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Your search keyword '"Abdullah, Zuhaira"' showing total 2 results
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2 results on '"Abdullah, Zuhaira"'

1. A Comparative Analysis on Emissions of Some Next Generation Long-Chain Alcohol/Diesel Blends In a Direct-Injection Diesel Engine.

Author

Zurina, H., Adam, A., Anes, G. M., Abdullah, Zuhaira, Fahmi, M., Kamal, M., and Hagos, F. Y.

Subjects
*DIESEL motor combustion, *DIESEL motor exhaust gas, *ALCOHOL as fuel, *HEXANOLS, *CARBON monoxide
Abstract

In this experimental study, the effect of using long-chain alcohols (pentanol and 2-ethyl 1-hexanol) on the emissions were studied and discussed, by comparing the emissions results with diesel fuel. 10% pentanol and 10% 2-ethyl 1-hexanol were separately added into 90% diesel fuel which namely as PE10 and HE10, respectively. The tests were performed at full-throttle valve opening and constant engine speed of 1800rpm. The exhaust emissions of diesel engine fuelled with DF, PE10 and HE10 were studied under varies engine loads (0%, 25%, 50%, 75% and 100%). The results showed that the use of alcohols fuels affects carbon monoxide (CO) emission to increase as well as hydrocarbon (HC). In addition, decreased nitrogen oxides (NOx) and carbon dioxide (CO2) were observed. Moreover, it is noted that 2-ethyl 1-hexanol is a better additive than pentanol due to lower CO, HC and NOx measured in HE10. [ABSTRACT FROM AUTHOR]

Published
2019
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2. Analysis of combustion characteristics, engine performances and emissions of long-chain alcohol-diesel fuel blends.

Author

Suhaimi, Hazrulzurina, Adam, Abdullah, Mrwan, Anes G., Abdullah, Zuhaira, Othman, Mohd. Fahmi, Kamaruzzaman, Mohd. Kamal, and Hagos, Ftwi Yohaness

Subjects
*COMBUSTION, *DIESEL fuels, *DIESEL motor exhaust gas, *ENERGY security, *HYDROCARBONS, *MISCIBILITY
Abstract

Petroleum-based fuels have been one of the most in demand energy source for various purposes and application. However, rigorous emissions from petroleum-based fuels have forced many governments to introduce stringent regulations and concerns over energy security. Alternative fuel such as short-chain alcohol (methanol and ethanol) had been used as an oxygenated element to increase oxygen content in diesel fuel (DF). However, short-chain alcohol-diesel blends have disadvantages such as low cetane number, low heating value, increase of hydrocarbons (HC) and low miscibility with DF. Recently, researchers have shown interest on long-chain alcohols which have better physicochemical properties than short-chain alcohol. In this experiment, 5%, 10% and 20% of 2-ethyl 1-hexanol (2-EH) was added into DF to produce long-chain alcohol-diesel fuel blends. The fuel blends were prepared by using Hielscher UP400S ultrasonic emulsifier machine at 20% Hz stirring speed. The discussion will focus on combustion characteristics, engine performance and exhaust emissions of single cylinder diesel engine YANMAR TF120M at constant engine speed of 1800 rpm under various loads (0%, 25%, 50%, 75%, and 100%). The results show that HE5 has the preeminent properties among fuel blends in terms of calorific value (45.87 MJ/kg), density (806.1 kg/m 3 ) and viscosity (3.02 mPa·s). Performance analysis shows BTE had increased by 91.72%, while BSFC had decreased by 45.22% for 5% 2-EH (HE5). [ABSTRACT FROM AUTHOR]

Published
2018
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