The present study aimed to understand the ignition and
combustion characteristics of a single droplet of blended fuels of Kemiri Sunan
(reutealis trisperma (Blanco) airy shaw) biodiesel and ethanol in several
levels of ambient pressure. Petroleum diesel, like fossil fuels, releases
greenhouse gases (CO2) into the atmosphere, which increases the risk to human
health and the environment as a result of global warming. Bio-oil from seeds of
Kemiri Sunan (reutealis trisperma (Blanco) airy shaw) plant is particularly
attractive to be studied since its high potential as an alternative to
biodiesel. The ambient pressures of the burning chamber were varied at 1, 3,
and 5 bars. The fuels were prepared by mixing the biodiesel with the ethanol at
concentrations of 0%, 10%, 20%, and 30% vol/vol. The single droplets of blended
fuels were suspended using a micro-syringe on the tip of the thermocouple. With
an electrical heater, it was lit and burned. A high-speed camera was used to
record the single drops' ignition and combustion processes. It was discovered
that as ambient pressure rises and the amount of ethanol in blended fuels
increases, the droplet's igniting delay decreases. Also, the burning rate of
blended droplets increased with increasing biodiesel concentration and
pressure. The maximum droplet temperature slightly increased during the
combustion with the increasing ethanol concentration, but not with increasing
ambient pressure. In the current investigation, the phenomena of micro
explosion also have been observed.
Author(s) Details:
Nurkholis Hamidi,
The Department of Mechanical Engineering, Faculty of Engineering,
Brawijaya University JL. MT. Haryono 167, Malang, Indonesia.
Purnami,
The
Department of Mechanical Engineering, Faculty of Engineering, Brawijaya University
JL. MT. Haryono 167, Malang, Indonesia.
Widya Wijayanti,
The Department of Mechanical Engineering, Faculty of Engineering,
Brawijaya University JL. MT. Haryono 167, Malang, Indonesia.
Rizal Fahmi,
The Department of Mechanical Engineering, Faculty of Engineering,
Brawijaya University JL. MT. Haryono 167, Malang, Indonesia.
Please see the link here: https://stm.bookpi.org/CAERT-V1/article/view/14158
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