| Author | Koh, Kah Hock |
| Call Number | AIT Thesis no. 1349 |
| Subject(s) | Reservoirs--Mathematical models
|
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering of the Asian Institute of Technology, Bangkok, Thailand |
| Publisher | Asian Institute of Technology |
| Abstract | Existing operation techniques are reviewed and a linear programming formulation for the optimal size estimation of a reservoir added to a serially linked multi reservoir system is derived. The solution is sought
with the aid of the Linear Decision Rule and the Delta Release Policy, thus reducing the problem to a linear one. An improvement is incorporated
by including evaporation losses.
These models are applied to the Tachia River Basin where the energy output is to be optimized while satisfying mandatory releases downstream of the system of reservoirs. In this case, the release curves of all
reservoirs and the storage curve of the uppermost reservoir obtained from a previous optimization of the existing system are used as constraints.
The spilling is reduced with corresponding power increase by the progressive adjustments of the release constraints of the most critical reservoir. A simple simulation then generates the approximate energy available for
each case. Operations for promising capacities are also optimized further by Discrete Differential Dynamic Programming. This serves as a check on the suitability of the Linear Decision Rule and the Delta Release Policy as
applied to such a system.
Finally, sensitivity analysis is carried out to investigate the
effect of pan evaporation factors, operational time steps and number of turbine units on the total energy generation capacity bf the system. |
| Year | 1979 |
| Type | Thesis |
| School | Student Research Before 1979 |
| Department | Other Field of Studies (No Department) |
| Academic Program/FoS | Thesis (Year <=1979) |
| Chairperson(s) | Selvalingam, Selvadore |
| Examination Committee(s) | Arbhabhirama Anat ; Eggers, Helmut
|
| Scholarship Donor(s) | Shell Petroleum International |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1979 |