Performance and emission characterization of a common-rail compression-ignition engine fuelled with ternary mixtures of rapeseed oil, pyrolytic oil and diesel

RENEWABLE ENERGY

卷:148

Article

Mikulski, Maciej¹  Ambrosewicz-Walacik, Marta²  Duda, Kamil²  Hunicz, Jacek³ 

[1] Univ Vaasa, Energy Technol, Sch Technol & Innovat, Wolffintie 34, FI-65200 Vaasa, Finland

[2] Univ Warmia & Mazury, Fac Tech Sci, Stoneczna 46A, PL-10710 Olsztyn, Poland

[3] Lublin Univ Technol, Fac Mech Engn, Nadbystrzycka 36, PL-20618 Lublin, Poland

关键词: Diesel engine;    Rapeseed oil;    Pyrolytic oil;    Waste tyres;    Efficiency analysis;    Exhaust emissions;   

DOI  :  10.1016/j.renene.2019.10.161

来源: Elsevier

【 摘 要 】

Biofuels are one of the short-term alternatives for reducing the well-to-wheel greenhouse gas footprint of transport. In the framework of compression-ignition engine fuels. This study investigates the feasibility of using cold-pressed rapeseed oil as a biocomponent, admixed with distilled tyre pyrolytic oil, as an energy-efficient alternative to commonly considered methyl ester-based mixtures in diesel fuel. Selected ternary and binary fuel blends are subjected to engine tests. Their scope covers 80% of the engine map and aims at identifying tradeoffs between fuel composition, engine performance and emissions. The results show that fuel mixtures containing a large fraction of rapeseed oil (up to 55% by volume) can be effectively combusted when pyrolytic oil distillate is introduced as the additive. The deterioration in brake efficiency for such fuel does not exceed 1.2% with respect to diesel baseline. At the same time, the results are superior in terms of both efficiency and emissions when compared to FAME-based biodiesel. Finally, with indicated efficiencies on a similar level as the diesel baseline, suggesting improved burning rate with pyrolytic oil addition, the study identifies parasitic losses in fuel injection equipment as a significant contributor to the overall efficiency penalty for the examined ternary mixtures. (C) 2019 Elsevier Ltd. All rights reserved.

【 授权许可】

Free