Particulate emissions in an engine fueled with biodiesel/Diesel blends at different fuel injection system configurations

Abstract

The present study aimed to evaluate the particulate emissions in a Diesel engine with an electronic injection system using different biodiesel blends and variations in the fuel injection point and volume, comparing it with the MAR-1 standard. The particulate emissions are analyzed using a two-factor (12×8) completely randomized design that resulted from the interaction of three biodiesel/Diesel blends, two injection point configurations, two fuel injection volumes and eight crankshaft speeds, with 30 repetitions. According to the results, the particulate emissions meet the requirements established by the MAR-I standard when the engine operates at the original factory settings, fueled with blends containing up to 30% of biodiesel. With the engine angular speed at maximum torque (1,500 rpm), the injection point advanced and the increase in fuel volume, the particulate emissions increased by 115% and 314% for the 10 and 30% biodiesel blends, respectively, regarding the engine operating with the original settings.

EVALUATION OF OILSEED RADISH ( Raphanus sativus L. var. oleiformis Pers.) OIL AS A POTENTIAL COMPONENT OF BIOFUELS

“…The obtained results confirmed the suitability of oil from oilseed radish for thermodynamic combustion processes in regulated pressure and temperature systems. Such results are consistent with the data of Chammoun et al (2013), Ratanapariyanuch et al (2013), Faria et al (2018, Brauna et al (2020), Sala et al (2022) and Tavares et al (2022).…”

“…A number of crops are grown specifically for biofuel production and are known as energy crops. These vary according to geography: for example, corn, soybeans, willows and switchgrass are common energy crops in the United States; rapeseed, wheat, sugar beet and willows are preferentially grown in northern Europe; sugarcane is grown in Brazil; palm oil and Miscanthus giganteus are grown in Southeast Asia; and sorghum and cassava are grown in China (Anand & Khanna, 2019;Lacerda et al, 2020;Sala et al, 2022). Brazil is one of the world leaders in the production of biofuels from plant oils.…”

Performance of a diesel engine using different biodiesel blends and injection configurations

“…In addition, the fuel volume to be injected at each stroke is dependent on the common rail pressure and injection nozzle opening time, which are also controlled by the ECU (Sala et al, 2022). It also varies according to the rotation, and fuel characteristics (Gutierrez & Sala, 2015).…”