Development and performance evaluation of a cassava digger and soil separator | |
| Author | Kritsana Naoprakhon |
| Call Number | AIT Thesis no.AE-14-04 |
| Subject(s) | Cassava--Processing--Machinery Soil conditioners |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Engineering in Agricultural Systems and Engineering, School of Environment, Resources and Development |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. AE-14-04 |
| Abstract | Cassava is considered as the highly economic crop for country like Tha iland. It was used basically as raw material for several industries. Harvesting of cassava is make large contribution in the total production cost as the cost of labor and shortage of labor in Thailand. Cassava harvesting is not that much mechanized; there are several designs of cassava digger in market since last 30 years. They found used very less by the cassava farmers. However, assistants continuously struggled to bring about essential alterations in existing designs. Lack of sufficient support and tech nical difficulties in design are the primary reasons for farmer, researcher and develops to come to the common conclusion. Therefore, in this research, it was assume that there is need to develop cassava diggers which help in minimizing the harvest cost an d at the same time deals with labor shortage. Due to their reason, cassava digger, mounted to tractor, was designed. The design consisted of the following special properties of the machine: digging unit and soil separator unit. The design prototype consis ted of main frame, blade type and soil separator unit. This study was design digging unit for digging angle adjustment because each angle are used unequal force as well as each cassava variety are used unequal angle. Important part of the cassava digging i s quality after digging. Main frame can move left and right side because each of cassava field unequal as well as each of tractor unequal. The average values of performance of fork shear blade type connected to deformed bars steel, fork shear blade type connected to roller soil separator, curve shear blade type connected to deformed bars steel and curve shear blade type connected to roller soil separator respectively. The average values of working width and depths of digging were 0.51, 0.51, 0.55, 0.55, 0 .38, 0.43, 0.32 and 0.35 m respectively. The averages of concrete effective hours and time consumed for rotating at headland as well as time consumed for adjustment of implement were 532, 668.67, 600, 616.33, 57, 78.34, 78.33, 80, 23, 20, 18 and 30 s respe ctively. The averages of actual travelling speed were 2.05, 1.91, 1.94 and 1.91 m/s respectively. The averages of fuel consumption per working hour were 2.05, 2.28, 1.93 and 2.23 L/h respectively. The averages of fuel consumption per hectare were 8.67, 12. 88, 9.41 and 11.6 L/ha respectively. The averages of field capacity were 0.089, 0.080, 0.090 and 0.086 ha/h respectively. The averages of field efficiency and working losses were 84.97, 82.83, 83.94, 82.15, 6.74, 6.90, 7.95 and 7.23 % respectively. |
| Year | 2014 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. AE-14-04 |
| 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) | Soni, Peeyush |
| Examination Committee(s) | Shivakoti, Ganesh P.;Wattanaporn Meskuntavon |
| Scholarship Donor(s) | Asian Institute of Technology Fellowship;Royal Thai Government Fellowship |
| Degree | Thesis (M. Eng.) - Asian Institute of Technology, 2014 |