Comparison of Injection Characteristics and Droplet Distribution on Crude Palm Oil and Diesel Using CFD
Abstract
CPO (Crude Palm Oil) is a potential renewable
fuel as a substitute for fossil fuels used in internal combustion
engines. An important parameter that affects the combustion of
an engine with an injection system is the characteristics of the
fuel spray. This research was conducted using Computational
Fluid Dynamics (CFD) software to model the atomization
process that occurs when CPO and diesel fuel are injected with
a pressurized atomizer. The modeling shows the characteristics
of the spray which include the shape of the spray and the droplet
diameter distribution. These characteristics are presented with
spray images, droplet diameter distribution graphs, and velocity
distribution graphs. Simulations show that at temperatures
above 75°C and 100°C, CPO spray produces droplet shapes and
distributions that are almost the same as diesel spray. On the
other hand, diesel injection spray produces a lower droplet size.
The highest droplet size distribution is at 12-16 microns.
Keywords
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DOI: http://dx.doi.org/10.32497/eksergi.v18i2.3225
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