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Experimental characterisation of a diesel engine running on polypropylene oils produced at different pyrolysis temperatures

Kalargaris, Ioannis, Tian, Guohong and Gu, Sai (2017) Experimental characterisation of a diesel engine running on polypropylene oils produced at different pyrolysis temperatures FUEL.

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Abstract

Polypropylene is the most common type of plastic found in municipal solid waste. The production of polypropylene is expected to increase due to the widespread utilization in daily life, resulting in even higher amounts of polypropylene waste. Sending this plastic to landfill not only exacerbates environmental problems, but also results in energy loss due to the elevated energy content of polypropylene. Pyrolysis is a process that can e�ectively convert polypropylene waste into fuel, which can then be used to generate power and heat. In the present study, the e�ect of the pyrolysis temperature on the pyrolysis of polypropylene was investigated, and the oils produced at 700oC (PP700) and 900oC (PP900) were used to fuel a four cylinder diesel engine. The engine's combustion, performance and emission characteristics were analysed and compared to diesel operation. The results showed that both PP700 and PP900 enabled stable engine operation, with PP900 performing slightly better in terms of e�ciency and emissions. However, PP700 and PP900 were found to have longer ignition delay periods, longer combustion periods, lower brake thermal e�ciencies, higher NOX, UHC and CO emissions, and lower CO2 emissions in comparison to diesel operation. Nonetheless, the addition of a small quantity of diesel improved the overall performance of the oil blends, resulting in comparable results to diesel in the case of PP900.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Mechanical Engineering Sciences
Authors :
NameEmailORCID
Kalargaris, Ioannisi.kalargaris@surrey.ac.ukUNSPECIFIED
Tian, Guohongg.tian@surrey.ac.ukUNSPECIFIED
Gu, Saisai.gu@surrey.ac.ukUNSPECIFIED
Date : 2017
Funders : EPSRC
Uncontrolled Keywords : Diesel engine; Combustion; Emissions; Pyrolysis; Polypropylene
Depositing User : Jane Hindle
Date Deposited : 06 Oct 2017 08:47
Last Modified : 13 Oct 2017 09:54
URI: http://epubs.surrey.ac.uk/id/eprint/842486

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