Investigation on combustion characteristics of crude rice bran oil methyl ester blend as a heavy duty automotive engine fuel

2011 ◽  
Vol 4 (3) ◽  
pp. 282 ◽  
Author(s):  
S. Saravanan ◽  
G. Nagarajan ◽  
S. Sampath
Keyword(s):  
Methyl Ester ◽  
Rice Bran ◽  
Rice Bran Oil ◽  
Combustion Characteristics ◽  
Engine Fuel ◽  
Heavy Duty ◽  
Automotive Engine

Combustion characteristics of a stationary diesel engine fuelled with a blend of crude rice bran oil methyl ester and diesel

Energy ◽  
2010 ◽  
Vol 35 (1) ◽  
pp. 94-100 ◽  
Author(s):  
S. Saravanan ◽  
G. Nagarajan ◽  
G. Lakshmi Narayana Rao ◽  
S. Sampath
Keyword(s):  
Diesel Engine ◽  
Methyl Ester ◽  
Rice Bran ◽  
Rice Bran Oil ◽  
Combustion Characteristics

Effect of blending crude rice bran oil methyl ester with diesel on properties as CI engine fuel

2009 ◽  
Vol 82 (4) ◽  
pp. 244-246 ◽  
Author(s):  
S. Saravanan ◽  
G. Nagarajan ◽  
G. Lakshmi Narayana Rao
Keyword(s):  
Methyl Ester ◽  
Rice Bran ◽  
Rice Bran Oil ◽  
Engine Fuel ◽  
Ci Engine

scholarly journals Combustion and emission characteristics of diesel engine fuelled with rice bran oil methyl ester and its diesel blends

2008 ◽  
Vol 12 (1) ◽  
pp. 139-150 ◽  
Author(s):  
Rao Gattamaneni ◽  
Saravanan Subramani ◽  
Sampath Santhanam ◽  
Rajagopal Kuderu
Keyword(s):  
Diesel Engine ◽  
Methyl Ester ◽  
Heat Release ◽  
Vegetable Oils ◽  
Rice Bran ◽  
Ignition Delay ◽  
Rice Bran Oil ◽  
Direct Injection ◽  
Engine Fuel ◽  
Maximum Heat

There has been a worldwide interest in searching for alternatives to petroleum-derived fuels due to their depletion as well as due to the concern for the environment. Vegetable oils have capability to solve this problem because they are renewable and lead to reduction in environmental pollution. The direct use of vegetable oils as a diesel engine fuel is possible but not preferable because of their extremely higher viscosity, strong tendency to polymerize and bad cold start properties. On the other hand, Biodiesels, which are derived from vegetable oils, have been recently recognized as a potential alternative to diesel oil. This study deals with the analysis of rice bran oil methyl ester (RBME) as a diesel fuel. RBME is derived through the transesterification process, in which the rice bran oil reacts with methanol in the presence of KOH. The properties of RBME thus obtained are comparable with ASTM biodiesel standards. Tests are conducted on a 4.4 kW, single-cylinder, naturally aspirated, direct-injection air-cooled stationary diesel engine to evaluate the feasibility of RBME and its diesel blends as alternate fuels. The ignition delay and peak heat release for RBME and its diesel blends are found to be lower than that of diesel and the ignition delay decreases with increase in RBME in the blend. Maximum heat release is found to occur earlier for RBME and its diesel blends than diesel. As the amount of RBME in the blend increases the HC, CO, and soot concentrations in the exhaust decreased when compared to mineral diesel. The NOx emissions of the RBME and its diesel blends are noted to be slightly higher than that of diesel.

Synthesis of Methyl Ester from Rice Bran Oil through the Esterification Reaction

2020 ◽  
Vol 851 ◽  
pp. 164-171 ◽  
Author(s):  
Aman Santoso ◽  
Abdurrohman ◽  
Anugrah Ricky Wijaya ◽  
Dedek Sukarianingsih ◽  
Sumari ◽  
...  
Keyword(s):  
Refractive Index ◽  
Methyl Ester ◽  
Vegetable Oil ◽  
Rice Bran ◽  
Rice Bran Oil ◽  
Methyl Esters ◽  
Acid Number ◽  
Esterification Reaction

Vegetable oil is one of rice bran components. As triglycerides, vegetable oil can be converted to fatty acid and alkyl esters for further treatments. Synthesis of alkyl ester oil can be carried out by esterification or transesterification reaction, depending on the quality of the oil and the catalyst. The purposes of this study are 1) Rice bran oil isolation, 2) Oil esterification 3) Characterization and identification of the methyl ester that compose rice bran oil. The stages in this research are 1) Extraction of rice bran oil, 2) Synthesis of methyl ester from rice bran through esterification reaction, 3) Methyl ester characterization of rice bran oil and its potential test as biodiesel included determination of density, viscosity, refractive index, and acid number test, 4) The identification of synthesized methyl esters composition using GC-MS. The results showed that rice bran oil has a yield of 18.09%. Synthesis of methyl esters from rice bran oil through the esterification reaction with a catalyst acid yields 72.37%. The characters of the synthesized methyl ester are on the range of biodiesel quality standards, namely, the density is 0.850 g/mL, viscosity is 4.73 cSt, a refractive index is 1.45871, and an acid number is 0.76 g KOH/g methyl ester, therefore it is claimed that the synthesized methyl esters have the potential as biodiesel. The GC-MS result showed the presence of compounds methyl tetradecanoate (0.38%), methyl hexadecanoate (40.67%), methyl 9-octadecenoate (53.68%), methyl octadecanoate (5.02%), and methyl eicosanoate (0.14%).

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