Main Article Content
The application of ultrasonic on biodiesel processing can increase the reaction rate and improve theconversion of plant oils into biodiesel. Factors affecting the rate of reaction on the application of ultrasonicwaves for biodiesel processing are temperature increasing, acoustic mixing, onset of cavitations andsurface tension on the micro bubble, and the formation of hot spots in the form of instantaneous pressureand high temperature on the molecular scale. The vibrator dipped into the reactants transferred mechanicalenergy which was transformed into heat, cavitations and hot spots. This research was conducted to seethe effect of the volume ratio of reactants and input energy on the rate of conversion of triglycerides intobiodiesel. The results of this study demonstrated a significant effect of the energy input to the conversion oftriglycerides into biodiesel. The greater specific input energy produced the higher conversion and the higherreaction rate. Input energy by using ultrasonic was significantly lower than the use of a mechanical stirrer.
Keywords: ultrasonic, input energy, biodiesel, conversion rate
Diterima: 14 Mei 2010; Disetujui: 28 September 2010
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).