Study Sedimentation Rate of PLTU Pulang Pisau Due to Jetty Modification in Efforts to Improve Production Capacity

Abstract

Pulang Pisau Steam Power Plant (PLTU) is one of the plants that is used to fulfill the electricity needs of the people in Central Kalimantan Province. By using coal as a source of steam production, the Pulang Pisau PLTU has a capacity of up to 2 × 60 MW. Such a large population growth cannot be avoided and it is therefore denied that the Pulang Pisau PLTU is deemed to require additional production capacity. One alternative that can be given is to increase the amount of fuel capacity, namely coal that can be accommodated. By changing the design of the existing jetty, it is expected that ships with larger capacities can lean on the Pulang Pisau power plant pond. In this study, an analysis of sediment volume rate in the existing condition jetty and two alternative jetties in the PLTU river basin area, where the modeling is done using MIKE21. The results of the existing jetty modeling show the sedimentation volume that was line up for 12 months at 9550.017 m3, while the sedimentation volume of alternative jetty 1 and 2 produced for 12 months respectively were 917.444 m3 dan 8616.040 m3. The first alternative jetty is more efficient in dealing with sediment in terms of increasing production capacity. The alternative jetty is considered to be able to maintain the determined vessel draft and not cause excessive sedimentation impacts in the Pulang Pisau power plant area.