DRAINAGE SYSTEM PERFORMANCE EVALUATION AND WATER POND DESIGN FOR GAS MACHINE POWER PLANT IN BANGKANAI, CENTRAL KALIMANTAN
Gas Machine Power Plant Bangkanai was built above 5 acre land in Sub-District Lahei, North Barito Regency, Central Kalimantan. Around power plant there wasn’t any storage that could contain run-off water from rain. Therefore i tis necessary to build water pond to contain all the run-off water. Th...
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| Format: | Final Project |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/70859 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Gas Machine Power Plant Bangkanai was built above 5 acre land in Sub-District
Lahei, North Barito Regency, Central Kalimantan. Around power plant there
wasn’t any storage that could contain run-off water from rain. Therefore i tis
necessary to build water pond to contain all the run-off water. The power plant
already has drainase system which need to be evaluated for its performance. The
return period used to calculate the run-off is 2 years and using Log Pearson-III
Method. The hydrograph is obtained from SWMM modelling with 4 hours of rain.
The result of the modelling is all sewer can contain the flood but there is some sewer
which has velocity above maximum velocity. Based on the modelling result it is
required to build current-breaker structure to slow down the velocity. Due to the
steep land, there is also ladder structure between sewer BB4-B and B-Outlet. The
water pond has total volume of 8.773,52 m3, large enough to contain the total runoff
volume of 6.183,00 m3 with the condition that the poo lis empty. The water
surface of the pool is kept at 1,50 m depth. There is a pump at water pond to help
control the water elevation inside the pond. In case the water is flooding, the pump
will wash the water into road drainage in the northwest side of the power plant |
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