Abstract
<p class="02abstracttext">Depleting oil reserves has encouraged many researchers to search for new energy resources. Of many alternatives, soybean oil has been proposed as biodiesel. In this study, influence of mixture composition of soybean oil and diesel fuel on the droplet combustion characteristics was investigated. These characteristics included Ignition delay time, fire visualization, flame temperature and burning rate. The mixture comprises 10 to 50% soybean oil while the rest are Pertamina Dex diesel fuel. The study shows that flash point temperature, ignition delay time and burning rate increase as soybean oil content increases. In contrary, the flame height decreases with increasing soybean oil content.</p>
Highlights
Depleting oil reserves and increasing fossil fuel demand since the past few years have encouraged many industries, governments, and researchers to search for new alternative energy
This study investigates the combustion characteristics of an engine fueled with a mixture of soybean oil and biodiesel
The lowest flash point at 44.2 oC occurred for soybean oil content of 10 % while the highest flash point at 66.3 oC occurred for soybean oil content of 50%
Summary
Depleting oil reserves and increasing fossil fuel demand since the past few years have encouraged many industries, governments, and researchers to search for new alternative energy. Like other biodiesel produced through by transesterification process, soybean fuel is structured by mono-alkyl esters of higher fatty acids [8]. To increase the efficiency of soybean oil transformation into biodiesel, high quality soybean oil is beneficial since it does not require any additional process to decrease free fatty acids prior to transesterification process [9]. Much attention has been dedicated to investigating the biodiesel use as an alternative fuel for combustion in an engine. Study on combustion characteristics of an engine fueled with the mixture of soybean oil and diesel is important. Flame temperature is the highest temperature by assuming adiabatic condition This property is important to investigate maximum heat energy can be produced during combustion. Combustion commences when flash point temperature is achieved [13]
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