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Preliminary tests of a Diesel engine powered by diesel and hydrogen

Longwic Rafał, Tatarynow Dawid, Kuszneruk Michał, Woźniak-Borawska Gracjana

Combustion Engines

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2023

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R. 62, nr 4

35--39

EN

This article discusses the possibilities of powering a commonly used diesel engine with renewable fuels. It analyses scientific studies that clearly indicate that the use of hydrogen is a potentially future-proof option due to its potential to reduce specific fuel consumption and improve performance and increase thermal efficiency. The research was carried out on a laboratory bench designed to test a diesel engine fueled by different fuels. A proprietary hydrogen injection system with dedicated control software was used. Hydrogen injection pressures of 0.15, 0.18, 0.20 MPa and hydrogen injector opening times of 2.5, 3.0, 3.5 ms, respectively, were set as control parameters. The rapidly varying engine operating parameters were recorded and the parameters calculated from them were analysed.

2

Ecological aspects of using mixtures of canola oil with n-hexane in diesel engine

Longwic Rafał, Sander Przemysław, Tatarynow Dawid

Combustion Engines

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2022

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R. 61, nr 3

56--60

EN

The article discusses the results of research on the use of canola oil and canola oil with the addition of n-hexane in a compression-ignition engine. An engine with a Common Rail injection system was tested in real traffic conditions on the road and on a chassis dynamometer. The tested fuels were fed to the engine by an additional fuel supply system. An analysis of the effect of the addition of n-hexane on the emission of the main components of toxic exhaust gases was carried out. The proposed solution may contribute to extending the service life of currently used compression ignition engines due to the improvement of the ecological properties of this type of drive sources.

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Analysis of the impact of damage to the injection system on the emission of toxic substances in a spark-ignition internal combustion engine

Dziubiński Mieczysław, Siemionek Ewa, Drozd Artur, Żur Paweł, Ścirka Michał, Tatarynow Dawid

Combustion Engines

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2019

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R. 58, nr 4

112--118

EN

The article presented analyses the impact of damage to the injection system on the emission of toxic subsumes in a spark-ignition internal combustion engine. The work focuses on the basic elements of the injection system, which include injectors, throttle position sensor, coolant temperature sensor and lambda sensor. In addition, a catalytic reactor has been included in the context of its direct cooperation with the injection system under set conditions. The toxicity of exhaust gases of different spark-ignition engines fueled with petrol or gas in determined operating conditions using the MAHA MGT5 exhaust gas analyser was tested. The content of toxic substances in the exhaust gases was recorded for the correct settings of the injection system and for the engine working with damage to this system. The tests carried out will allow to assess the impact of the damage of the injection system on the toxicity of exhaust gases.