Effect of Alternative Liquid Fuels on the Exhaust Particle Size Distributions of a Medium-Speed Diesel Engine

Teemu Ovaska, Seppo Niemi, Katriina Sirviö, Sonja Heikkilä, Kaj Portin and Tomas Asplund
Additional contact information
Teemu Ovaska: School of Technology and Innovations, University of Vaasa, P.O. Box 700, FI-65101 Vaasa, Finland
Seppo Niemi: School of Technology and Innovations, University of Vaasa, P.O. Box 700, FI-65101 Vaasa, Finland
Katriina Sirviö: School of Technology and Innovations, University of Vaasa, P.O. Box 700, FI-65101 Vaasa, Finland
Sonja Heikkilä: School of Technology and Innovations, University of Vaasa, P.O. Box 700, FI-65101 Vaasa, Finland
Kaj Portin: Wärtsilä Corporation, FI-65101 Vaasa, Finland
Tomas Asplund: Wärtsilä Corporation, FI-65101 Vaasa, Finland

Energies, 2019, vol. 12, issue 11, 1-14

Abstract: We mainly aimed to determine how alternative liquid fuels affect the exhaust particle size distributions (PSD) emitted by a medium-speed diesel engine. The selected alternative fuels included: circulation-origin marine gas oil (MGO), the 26/74 vol. % blend of renewable naphtha and baseline low-sulfur marine light fuel oil (LFO), and kerosene. PSDs were measured by means of an engine exhaust particle sizer from the raw exhaust of a four-cylinder, turbocharged, intercooled engine. During the measurements, the engine was loaded by an alternator, the maximum power output being set at 600 kW(e) at a speed of 1000 rpm. The partial loads of 450, 300, 150 and 60 kW(e) were also used for measurements. At each load, the PSDs had a distinct peak between 20 and 100 nm regardless of fuel. Relative to the other fuels, circulation-origin MGO emitted the lowest particle numbers at several loads despite having the highest viscosity and highest density. Compared to baseline LFO and kerosene, MGO and the blend of renewable naphtha and LFO were more beneficial in terms of total particle number (TPN). Irrespective of the load or fuel, the TPN consisted mainly of particles detected above the 23 nm size category.

Keywords: diesel engine; medium-speed; exhaust particle number; alternative fuel; renewable naphtha; circulation-origin MGO; kerosene; light fuel oil (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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