PERFORMANCE ANALYSIS OF PUMPS AND WATER HAMMER PHENOMENON IN THE CLEAN WATER TRANSMISSION PIPING SYSTEM AT PDAM TIRTA HANDAYANI GUNUNGKIDUL BARON UNIT

• Main Author: Afredo Silalahi, Septian
• Format: Final Project
• Language: Indonesia
• Subjects: Teknologi
• Online Access: https://digilib.itb.ac.id/gdl/view/77502
• Institution: Institut Teknologi Bandung

PDAM Tirta Handayani plays an important role in providing quality and continuous clean water to the local population. Recently, several pump performance issues have arisen that have the potential to disrupt service and result in higher operational costs. An analysis of pump performance is needed to understand the pump's working condition, identify existing problems, and formulate recommendations for pump performance improvement. The stages carried out in this Final Project is started by hydraulic calculations to determine the pump operating point and continued with an analysis of pump power, pump efficiency, cavitation phenomenon, and water hammer phenomenon to understand the risks that may occur in the clean water transmission piping system. A series of recommendations are made to improve the pump performance. Based on the 8 pipeline tracks in the Baron unit that have been analyzed, there are errors in the pump selection on tracks 1, 3, and 7, resulting in low efficiency. The pump on track 1 has an efficiency of 56%, the two pumps on track 3 have an efficiency of 35%, and the pump on track 7 has an efficiency of 60%. Furthermore, there are mechanical damages identified from the shift in the pump characteristic curve, leading to a reduction in flow rate. The most significant flow rate reduction occurred on track 4, reaching 16,3 l/s. There are three pumps on tracks 2, 4, and 5 that require power exceeding the capacity of their respective motors. All pumps and transmission pipes are safe from cavitation phenomena and damage from pressure surges due to the water hammer phenomenon. Based on the simulation conducted, operating the pumps in series on tracks 1, 3, and 7 can improve pump efficiency up to near the best efficiency point (BEP).