| Autor: |
Tahir, N. M., Abu Talib, Siti Hidayah, Abustan, Muhammad Salleh, Najla Syed Hashim, Syarifah Intan, N. S., Saiful Anuar, F. I., Radzaly N. |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 2019, Vol. 2129 Issue 1, p020082-1-020082-7, 7p |
| Abstrakt: |
Reservoir is one of the main sources of water supply and provides functions to hydroelectric power, domestic use, agriculture, flood protection and recreation. However, there are several problems related to sedimentation in the reservoir. Sedimentation occurred when there is a dynamic action between sediment flowing along water against a solid surface. Moreover, sediment can block intakes in reservoirs and damaging tunnels or turbines. Thus, this phenomenon will disturb the water flow and affecting the pump sump system. In order to reduce the problem related to sedimentation problem in pump sump system, this research was conducted to achieve the objectives which are to determine the sediment accumulation in pump sump system and to determine the sediment deposition area in pump sump system. Thus, experimental procedure was conducted using physical modeling. This experiment was carried out with 3 different sizes of pump sump which are 150 micron, 425 micron and 850 micron. Different water flows between 1 l/s to 11 l/s were used at different water level to achieve both objectives. The result of this experiment shows that when the size of sediment is small, it will moves faster to the propeller and affect the efficiency of the propeller, while if the sediment size is big, it will deposited on the bay of the pump system and affect the capacity of pump sum thus decreasing the amount of water. If the water flow increases, more sediment will be brought to the propeller. This situation interfere the effectiveness of the propeller when there were too many impurities to pass through the propeller than water. Other than that, different water level also gives effect on the effectiveness of pump sump system. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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