NDLI: Impact of Pyrolysis Oil Addition to Ethanol on Combustion in the Internal Combustion Spark Ignition Engine

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Impact of Pyrolysis Oil Addition to Ethanol on Combustion in the Internal Combustion Spark Ignition Engine

Content Provider	MDPI
Author	Romualdas, Juknelevičius Szwaja, Magdalena Chwist, Mariusz Szwaja, Stanislaw
Copyright Year	2021
Description	Thermal processing (torrefaction, pyrolysis, and gasification), as a technology can provide environmentally friendly use of plastic waste. However, it faces a problem with respect to its by-products. Pyrolysis oil obtained using this technology is seen as a substance that is extremely harmful for living creatures and that needs to be neutralized. Due to its relatively high calorific value, it can be considered as a potential fuel for internal combustion spark-ignition engines. In order make the combustion process effective, pyrolysis oil is blended with ethanol, which is commonly used as a fuel for flexible fuel cars. This article presents results from combustion tests conducted on a single-cylinder research engine at full load working at 600 rpm at a compression ratio of 9.5:1, and an equivalence ratio of 1. The analysis showed improvements in combustion and engine performance. It was found that, due to the higher calorific value of the blend, the engine possessed a higher indicated mean effective pressure. It was also found that optimal spark timing for this ethanol-pyrolysis oil blend was improved at a crank angle of 2–3° at 600 rpm. In summary, ethanol-pyrolysis oil blends at a volumetric ratio of 3:1 (25% pyrolysis oil) can successfully substitute ethanol in spark-ignition engines, particularly for vehicles with flexible fuel type.
Ending Page	461
Page Count	12
Starting Page	450
e-ISSN	25718797
DOI	10.3390/cleantechnol3020026
Journal	Clean Technologies
Issue Number	2
Volume Number	3
Language	English
Publisher	MDPI
Publisher Date	2021-05-26
Access Restriction	Open
Subject Keyword	Clean Technologies Paper and Wood Pyrolysis Oil Ethanol Combustion Spark Ignition Engine
Content Type	Text
Resource Type	Article

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