MICROHYDRO POWER PLANT DESIGN AT PAREANG, JAMPANG TENGAH DISTRICTS, SUKABUMI REGENCY, WEST JAVA

• Main Author: MULIA JOSIANA NIM : 15814038, RIZQA
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/30630
• Institution: Institut Teknologi Bandung

<p align="justify">This day electricity has become one of humanity main need for all segment. However, there are villages in Indonesia that still lack of electricity because of their limited access of electricity availability. Indonesia has renewable resources and one of them is water. Water is a big potential energy to produce electricity using its flow which has turned into weir and fall effective head. One of water flow that potential is Pareang River which located in Kabupaten Sukabumi. Design of the weir located in Pareang River has 26.79 square km of watershed. The weir of Pareang River used for Pareang Microhydro Power Plant has 2 turbines with dependable discharge Q80 of 0,459 m3/s and Q = 0,92 m3/s and also the effective head about 76,9 metres so it can produce electricity about 587,6 kW and 293,8 kW. The discharge of 100-year flood return period used for design of Pareang Microhydro Power Plant weir is about 128,34 m3/s. Design of Pareang Microhydro Power Plant contains of some components which are Ogee type weir in 20 metres width and 2 metres height, 1 piece of flushing door in 2 metres width and 1 metre height of pilar and 1 piece of intake gate in 0,8 metres wide and 0,5 metre height of maximum the gate opening. The 18 metres long and 2,2 metres width sandtrap is planned with a cross sectional dimension of a square-shaped that has 1,8 metres height is expected to precipitate 10 mm diameter sediments with a flow rate 0,4 m/s. A 901 metres long headrace has a channel design with a trapezoidal-shaped in which its basic width is 1 metres with a depth of 1,1 metres. The other component is 9 metres long of forebay with square shaped cross sectional dimension with 4,5 metres width and 3,15 metres channel depth and completed by the spillway to handle the excess water. The penstock with 0,8 metres diameter of steel and 7 mm of thickness that has 315 metres long and 76,9 metres of net head. The two floors power house used concrete and steel as material with 5 metres width, 16 metres long, and 7 metres height. The last component is tailrace with trapezoidal shaped cross sectional dimension in which its basic width 0,5 metres and 1,2 metres channel depth along 25,1 metres. The weir design is safe against of cavitation, sliding, overturning, eccentricity, and soil bearing capacity in normal water level, flood water level, and extreme condition. The other components are safe against of soil bearing capacity. There are guides to operation and maintenance for weir, intake, flushing gate, and sand trap.<p align="justify"> <br />