Estudio de desempeño y emisiones en motores diesel operando con biodiesel a partir de aceite de soja y emulsiones de agua.

Sofía Orjuela-Abril; Jhan Piero Rojas-Suárez; Jorge Eliécer Duarte-Forero

doi:10.15649/2346030X.935

Authors

Sofía Orjuela-Abril Universidad Francisco de Paula Santander - Cúcuta, Colombia https://orcid.org/0000-0002-9742-8673
Jhan Piero Rojas-Suárez Universidad Francisco de Paula Santander - Cúcuta, Colombia https://orcid.org/0000-0003-2682-9880
Jorge Eliécer Duarte-Forero Universidad del Atlántico - Barranquilla, Colombia https://orcid.org/0000-0001-7345-9590

DOI:

https://doi.org/10.15649/2346030X.935

Keywords:

Biodiesel, emission, Performance characteristics, soybean, water emulsion

Abstract

This study evaluates the influence on the combustion process, fuel consumption, and polluting emissions in a diesel engine, which operates with biodiesel from soybean oil and water emulsions with percentages of 4% and 8%. For this study, a stationary diesel engine operating at four different torque conditions and a fixed rotation speed of 3400 rpm is used. Test fuels are diesel, soybean oil biodiesel, and SB4W and SB8W water emulsions. The results indicate that SB4W and SB8W cause a 6% reduction in calorific value and an 18% and 1% increase in viscosity and density. However, the presence of water in biodiesel can help reduce engine BSFC by 8%. The SB4W and SB8W allow a 23% reduction in NOx emissions. With the use of SB4W fuel, a reduction of 16%, 29%, and 14% in CO, HC, and smoke opacity is obtained compared to soybean oil biodiesel. The maximum inclusion of 8% water in soybean oil biodiesel is recommended since a higher percentage can cause the presence of incomplete combustions.

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