Castor oil, a source for biodiesel production and its impact on the diesel engine performance

2019 ◽  
Vol 28 ◽  
pp. 1-10 ◽  
Author(s):  
Sadegh Azizzadeh Hajlari ◽  
Bahman Najafi ◽  
Sina Faizollahzadeh Ardabili
2014 ◽  
Vol 31 (2) ◽  
pp. 90 ◽  
Author(s):  
S Ismail ◽  
S. A Abu ◽  
R Rezaur ◽  
H Sinin

In this study, the optimum biodiesel conversion from crude castor oil to castor biodiesel (CB) through transesterification method was investigated. The base catalyzed transesterification under different reactant proportion such as the molar ratio of alcohol to oil and mass ratio of catalyst to oil was studied for optimum production of castor biodiesel. The optimum condition for base catalyzed transesterification of castor oil was determined to be 1:4.5 of oil to methanol ratio and 0.005:1 of potassium hydroxide to oil ratio. The fuel properties of the produced CB such as the calorific value, flash point and density were analyzed and compared to conventional diesel. Diesel engine performance and emission test on different CB blends proved that CB was suitable to be used as diesel blends. CB was also proved to have lower emission compared to conventional diesel.


Energy ◽  
2018 ◽  
Vol 157 ◽  
pp. 843-852 ◽  
Author(s):  
Omar Aboelazayem ◽  
Nour Sh. El-Gendy ◽  
Ahmed A. Abdel-Rehim ◽  
Fatma Ashour ◽  
Mohamed A. Sadek

2015 ◽  
Vol 773-774 ◽  
pp. 425-429 ◽  
Author(s):  
Nur Atiqah Ramlan ◽  
Abdul Adam Abdullah ◽  
Mohd Herzwan Hamzah ◽  
Nur Fauziah Jaharudin ◽  
Rizalman Mamat

The depletion of fossil fuels as well as the rises of greenhouse gases had caused most government worldwide to follow the international energy policies for the use of biodiesel. One of the economical sources for biodiesel production is waste cooking oil. The use of waste cooking oil is more sustainable if they can perform similarly to conventional diesel fuel. This paper deals with the experimental study carried out to evaluate the engine performance and exhaust emission of diesel engine operated by biodiesel from waste cooking oil at various engine speed. The biodiesel used are known as B5, which contains of 5% of waste cooking oil and 95% of diesel fuel. The other one is B20, which contains of 20% of waste cooking oil plus 80% of diesel. Diesel was used as a comparison purposes. The results show that power and torque for B5 give the closest trend to diesel. In terms of heat release, diesel still dominates the highest value compared to B5 and B20. For exhaust emission, B5 and B20 showed improvement in the reduction of NOx and PM.


2014 ◽  
Vol 34 (4) ◽  
pp. 1166-1173 ◽  
Author(s):  
Subramaniapillai Niju ◽  
Muhammed Niyas ◽  
Kader Mohamed Meera Sheriffa Begum ◽  
Narayanan Anantharaman

Processes ◽  
2020 ◽  
Vol 8 (9) ◽  
pp. 1141
Author(s):  
Yew Heng Teoh ◽  
Heoy Geok How ◽  
Thanh Danh Le ◽  
Huu Tho Nguyen

A two-step transesterification process was employed in the biodiesel production from non-edible Alexandrian Laurel. The key physicochemical properties of the Alexandrian Laurel biodiesel (ALB), diesel and blends of both fuels were compared and analyzed. The effects of blending biodiesel (ALB) and petroleum diesel on engine performance, combustion and exhaust emissions were investigated in a turbocharged, high-pressure common-rail diesel engine under six different speed operations and at full load conditions. The test fuels comprised a conventional diesel fuel and four different fuel blends of ALB. The results showed relatively close physicochemical properties of ALB and its blends when compared with petroleum diesel. However, the use of ALB-blended fuel resulted in penalties engine brake power, brake specific fuel consumption (BSFC) despite slightly improved brake thermal efficiency (BTE). Brake specific nitrogen oxide (BSNOx) was found worsened with higher ALB content in the blends. Nonetheless, consistent improvements in brake specific carbon monoxide (BSCO), brake specific carbon dioxide (BSCO2), and smoke were noticed when ALB blends were used. Additionally, ALB blends contributed to reduction in peak combustion pressure, peak heat release rate (HRR) and combustion duration. In general, the findings suggest satisfactory operation with ALB biodiesel-diesel blends in an unmodified diesel engine.


2019 ◽  
Vol 8 (3) ◽  
pp. 5527-5530

Depletion of fossil fuel reserves and stringent pollution norms has created a need for search alternate source that can fuel internal combustion engine. The fuels obtained from green matter has got great potential to replace conventional fossil fuels to power internal combustion engine (ICE). But the performance of the ICE are influenced by many parameters such as injector opening pressure, injection timing, and combustion chamber profile. Current work deals with evaluation of engine performance, combustion characteristics of direction injection diesel engine fitted with re-entrant toroidal (RET) combustion chamber equipped with six hole nozzle fueled with castor oil methyl esters (CAOME) and ethanol blends. The peak value of break thermal efficiency (BTE) is found to be 26.34% at 75% load for a blend 80D+5B+15E with minimum emissions and with combustion duration and ignition delay in comparison with diesel


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