Particulate and Gaseous Emissions from a Large Two-Stroke Slow-Speed Marine Engine Equipped with Open-Loop Scrubber under Real Sailing Conditions

Grigoriadis, A. (författare): Aristotelio Panepistimio Thessalonikis,Aristotle University of Thessaloniki

Kousias, Nikolaos (författare): Aristotelio Panepistimio Thessalonikis,Aristotle University of Thessaloniki

Raptopoulos-Chatzistefanou, Anastasios (författare): Aristotelio Panepistimio Thessalonikis,Aristotle University of Thessaloniki

Salberg, Håkan (författare): IVL Svenska Miljöinstitutet AB,IVL Swedish Environmental Research Institute

Moldanova, Jana (författare): IVL Svenska Miljöinstitutet AB,IVL Swedish Environmental Research Institute

Lunde Hermansson, Anna, 1987 (författare): Chalmers tekniska högskola,Chalmers University of Technology

Cha, Yingying (författare): IVL Svenska Miljöinstitutet AB,IVL Swedish Environmental Research Institute

Kontses, Anastasios (författare): Aristotelio Panepistimio Thessalonikis,Aristotle University of Thessaloniki

Toumasatos, Zisimos (författare): Aristotelio Panepistimio Thessalonikis,Aristotle University of Thessaloniki

Mamarikas, Sokratis (författare): Aristotelio Panepistimio Thessalonikis,Aristotle University of Thessaloniki

Ntziachristos, L. (författare): Aristotelio Panepistimio Thessalonikis,Aristotle University of Thessaloniki

(creator_code:org_t)

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Abstract Ämnesord

Stäng

Particulate and gaseous emissions were studied from a large two-stroke slow-speed diesel engine equipped with an open-loop scrubber, installed on a 78,200 metric tonnes (deadweight) containership, under real operation. This paper presents the on-board emission measurements conducted upstream and downstream of the scrubber with heavy fuel oil (HFO) and ultra-low sulfur fuel oil (ULSFO). Particle emissions were examined under various dilution ratios and temperature conditions, and with two thermal treatment setups, involving a thermodenuder (TD) and a catalytic stripper (CS). Our results show a 75% SO2 reduction downstream of the scrubber with the HFO to emission-compliant levels, while the use of the ULSFO further decreased SO2 levels. The operation of the scrubber produced higher particle number levels compared to engine-out, attributed to the condensational growth of nanometer particle cores, salt and the formation of sulfuric acid particles in the smaller size range, induced by the scrubber. The use of a TD and a CS eliminates volatiles but can generate new particles when used in high-sulfur conditions. The results of this study contribute to the generally limited understanding of the particulate and gaseous emission performance of open-loop scrubbers in ships and could feed into emission and air quality models for estimating marine pollution impacts.

Av författaren/redakt...: Grigoriadis, A.; Kousias, Nikolao ...; Raptopoulos-Chat ...; Salberg, Håkan; Moldanova, Jana; Lunde Hermansson ...; visa fler...; Cha, Yingying; Kontses, Anastas ...; Toumasatos, Zisi ...; Mamarikas, Sokra ...; Ntziachristos, L ...; visa färre...

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