| Author | Pawin Thanpattranon |
| Call Number | AIT Thesis no.AE-08-09 |
| Subject(s) | Rotary tillers
|
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Agricultural Systems and Engineering, School of Environment, Resources and Development |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. AE-08-09 |
| Abstract | A tracto r operated hig h speed rotary tiller w as developed for reduced tim e and energy with out com prom ising tillin g quality. A new cuttin g drum unit with trans mission gears was designed and fabricated for this study. Experim ents were conducted in Bangkok clay soil at three m oisture content; 5%, 15% and 25% (d.b.). Four tractor forward speeds 0.54, 0.82, 1.26 and 1.82 m /s and three rotavato r rotational speeds 171, 216 and 276 rpm were considered. Soil physical properties, in cluding bulk density, co ne penetration index and pulver ization inde x were determ ined to exam ine the quality of tilled so il af ter rotava ting by the hig h speed rotavator. T ractor whee l slip, dep th of tillag e, power requirem ent, vibration, fuel c onsum ption and field working capacity were also determined to evaluate the rotavator’s efficiency . W hen oper ated at high forward speed, PTO power requirem ent, vertical vibration at driver seat base and fi eld working capacity were high, while pulverization index, wheel slip, depth of tillag e and fuel consu mption wer e low. Furtherm ore, when the rotava tor was opera ted at high rotationa l speed, pulverization index, wheel slip, depth of tillage an d PTO power requir ement were high , whereas vertica l vibra tion an d f uel consu mption were low. Rotav ator with ne w cutting dr um unit sho wed better perform ance when operate d on a m oist soil. It was not ed that the new cutting dru m unit showed higher efficiency on p ulverizat ion index, PTO power requirem ent and fuel consum ption, but wheel slip was higher. |
| Year | 2008 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. AE-08-09 |
| Type | Thesis |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Department of Food, Agriculture and Natural Resources (Former title: Department of Food Agriculture, and BioResources (DFAB)) |
| Academic Program/FoS | Agricultural and Food Engineering (AE) |
| Chairperson(s) | Salokhe, Vilas M.;Tanya Niyamapa |
| Examination Committee(s) | Jayasuriya, Hemantha P.W.;Soni, Peeyush |
| Scholarship Donor(s) | RTG Fellowship |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 2008 |