Publication: Thermogravimetric and combustion efficiency analysis of Jatropha curcas biodiesel and its derivatives
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Date
2022
Authors
Atgur V.
Manavendra G.
Desai G.P.
Rao B.N.
Fattah I.M.R.
Mohamed B.A.
Sinaga N.
Masjuki H.H.
Journal Title
Journal ISSN
Volume Title
Publisher
Taylor and Francis Ltd.
Abstract
Thermal behavior of diesel, Jatropha curcas methyl ester (JOME), and its B20 blend (20% biodiesel and 80% diesel) are examined from the profiles of thermogravimetry�differential scanning calorimetry (TG-DSC) under air. TG profiles of samples indicate the mass loss steps to volatilization and combustion of methyl esters. Due to the higher temperature combustion of the intermediate stable compounds that are formed, the peak temperature of combustion is high for JOME compared to diesel and B20 blend. DSC profiles of diesel and B20 JOME indicate an endothermic peak associated with the vaporization of methyl esters for B20 JOME and the volatilization of a small fraction of the diesel. The ignition temperature for diesel and B20 blend is 128 �C, whereas JOME has an ignition temperature of 220 �C. The burnout temperatures for the diesel, JOME, and B20 blend are 283.24, 470.02, and 376.92 �C, respectively. The ignition index for the B20 blend was found to be 73.73% more compared to diesel. The combustion index for the B20 blend was found to be 37.81% higher compared to diesel. The B20 blend exhibits high enthalpy, better thermal stability, and a reduced peak temperature of combustion, with an improved combustion index and an intensity of combustion making it nearly comparable with diesel. � 2022 Informa UK Limited, trading as Taylor & Francis Group.
Description
Biodiesel; Combustion; Diesel engines; Esters; Thermogravimetric analysis; Combustion indices; Heat-flow; Ignition temperatures; Jatropha curcas; Jatropha oil; Jatropha oil methyl ester; Methyl esters; Peak temperatures; Thermal degradation'; Volatilisation; Differential scanning calorimetry