TY  - JOUR
AV  - none
N2  - Micro-explosions during the combustion of palm oil water-in-biodiesel emulsified fuel caused simultaneous reduction in both NOx and smoke from the diesel engine exhaust.The existence of water particles in the palm oil biodiesel emulsified fuel cause micro-explosions due to the difference in volatilities and boiling temperatures of the water and biodiesel as the water particles reached their superheated limit first before the biodiesel.In addition, water lowers the adiabatic flame temperature and therefore acts as a heat sink during the combustion process.Ascertaining the occurrences of micro-explosion in the combustion chamber by direct visualisation is a difficult task, however, it can be made possible by observing the trends of the combustion phases.The secondary atomisation caused by the micro-explosion can be depicted on the combustion characteristics curve by determining the heat release rate of combustion.This study aimed to ascertain the occurrences of micro-explosion and reduction in flame temperature by analysing the combustion phases of water-in-palm oil biodiesel in a diesel engine with different blends of emulsified fuels.Emulsified biodiesel fuels with 11 and 13 water by volume blended with palm oil biodiesel were used as fuel in an unmodified single-cylinder direct injection engine at 0, 25, 50, 75 and 100 loads while maintaining the engine speeds at 2000 rpm.WiBE 8-8-13 shows the highest peak for both in-cylinder pressure and heat release rate with 3.87 and 23.51 increase respectively, as compared to B10 fuel at high load condition.The emission characteristics recorded by WiBE 8-8-11 shows lowest emission of NOx by 52.83 but increase the percentage of CO by 43.75 compare B10 fuel. © 2023, Institute of Technology PETRONAS Sdn Bhd.
N1  - cited By 0; Conference of 7th International Conference on Production, Energy and Reliability, ICPER 2020 ; Conference Date: 14 July 2020 Through 16 July 2020; Conference Code:284729
TI  - Examining Combustion Characteristics of Water-In-Palm Oil Biodiesel Emulsified Fuels for Micro-Explosion
SP  - 107
ID  - scholars19505
KW  - Diesel engines; Direct injection; Emulsification; Engine cylinders; Gasoline; Nitrogen oxides; Palm oil; Smoke
KW  -  Combustion characteristics; Diesel engine exhaust; Emulsified fuel; Heat release; Micro explosion; Oil/water; Palm oil biodiesels; Release rate; Simultaneous reduction; Water particles
KW  -  Biodiesel
Y1  - 2023///
JF  - Lecture Notes in Mechanical Engineering
A1  - Amran, N.H.
A1  - Abdul Karim, Z.A.
A1  - Martang, M.N.I.
A1  - Dalha, I.B.
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85140738817&doi=10.1007%2f978-981-19-1939-8_10&partnerID=40&md5=8b5e77bdda9f133c063abd445739a0df
EP  - 121
ER  -