-86
Author(s):  
Maria SKRĘTOWICZ ◽  
Joanna WOŹNIAK ◽  
Radosław WRÓBEL
Keyword(s):  
Aromatic Hydrocarbons ◽  
Rotational Speed ◽  
High Efficiency ◽  
Catalytic Converter ◽  
Spark Ignition ◽  
Spark Ignition Engine ◽  
Catalytic Reactor ◽  
Exhaust Gases ◽  
Before And After ◽  
Benzene Toluene

In the paper the results of measurement of the most popular aromatic hydrocarbons (benzene, toluene and xylenes) in the exhaust of spark ignition engine before and after three-way catalytic reactor were presented. The investigations have been conducted at fixed rotational speed, 2500 rpm and at a few different values of torque in range 0 – 80 Nm, every 10 Nm. Based on obtained results, the calculations of catalytic reactor efficiency in removing analysed components have been made. The measurements showed high efficiency of the catalytic converter in reduction of that pollutants in exhaust gases.

EMISSION OF POLYCYCLIC AROMATIC HYDROCARBONS CONTAINED IN COMBUSTION PRODUCTS OF GASOLINE ENGINES

2018 ◽  
Vol 62 (3) ◽  
pp. 341-346 ◽  
Author(s):  
M. Assad ◽  
V. V. Grushevski ◽  
O. G. Penyazkov ◽  
I. N. Tarasenko
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
High Speed ◽  
Internal Combustion Engines ◽  
Catalytic Converter ◽  
Combustion Products ◽  
Chromatography Method ◽  
Exhaust Gases ◽  
Polycyclic Aromatic ◽  
Load Mode

The concentration of 16 polycyclic aromatic hydrocarbons (PAHs) in the gasoline combustion products emitted into the atmosphere by internal combustion engines (ICE) has been measured using the gas chromatography method. The concentrations of PAHs in the exhaust gases sampled behind a catalytic converter has been determined when the ICE operates in five modes: idle mode, high speed mode, load mode, ICE cold start mode (engine warm-up) and transient mode. Using 92 RON, 95 RON and 98 RON gasoline the effect of the octane number of gasoline on the PAHs content in the exhaust gases has been revealed. The concentration of the most carcinogenic component (benzo(α)pyrene) in the exhaust gases behind a catalytic converter significantly exceeds a reference value of benzo(α)pyrene in the atmospheric air established by the WHO and the EU for ICE in the load mode.

scholarly journals A 4-stroke spark-ignition engine fuelled with low quality gas

2017 ◽  
Vol 168 (1) ◽  
pp. 122-124
Author(s):  
Marek BRZEŻAŃSKI ◽  
Michał MARECZEK ◽  
Marek SUTKOWSKI ◽  
Wojciech SMUGA
Keyword(s):  
Power Generation ◽  
Power Systems ◽  
High Efficiency ◽  
High Reliability ◽  
Calorific Value ◽  
Spark Ignition ◽  
Spark Ignition Engine ◽  
University Of Technology ◽  
Product Gas ◽  
Methane Number

Huge amount of by-products is still considered as waste and is simply disposed, for example by-product gas is usually flared. Political and social pressure to reduce air pollution and national needs for energy security make these waste fuels interesting for near-future power generation. Unfortunately most of these waste fuels, even when liquefied or gasified, have very low quality and can hardly be used in high-efficiency power systems. Among main challenges are low calorific value and composition fluctuation. Additionally very often there is a high content of sulphur, siloxanes, tars, etc., which have to be removed from the fuel. Modern 4-stroke gas engines designed for power generation applications provide very high efficiency, high reliability and availability. Unfortunately, these gas engines require high quality fuel with stable composition. Horus-Energia together with Cracow University of Technology developed a novel gas supply system HE-MUZG that can adapt to current gas quality and change engine settings accordingly.This article will present results from the HE-MUZG system tests on modern 4-stroke spark-ignition gas engine. Tests focus on low quality gas, such as gas with low calorific value, gas with very low methane number and gas with very big variations of calorific value. Test results compared with performance of that engine in the original configuration show huge improvements. Moreover the HE- MUZG system is easy to implement in commercial gensets.

Ethane kinetics in spark-ignition engine-exhaust gases

1971 ◽  
Vol 13 (1) ◽  
pp. 451-459 ◽  
Author(s):  
S.C. Sorenson ◽  
P.S. Myers ◽  
O.A. Uyehara
Keyword(s):  
Spark Ignition ◽  
Spark Ignition Engine ◽  
Engine Exhaust ◽  
Exhaust Gases

scholarly journals Issues related to adjustment of a spark ignition engine with exhaust gas recirculation

2004 ◽  
Vol 119 (2) ◽  
pp. 12-22
Author(s):  
Dariusz PIETRAS ◽  
Maciej SOBIESZCZAŃSKI
Keyword(s):  
Engine Performance ◽  
Exhaust Gas Recirculation ◽  
Spark Ignition ◽  
Negative Influence ◽  
Spark Ignition Engine ◽  
Control Algorithms ◽  
Exhaust Gas ◽  
Exhaust Gases ◽  
Vehicle Engine ◽  
Gas Recirculation

The article presents results of a spark ignition engine examination, which has been conducted to establish the influence of exhaust gases recirculation on the engine performance and the toxic content in exhaust gases. The research concentrated on identifying a range of recirculation levels, which enabled to eliminate its negative influence on the engine performance by means of selecting an appropriate angle of advance. Further, the article discusses the engine examination procedures involving different recirculation control algorithms in the ECM chip. Finally, the article presents EURO II and EURO III tests, conducted on a vehicle/engine controlled by the above-mentioned software.

scholarly journals Estimation of operational parameters for a direct injection turbocharged spark ignition engine by using regression analysis and artificial neural network

2017 ◽  
Vol 21 (1 Part B) ◽  
pp. 401-412 ◽  
Author(s):  
Erdi Tosun ◽  
Kadir Aydin ◽  
Simona Merola ◽  
Adrian Irimescu
Keyword(s):  
Neural Network ◽  
Artificial Neural Network ◽  
Regression Analysis ◽  
Catalytic Converter ◽  
Direct Injection ◽  
Spark Ignition ◽  
Spark Ignition Engine ◽  
Back Propagation Algorithm ◽  
Brake Mean Effective Pressure ◽  
Artificial Neural

This study was aimed at estimating the variation of several engine control parameters within the rotational speed-load map, using regression analysis and artificial neural network techniques. Duration of injection, specific fuel consumption, exhaust gas at turbine inlet, and within the catalytic converter brick were chosen as the output parameters for the models, while engine speed and brake mean effective pressure were selected as independent variables for prediction. Measurements were performed on a turbocharged direct injection spark ignition engine fueled with gasoline. A three-layer feed-forward structure and back-propagation algorithm was used for training the artificial neural network. It was concluded that this technique is capable of predicting engine parameters with better accuracy than linear and non-linear regression techniques.

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