| Author | Taweechai Nimasang |
| Call Number | AIT Thesis no. AE-97-5 |
| Subject(s) | Harvesting machinery--Japan
|
| Note | A thesis submitted in partial fulfillment of the requirements
for the degree of Master of Engineering, School of Environment, Resources and development |
| Publisher | Asian Institute of Technology |
| Abstract | Two models of Japanese combine harvester, HL-1050 and fil-1400 were tested for
field performance on Japanese rice and Thai rice variety.
The effective field capacity of the fil-1050 combine on Japanese rice harvesting, at a
working speed of 0.82 km/h and 1.20 km/h averaged 0.046 ha/h and 0.068 ha/h, respectively.
The field efficiency was found to be 71.8 % and 72.6%, respectively. The total machine
operation losses averaged about 3 .64 % and 6.11 %, respectively. The plot size ranged from
0.029 ha to 0.137 ha.
At a working speed of 1.07 km/h and 1.42 km/h, the fil-1400 combine had the
effective field capacity of 0.062 ha/h and 0.078 ha/h, respectively. The field efficiency was
found to be 71.6 % and 70 %, respectively. The total machine operation losses averaged about
3.31 % and 5.39 %, respectively. The plot size ranged from 0.033 ha to 0.187 ha. The HL1400 combine was the only one testing on Thai rice at two different speeds, it had the effective
field capacity of 0.044 ha/hand 0.052 ha/h, respectively, while the field efficiency was found to
be 51 % and 45 %, respectively. The plot size ranged from 0.02 ha to 0.03 ha. The lowering of
the effective field capacity and field efficiency as compared to Japanese rice harvesting was due
to the long time lost for declogging of the cut crop in the threshing chamber. The average total
machine operation losses was found to be 7.06 % and 9.27 % respectively. The total grain
losses were higher as compared to Japanese rice harvesting. Based on their field capacities and
efficiency, the machines have chances of adoption only on Japanese rice harvesting.
The grain quality in terms of percent of ratio of mixture was observed ,It was found that
damaged grain of the two varieties of rice increased at lower working speed due to the long
time spent on threshing operation. On the other hand, tailing grain increased at higher working
speed. |
| Year | 1997 |
| 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) | Gee-Clough, David; |
| Examination Committee(s) | Salokhe, V. K. ;Thanya Kiatiwat ; |
| Scholarship Donor(s) | Her Majesty Queen Sirikit, Thailand ; |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1997 |