Rayhansyah, Farizki Ahmad (2025) Studi Numerik Pengaruh Sistem Proteksi Gas Accumulator Terhadap Sistem Perpipaan Pada Unit Instalasi Pengolahan Air Minum (IPAM) Ngagel 3 PT PDAM Surya Sembada Surabaya. Other thesis, Institut Teknologi Sepuluh Nopember.
![[thumbnail of 5007211185-Undergraduate_Thesis.pdf]](http://repository.its.ac.id/style/images/fileicons/text.png) |
Text
5007211185-Undergraduate_Thesis.pdf - Accepted Version Restricted to Repository staff only Download (3MB) | Request a copy |
Abstract
Fenomena water hammer merupakan permasalahan serius dalam sistem perpipaan, khususnya pada instalasi pengolahan air minum. Lonjakan tekanan akibat pemadaman pompa atau penutupan katup secara tiba-tiba dapat menyebabkan kerusakan pada jaringan pipa. Penelitian ini bertujuan untuk menganalisis pengaruh penggunaan gas accumulator sebagai sistem proteksi terhadap fenomena water hammer yang terjadi di IPAM Ngagel 3 milik PT PDAM Surya Sembada Surabaya.
Pemodelan dilakukan dengan software AFT Impulse 8.0 menggunakan dua skenario: sistem tanpa alat proteksi dan sistem dengan Gas Accumulator. Sistem yang dimodelkan terdiri dari 8 pompa produksi dan 2 pompa cadangan dengan kapasitas total 2000 L/s dan diameter pipa utama sebesar 900 mm. Analisis akan difokuskan pada titik-titik rawan seperti bagian discharge pompa dan pipa utama.
Hasil yang didapatkan pada simulasi berupa grafik dari fluktuasi tekanan yang terjadi pada sistem perpipaan. Dari hasil simulasi sistem perpipaan tanpa Gas Accumulator didapatkan hasil fluktuasi pada P5 mencapai 23,02 bar pada detik ke-67,94, P59 mencapai 13,58 bar pada detik ke-10,27, dan P61 mencapai 8,68 bar pada detik ke-47,72. Setelah dilakukan pemasangan Gas Accumulator pada sistem perpipaan didapatkan hasil fluktuasi pada P5 menjadi 6,47 bar pada detik ke-20,22, P59 menjadi 5,88 bar pada detik ke-2,01, P61 menjadi 5,23 bar pada detik ke- 6,77. Dilihat dari hasil simulasi, Gas Accumulator mampu meredam terjadinya lonjakan tekanan akibat water hammer dan mempersingkat waktu terjadinya lonjakan tekanan supaya pipa terhindar kerusakan yang parah.
========================================================================================================================
The water hammer phenomenon presents a serious issue in piping systems, particularly in drinking water treatment installations. Pressure surges resulting from sudden pump shutdowns or rapid valve closures can lead to significant damage to the pipeline network. This study aims to analyze the effect of using a gas accumulator as a protection system against water hammer occurrences at IPAM Ngagel 3, operated by PT PDAM Surya Sembada Surabaya.
The modeling is conducted using AFT Impulse 8.0 software under two scenarios: a system without any protection devices and a system equipped with a gas accumulator. The modeled system consists of 8 operating pumps and 2 standby pumps with a total flow capacity of 2000 L/s and a main pipe diameter of 900 mm. The analysis will focus on critical points such as the pump discharge and the main pipeline.
The results obtained from the simulation are graph of pressure fluctuations occurring in the piping system. From the simulation results of the piping system without a Gas Accumulator, the fluctuations at P5 reached 23.02 bar at 67.94 seconds, P59 reached 13.58 bar at 10.27 seconds, and P61 reached 8.68 bar at 47.72 seconds. After installing the Gas Accumulator in the piping system, the pressure fluctuations at P5 were reduced to 6.47 bar at 20.22 seconds, P59 to 5.88 bar at 2.01 seconds, and P61 to 5.23 bar at 6.77 seconds. Based on the simulation results, the Gas Accumulator is capable of dampening pressure fluctuations caused by water hammer and shortening the duration of pressure fluctuations to prevent severe damage to the pipes.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | AFT Impulse, gas accumulator, IPAM Ngagel, proteksi tekanan, sistem perpipaan , Water hammer. AFT Impulse, IPAM Ngagel, pressure protection, piping system, Water hammer. |
| Subjects: | T Technology > TJ Mechanical engineering and machinery > TJ903 Pumping machinery. T Technology > TJ Mechanical engineering and machinery > TJ935 Pipe--Fluid dynamics. Tubes--Fluid dynamics |
| Divisions: | Faculty of Industrial Technology and Systems Engineering (INDSYS) > Mechanical Engineering > 21201-(S1) Undergraduate Thesis |
| Depositing User: | Farizki Ahmad Rayhansyah |
| Date Deposited: | 01 Aug 2025 09:23 |
| Last Modified: | 01 Aug 2025 09:23 |
| URI: | http://repository.its.ac.id/id/eprint/125809 |
Actions (login required)
 |
View Item |