Use of Soybean Oil like as Fuel for Diesel Cycle Engine

Márcio Turra de Ávila; Luben Cabezas-Gómez; Luben Miguel Cruz Cabezas; Simone Pereira de Souza; Dev Sagar Shrestha

doi:10.5433/1679-0375.2023.v44.48045

Use of Soybean Oil like as Fuel for Diesel Cycle Engine

Authors

Márcio Turra de Ávila Federal University of São Carlos - UFSCar https://orcid.org/0000-0002-8435-1435
Luben Cabezas-Gómez University of São Paulo – USP São Carlos https://orcid.org/0000-0002-9550-9453
Luben Miguel Cruz Cabezas Federal University of São Carlos - UFSCar https://orcid.org/0000-0001-5096-3209
Simone Pereira de Souza Campinas State University - UNICAMP https://orcid.org/0000-0002-1959-3462
Dev Sagar Shrestha University of Idaho - UI https://orcid.org/0000-0002-2156-023X

DOI:

https://doi.org/10.5433/1679-0375.2023.v44.48045

Keywords:

agribusiness, bioenergy, compression ignition engine, soybean oil

Abstract

Diesel fuel price is rapidly increasing burdening the agricultural production costs. Additionally, diesel is contributing to a significant amount of life cycle greenhouse gases emissions. Strategically, using agricultural feedstock, such as soybean oil, will reduce fossil fuel price volatility and carbon footprint from agriculture. Although cheaper than biodiesel, use of pure soybean oil has shown to damage a regular diesel engine because of its high viscosity. In this work, a novel technology was developed and tested to overcome this problem by fueling a direct injection Diesel engine with refined soybean oil (edible oil) heated by engine coolant and exhaust gases. Thermal efficiency, air/fuel ratio, fuel injection timing, exhaust temperature and exhaust emissions were evaluated. The major finding of this study was to identify the feasibility of running a modified engine properly with heated soybean oil. The results showed that soybean oil use reduces emissions of nitrogen oxides, but contributes both to lower thermal efficiency and higher emissions of other products such as carbon monoxide and particulate matter compared to fossil diesel. Despite these negative results, solutions to reduce pollutant emissions are feasible.

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Author Biographies

Márcio Turra de Ávila, Federal University of São Carlos - UFSCar

Prof. Dr., Department of Mechanical Engineering, UFSCar, São Carlos, SP, Brazil

Luben Cabezas-Gómez, University of São Paulo – USP São Carlos

Prof. Dr., Department of Mechanical Engineering, USP, São Carlos, SP, Brazil

Luben Miguel Cruz Cabezas, Federal University of São Carlos - UFSCar

PhD student, Department of Statistics, UFSCar, São Carlos, SP, Brazil

Simone Pereira de Souza, Campinas State University - UNICAMP

Dr., Department of Mechanical Engineering, UNICAMP, Campinas, SP, Brazil.

Dev Sagar Shrestha, University of Idaho - UI

Prof. Dr, Dept. of Chemical and Biological Engineering, UI, Moscow, ID, United States of America

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