Evaluation of the existing operation policies of Bhumibol and Sirikit reservoirs | |
| Author | Bhuiyan, Md. Anwar Hossain |
| Call Number | AIT Thesis no. 1056 |
| Subject(s) | Sirikit Reservoir (Thailand) Bhumipol Reservoir (Thailand) |
| Note | A thesis submitted in partial fulfillment of the requirement for the degree of Master of Engineering of the Asian Institute of Technology, Bangkok, Thailand. |
| Publisher | Asian Institute of Technology |
| Abstract | The flood control aspect of reservoir regulation have been studied with the derivation of flood control rule curves for both Bhumibol and Sirikit Reservoirs. The operation policies with flood control and of the existing ones are also evaluated. With the approach of a simulation technique and the Streamflow Synthesis and Reservoir Regulation (SSARR) Model, the flood control rule curves are derived taking three cases of maximum reservoir outflow constraints under the flood conditions in 1959, 1961, 1970 and 1975. For each case, the flood rule curves of both reservoirs are derived based upon two ranges of flood magnitude. The first range covers the floods occurring in ~959 , 1970 and 197.5 while the second range is equal to the magnitude of flood occurring in 1961. This is due to the fact that the inflow to the reservoirs in 1961 is very high compared with other years. The material benefit in respect of power generation, irrigation and the amount and frequency of spill are evaluated by monthly long run 'simulation for the period 1953-76 by using existing rule curves. The similar simulation is also done by combining the flood rule curves derived for each case of maximum outflow constraint with the drawdown portion of existing rule curves. The comparison of results indicates that for the rule curves derived for the flood in 1961 the energy generation is much lower and the irrigation shortage is much increased than those resulted from the existing rule curve. with or without modification of drawdown period by the flood .Yule curves derived for other years. Selection of rule curves is recommended based on the frequency analysis of August through October inflow volume which indicates that the return period in 1961 is much higher than the years of return period. Considering that 1961 inflow is a rare event, the rule curves derived for 1959, 1970 and 1975 are selected. The flood control study also indicates that the uncontrolled flow below the tail of Sirikit Dam is large enough to cause floodings at Phitsanulok and Phichit on Nan River whereas local flow below the Bhumibol and Sirikit Dams has great contribution for causing floods at Nakhon Sawan. Moreover, it is found that complete control of flood at Phitsanulok and Phichit is not possible by Sirikit Reservoir. However, joint regulation of both reservoirs can reduce floods at Nakhon Sawan to a certain extent. |
| Year | 1978 |
| Type | Thesis |
| School | Student Research Before 1979 |
| Department | Other Field of Studies (No Department) |
| Academic Program/FoS | Thesis (Year <=1979) |
| Chairperson(s) | Selvalingam, Selvadore ;Tawatchai Tingsanchali |
| Examination Committee(s) | I, Fude |
| Scholarship Donor(s) | The Keidanren Federation of Economic Organizations, Japan |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1978 |