| Author | Hasan, Mahbub |
| Call Number | AIT Thesis no.AE-87-04 |
| Subject(s) | Wells--Bangladesh
|
| 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 | Pump irrigation systems serve a major portion of the
irrigated areas in Bangladesh. Knowledge of the pump discharge
is one basic information needed for proper planning, designing,
installing and managing these systems. However, the discharge of
the pump is seldom measured after installation or comm1s1oning .
Whenever the pump discharge is required,the rated capacity of the
unit is used .Several past studies revealed that most of the
pumping units discharge much less than their rated capacity.
This study was undertaken to develop a portable orifice-type
flow meter which is relatively easy to transport and attach to
the pump discharge pipe, readily computable and inexpressible.
A 4-inch (10.16 cm) and another 6-inch (15.24 cm) "slit-Orifice Meter" were fabricated in the Agricultural Engineering
Workshop of the Bangladesh Agricultural Research Institute
(BARI), Joydebpur, Bangladesh using locally available materials
and the parts satisfying the above mentioned requirements. The 6-
inch (15.24 cm) version was designed and fabricated by Froude
number modelling. The devices were calibrated using a weighing
type set-up established at the Bangladesh Agricultural Research
Institute (BARI). A very good correlation between the predicted
and actual discharge was obtained for both the slit-orifice
meters . The 4-inch (10.16 cm) Slit-Orifice Meter was then used
to determine the discharges of the risers of underground water
distribution network of the central farm of Bangladesh
Agricultural Research Institute (BARI) and the 6-inch (15.24 cm)
version was used to determine the discharges of the deep-tub wells at the Regional Agricultural Research Stations (RARSs)
in Jamalpur and Ishurdi and at the central farm of Bangladesh
Agricultural Research Institute (BARI), Joydebpur. |
| Year | 1987 |
| Type | Thesis |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Other Field of Studies (No Department) |
| Academic Program/FoS | Agricultural and Food Engineering (AE) |
| Chairperson(s) | Mizutani, Masakazu |
| Examination Committee(s) | Murty, V.V.N ;Paudyal, Guna N.
|
| Scholarship Donor(s) | Government of Australia |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1987 |