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Density Of Jatropha Curcas Seed Oil And Its Methyl Esters: Measurement And Estimations, Abdul Aziz Abdul Raman
Density Of Jatropha Curcas Seed Oil And Its Methyl Esters: Measurement And Estimations, Abdul Aziz Abdul Raman
Abdul Aziz Abdul Raman
Density data as a function of temperature have been measured for Jatropha curcas seed oil, as well as biodiesel jatropha methyl esters at temperatures from above their melting points to 90 ° C. The data obtained were used to validate the method proposed by Spencer and Danner using a modified Rackett equation. The experimental and estimated density values using the modified Rackett equation gave almost identical values with average absolute percent deviations less than 0.03% for the jatropha oil and 0.04% for the jatropha methyl esters. The Janarthanan empirical equation was also employed to predict jatropha biodiesel densities. This equation …
Effects Of Ultrasound In Coating Nano‐Precipitated Caco3 With Stearic Acid, Abdul Aziz Abdul Raman
Effects Of Ultrasound In Coating Nano‐Precipitated Caco3 With Stearic Acid, Abdul Aziz Abdul Raman
Abdul Aziz Abdul Raman
Nano-Precipitated CaCO3 (NPCC) are coated with stearic acid to improve its dispersion in polymer as well as to reduce agglomeration. In this work, coating was done by wet method using ethanol. Ultrasonication was applied to NPCC to de-agglomerate micron size NPCC into smaller size. Effects of amplitude, temperature and energy input of ultrasonication was investigated. The amplitude was varied from 60% to 100% whereas temperature was varied from 5 ◦C to 45◦C. The energy input was stressed up from 3.6 kJ to 180 kJ. Mean diameter of NPCC were observed by using Particle Size Analyzer and Transmission Electron Microscopy (TEM). …