A mass transfer study of vegetable oils combustion | |
| Author | Orapin Saejung |
| Call Number | AIT RSPR no. ET-87-20 |
| Subject(s) | Vegetable oils as fuel Mass transfer |
| Note | A research study (12 credits) submitted in partial fulfillment of the requirement for the degree of Master of Engineering, School of Environment, Resources and Development |
| Publisher | Asian Institute of Technology |
| Abstract | Mass transfer numbers of single droplet combustion of vegetable oils and diesel oil were predicted from their physical and chemical properties. These predicted values decreased from diesel oil , palm kernel oil, palm olein, coconut oil and congealed palm oil respectively. Combustion rates were predicted for droplet diameters of 2.5 and 5.0 cm. under natural convection conditions. For coconut oil and palm kernel oil, the predicted combustion rates correspond with the predicted mass transfer numbers whereas the others resulted in disagreement which was due to the inaccuracy of Schmidt number estimation. Vegetable-diesel blends were also studied and they implied t hat the high percentage of vegetable oils used resulted in the reduction of mass transfer numbers and combustion rates. To verify the predicted values of the single droplet combustion, a test apparatus was designed and combustion tests were conducted under the natural convection condition. Palm kernel oil , coconut oil and diesel oil were tested. Observed results agree fairly well with those predicted a t the droplet diameter of 5 . 0 cm. The deviation of experimental study from prediction were 1 3.4- 17 . 6 % for mass transfer numbers and 8.5- 10.6 % for combustion rates. However, the predicted and observed ratios of values for vegetable oil s to those for diesel oil exhibit reasonable agreement. Among vegetable oil s tested, palm kernel oil is suggested to b e used in diesel engine for the advantages of the highest mass transfer number and combustion rate whereas palm olein needs either a filtered process or preheating and coconut oil has a higher price . |
| Year | 1987 |
| Type | Research Study Project Report (RSPR) |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Other Field of Studies (No Department) |
| Academic Program/FoS | Energy Technology (ET) |
| Chairperson(s) | Prida Wibulswas |
| Examination Committee(s) | Mora, Jean-Claude ;Bhattacharya, Sribas C. |
| Scholarship Donor(s) | German Academic Exchange Service (DAAD) |
| Degree | Research Studies Project Report (M. Eng..) - Asian Institute of Technology, 1987 |