Experimental analysis of biofuel as an alternative fuel for diesel engines

Abstract

International audienceThe growth of energy demand and limited fossil fuel resources lead to renewable energy development such as vegetable oils and animal fats or their derivatives. In the present work, the valuation of waste fish fat by the pyrolysis technique with the presence of catalyst to produce biofuel for diesel engines. As a result, fuel undergoes good combustion and hence there is a significant improvement in performance and reduction in emissions. The brake thermal efficiency of neat biofuel is 32.4% at 80% load which is very high compared to neat diesel (29.98%). The combustion duration and ignition delay are decreased with neat biofuel due to high oxygen content and high cetane number of biofuel. The main problem with the use of neat biofuel in diesel engine is high NOx emissions at all loads. Addition of diesel with biofuel reduces the NOx emissions significantly from 917 ppm to 889 ppm at 80% load with an optimum blend of B80D20. There is a slight decrease in brake thermal efficiency and increase in particulate emission with this blend. The overall results show that by adding small quantity of diesel with biofuel decreases the NOx emissions significantly and approaches the performance of neat biofuel. (c) 2012 Elsevier Ltd. All rights reserved

A review on conversion techniques of liquid fuel from waste plastic materials

“…At lower load, BTE with blended diesel (diesel with de‐inking sludge pyrolysis oil) was found 4% higher than diesel, but it is closer at full loads . The higher BTE of fish pyrolysis oil on a single‐cylinder air‐cooled diesel engine was more reported than diesel (32.4% with fish pyrolysis oil, 29.98% with diesel) because of higher oxygen concentration with fish oil . It was found that BTE was increased with pine oil injection at full loads with better evaporation and atomization as the pine oil was dispersed with preheated air at 150 °C in an inlet manifold .…”

Evaluación de Mezclas Ternarias de Petrodiésel, Biodiésel de Palma y Oleorresina de Copaiba en una Planta Eléctrica

“…8). Este resultado puede ser atribuido al aumento de la cantidad de oxígeno disponible para la combustión con la adición de OCR al diésel, lo cual favoreció el proceso de oxidación en la cámara de combustión y redujo las emisiones de CO en los gases de escape (Yadav et al, 2016;Chuah et al, 2015;Varuvel et al, 2012).Resultados similares a los reportados por Cheikh et al (2016), quienes establecieron que, a altas velocidades y cargas máximas, se generó una disminución de 8,2% en las emisiones de CO de mezclas de biodiésel de cocina usado/ diésel al 50% vol., en comparación con el combustible diésel de referencia, la cual atribuyen al aumento en la concentración de oxígeno en el combustible y la temperatura de combustión en la cámara. Así mismo, Abedin et al (2016) reportan que el incremento en el contenido de oxígeno en mezclas de biodiésel de palma/ diésel y b de laurel de Alejandría (20 %vol.)…”

Production, Performance and Emission Analysis of Tamanu Oil Diesel Blends along with Biogas in a Diesel Engine in Dual Cycle Mode

“…Random error can only be predictable statistically and cannot be predicted in advance. Its presence can be detected only when the same parameter is measured again and again under the similar conditions and with the proper attention (Varuvel et al, 2012). The magnitude of the error can be found by the principle of root sum-square method.…”