Article Per Year (5 Year)
p-Index From 2021 - 2026
0.408
P-Index
This Author published in this journals
All Journal Serambi Engineering
Ervin Nurhayati
Institut Teknologi Sepuluh Nopember
Earth & Planetary Sciences Energy Engineering Environmental Science Industrial & Manufacturing Engineering

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
Audit Energi Awal Pada Pompa Distribusi Sampangan dan Pompa Transport Kaligarang Perumda Air Minum Tirta Moedal Kota Semarang Ghalib Ghibran Wahab; Ervin Nurhayati
Jurnal Serambi Engineering Vol. 9 No. 4 (2024): Oktober 2024
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Perumda Tirta Moedal Drinking Water Semarang City has seven units of water treatment plants (IPA) with a capacity of 2760 litres/second. To distribute the water produced by Perumda Tirta Moedal Drinking Water, Semarang City uses 145 units of water pumps, which causes high energy costs. Based on the Summary Book of BUMD Performance for the Implementation of Drinking Water Supply System (SPAM) in 2023, the energy cost of Perumda Tirta Moedal Drinking Water Semarang City is IDR 392/m3, where the value of this energy cost is higher than the national average. The high cost of energy, especially electricity, currently makes the company's operational burden even heavier if good energy management and efficiency are not carried out. The first step that can be taken is to carry out an energy audit to assess the efficiency of the pump and determine the Specific Energy Consumption (SEC) value. When carrying out an initial energy audit, data relating to flow, pressure and electrical parameters are collected. The samples in this initial energy audit are the Sample Distribution Pump and the Kaligarang Transport Pump which have a pump efficiency value of 42.96% and the Kaligarang Transport Pump which has a pump efficiency value of 54.95%. Based on the pump efficiency value, Perumda Tirta Moedal Drinking Water needs to take steps to improve energy efficiency.
Studi Tingkat Kehilangan Air Minum Perumda Air Minum Tirta Moedal Kota Semarang Dengan Neraca Air Wb-Easycalc dan Infrastructure Leakage Indeks (ILI) Muhammad Sidiq Nur Harenda; Ervin Nurhayati
Jurnal Serambi Engineering Vol. 9 No. 4 (2024): Oktober 2024
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Perumda Air Minum Tirta Moedal, the manager of the drinking water supply system in the city of Semarang, is facing the challenge of controlling high water losses. In 2022, the company reported a water loss value or NRW of 48.41%. This NRW is much higher than the national NRW reduction target of 20%, so it is necessary to take measures to reduce NRW. This research aims to conduct a water balance analysis and Infrastructure Leakage Index (ILI) assessment to provide recommendations and evaluation of the water loss control programme implemented by Perumda Air Minum Tirta Moedal. The research method used is data analysis using the WB-EasyCalc application to obtain NRW and ILI values. In 2023, the amount of water distributed will be 103,830,494 m3. The collected water amounts to 54,384,744 m3. According to calculations based on the water balance, the water loss in 2023 will be 49,445,750 m3/year (47.62%). Based on the ILI assessment, Perumda Air Minum Tirta Moedal received a score of 44.7 with an average daily pressure of 11.2 metres. The ILI score indicates that Perumda Air Minum Tirta Moedal is in Category D, which means that there is an extraordinary waste of resources and that water loss must be controlled immediately. Recommendations for controlling water loss through evaluation and improvement of existing programmes. Programme improvements include DMA evaluation, customer meter survey and calibration, and pressure management improvements.
Co-Authors Ghalib Ghibran Wahab Muhammad Sidiq Nur Harenda