| Author | Pandit, Dhananjay |
| Call Number | AIT Thesis no.AE-90-50 |
| Subject(s) | Irrigation research
|
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Environment, and Development |
| Publisher | Asian Institute of Technology |
| Abstract | At present most of the Asian countries are facing the problem of very
low efficiencies in the irrigation projects . One of the reasons for this
is the negligence of the channel layout in the command area. The lack
of suitable technical criteria for finding out t he optimal layout of
terminal channels leads to the poor efficiencies of the most of the
Irrigation projects. The present study is an attempt to give the channel
network which will be economical as well as it will give the small losses
by using network models.
In this study, in order to determine the possible optimal layout,
network mode ls viz . Minimal Spanning Tree (MST) Model and Shortest Path
(SP) Model, which would find the layout considering the lengths and the
Out-of-Kilter (OK) Mode l , which considers the lengths as well capacities
of the channels, were examined. The existing MST algorithm was modified
to incorporate the positive gradient condition in case of open channel
network. The results of the models were checked considering cost and
seepage, not only in continuous water supply but also in rotational
irrigation .
Al l the three models were applied to three different fields in the
Pilot project 1 of the Mae Klang Irrigation Project, Kanchanaburi,
Thailand. I t was seen that the use of network models will be very useful
in laying out the channels in the command area.
Through the cost and seepage analysis of the layout obtained from
network models, the MST was found as the best choice among t he network
models. For rotational irrigation, dividing t he fie l d in several number
of blocks and then applying the network models yielded satisfactory
results. |
| Year | 1990 |
| 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) | Goto, Akira ;Paudyal, Guna N.
|
| Examination Committee(s) | Murty, V.V.N |
| Scholarship Donor(s) | Royal Netherlands Government |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1990 |