| Author | Anuphon Pimchuai |
| Call Number | AIT Thesis no.ET-07-31 |
| Subject(s) | Agricultural wastes
|
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Energy |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. ET-07-31 |
| Abstract | The main objective of this study is to eliminate some of the disadvantages of agriculture residues. The scope has been set to cover the design and fabrication of a torrefication experimental set up. The torrefication process for agriculture residues was performed. Subsequently, the torrefied products with their hydrophobic properties were analyzed. The optimum condition for the torrefication process was carefully observed and evaluated. Eventually, the gasification experiments of the torrefied product was conducted and analytically compared with the raw feedstock. During the torrefaction, temperature and residence time were set at 250, 270, 300 °c and 1, 1.5, 2 hours, respectively. The rice husk, sawdust, peanut husk, bagasse and water hyacinth were used as agriculture residues in this process. It is found that the higher heating value (HHV) continues to increase by around 9-16.6 % when the temperature increases from 250 °C to 300°C. In case of variations of residence time, there is only 2.5-4.7 % increase when the residence time climbs from 1 to 2 hours at a constant temperature (depending on fuel type). The maximum difference between initial and final HHV is 39.89% for bagasse and the minimum is 7.21% for sawdust. A preliminary study on the temperature rise in a spout fluid bed gasifier using torrefied fuel shows encouraging result. Interestingly, 1.6 kg of torrefied rice husk is able to rise the temperature in a spout-fluid bed gasifier from 270°C to 905°C (635°C rise) in only 16 minutes. At the similar condition, the raw rice husk gives the temperature boost to only 300°C |
| Year | 2007 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. ET-07-31 |
| Type | Thesis |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Department of Energy and Climate Change (Former title: Department of Energy, Environment, and Climate Change (DEECC)) |
| Academic Program/FoS | Energy Technology (ET) |
| Chairperson(s) | Dutta, Animesh |
| Examination Committee(s) | Kumar, Sivanappan;Jayasuriya, Hemantha |
| Scholarship Donor(s) | Energy Conservation Fund Energy Policy and Planning Office (EPPO |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 2007 |