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All Journal Journal of Vision and Ideas (VISA) Jurnal Teknik Sipil Giratory Upgris Jurnal Teknologi Lingkungan Lahan Basah
Ali Masduqi
Institut Teknologi Sepuluh Nopember
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Journal : Jurnal Teknik Sipil Giratory Upgris

 1 
ANALISIS TINGKAT NON-REVENUE WATER (NRW) PADA JARINGAN DISTRIBUSI SPAM PUSAT PERUMDA AIR MINUM PALANGKA RAYA Fahreza Alvian Nanda; Ali Masduqi; Agus Ahyar; Bagas Wahyu Adhi
Jurnal Teknik Sipil Giratory UPGRIS Vol 5, No 1: Juni 2024
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/giratory.v1i1.19458

Abstract

NRW is still a problem for PDAMs in Indonesia in providing drinking water for the community. This can be seen from the national average NRW level in 2021, which was 33.72% (higher than the RPJMN target of 30%). The ATR reduction strategy can be carried out correctly if the indicators or components are accurately measured. The problem is that many PDAMs need help to understand the definition or calculate ATR components according to international standards with high confidence. In this research, a water balance was prepared using WB-EasyCalc to determine the value of each ATR component with a 95% confidence level, potential loss of income, and ILI value. The results of the water balance analysis show that the ATR level at Perumda Air Minum Palangka Raya in May 2023 was 51.84%. This percentage comprises 2.19% non-revenue official consumption and 49.64% water loss. If the NRW percentage is not reduced, the potential loss of income is estimated at IDR 15,395,984,969/year. The component that causes the most water loss is physical water loss, which reaches 42.67%. The physical water loss performance indicator (ILI) has a value of 23, which is included in performance category D (extraordinary waste of resources occurs, and leak reduction programs must be prioritized). Recommendations that can be given are related to the active leak detection and pressure management.
STUDI OPTIMASI POMPA DISTRIBUSI SPAM KOTA PALANGKA RAYA UNTUK EFISIENSI ENERGI Abdillah Nur Alhamidiy; Ali Masduqi; Bustami Bustami; Bagas Wahyu Adhi
Jurnal Teknik Sipil Giratory UPGRIS Vol 5, No 1: Juni 2024
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/giratory.v1i1.19460

Abstract

SPAM of Palangka Raya City has a distribution unit which is powered by six pumps but only two pumps are functioning due to frequent damage to the pumps. The pumps that function is Pump III and Pump V. This research aims to evaluate pump efficiency and specific energy consumption (SEC) so that technical recommendations for optimizing existing distribution pumps are known. Pump III is installed with a VSD with a SEC value of 0.14 KWh/m3 with a pump efficiency of 70.41% so it does not require minor or major repairs but requires a new backup pump because it works 24 hours while Pump V has a SEC of 0.27 KWh/m3 with a pump efficiency of only 36.97% which requires a new pump replacement. Both pumps experienced the same problem, namely V-Unbalanced which reached 2.72-2.73%, causing a decrease in motor performance which could cause damage to the pump components and VSD, so a capacitor bank and voltage stabilizer were needed. The evaluation of energy loss in the distribution network was carried out by increasing the diameter of 57 pipe segments to reduce headloss to less than 10 m/km.
Co-Authors Abdillah Nur Alhamidiy Adhisa Neela Noor Safira Agus Ahyar Bagas Wahyu Adhi Bustami Bustami Egis Prastiwi Fahreza Alvian Nanda Muhammad Sundoro