Title: The investigation of exergoeconomic, sustainability and environmental analyses in an SI engine fuelled with different ethanol-gasoline blends

Authors: Battal Doğan; Derviş Erol; Evren Kodanlı

Addresses: Department of Motor Vehicles and Transport Technologies, Gazi University, Ankara, 06980, Turkey ' Department of Automotive Technology, Kırıkkale University, Kırıkkale, 71450, Turkey ' Department of Mechanical Engineering, Faculty of Engineering, Kırıkkale University, Kırıkkale, 71450, Turkey

Abstract: In this study, performance and emission values were obtained under full load by using ethanol-gasoline blends as a fuel at different rates in a spark-ignition engine, and exergy, exergoeconomic and environmental analyses were performed with these values. Exergy of a fuel entering engine and lost exergies through cooling system, exhaust and radiation were calculated. CO, CO₂, HC, and NO_X emissions released from engine into environment were measured, and according to environmental analysis, cost of CO₂ emission was calculated as 393.78 USD/year for E0 fuel and as 306.78 USD/year for E30 fuel at 2,000 rpm. Ethanol-gasoline blends at different rates, environmental damage can be reduced by around 30% on an annual basis. Furthermore, with environmental analysis, lowest engine output power cost was found to be 29.77 USD/MJ in E0 fuel at 2,000 rpm, while highest engine output power cost was found to be 120 USD/MJ in E30 fuel at 4,500 rpm.

Keywords: spark-ignition engine; ethanol; exergy; exergoeconomic; environmental; sustainability index.

DOI: 10.1504/IJEX.2020.108949

International Journal of Exergy, 2020 Vol.32 No.4, pp.412 - 436

Received: 21 Oct 2019
Accepted: 11 Feb 2020
Published online: 10 Aug 2020 *

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