Zafira, Athaya Dhiya (2023) Perencanaan District Metered Area (DMA) Dalam Upaya Penurunan Kehilangan Air (Studi Kasus: Jaringan Distribusi Cabang Karawang, Perumdam Tirta Tarum Kabupaten Karawang. Masters thesis, Institut Teknologi Sepuluh November.
![[thumbnail of 6014221042-Master_Thesis.pdf]](http://repository.its.ac.id/style/images/fileicons/text.png) |
Text
6014221042-Master_Thesis.pdf - Accepted Version Restricted to Repository staff only until 1 April 2026. Download (10MB) | Request a copy |
Abstract
Total kerugian akibat kehilangan air pada Perumdam Tirta Tarum tahun 2022 mencapai 38,63 Milyar dengan rata-rata kerugian tiap bulannya sebesar 3,22 Milyar. Cabang Karawang merupakan wilayah pelayanan terbesar dan penyumbang tingkat kehilangan air terbanyak tiap tahunnya. Pada tahun 2022 tercatat 2,6 juta meter kubik air yang hilang atau sekitar 33% dari total kehilangan air di seluruh cabang dan unit IKK pelayanan. Strategi pengendalian NRW pasif yang semula diterapkan harus beralih menjadi pengendalian proaktif melalui pembentukan DMA (District Metered Area). Penelitian ini bertujuan untuk menentukan zona prioritas perencanaan DMA serta menetukan alternatif skenario DMA terbaik ditinjau dari kelayakan teknis, lingkungan, dan finansial. Penggolongan kinerja kehilangan air fisik dilakukan dengan perhitungan ILI (Insfrastruktur Leakage Index). Penetuan zona prioritas menggunakan metoda Weight Sum Method (WSM) dengan pendekatan evaluasi kinerja teknis masing-masing pipa. Pada zona terpilih, dibentuk skenario perencanaan DMA dengan pendekatan teknik turunan teori graf. Selanjutnya dipilih alternatif skenario terbaik menggunakan metoda Simple Additive Weighting (SAW), Indikator kehilangan air fisik (ILI) Cabang Karawang sebesar 12 (cukup parah) dan tergolong kategori kinerja teknis C (buruk). Hasil evaluasi performa pipa, zona prioritas terpilih yakni zona barat karena memiliki presentasi performa pipa buruk (57,43%) yang lebih tinggi dibandingkan zona timur (51,4%). Pada zona prioritas direncanakan 2 skenario pembentukan DMA, yakni terdiri dari 9 DMA dan 15 DMA. Nilai Index Resiliensi (Ir) sebelum ada DMA sebesar 0,643. Setelah dibentuk DMA, terjadi perubahan nilai Ir untuk masing-masing skenario menjadi 0,575 dan 0,433. Ditinjau dari aspek lingkungan, jumlah air yang terselamatkan untuk skenario 1 sebesar 800,466 m3/tahun dan untuk skenario 2 sebesar 961,637 m3/tahun. Analisis finansial skenario 1 menunjukan nilai net present value (NPV) Rp. 3,097 Milyar dengan nilai benefit-cost ratio (BCR) 1,005 dan payback period (PP) 12 tahun 10 bulan. Skenario 2 menunjukan nilai NPV Rp. 4,625 Milyar dengan nilai BCR 1,074 dan PP 12 tahun 6 bulan. Skenario terbaik dari ketiga aspek tersebut yakni skenario 2 dengan total skor 0,944.
=================================================================================================================================
Total losses due to water loss at Perumdam Tirta Tarum in 2022 will reach 38,63 billion cubic meters of water with an average monthly loss of 3,22 billion cubic meters. The Karawang branch is the most extensive service area and has the greatest annual water loss rate. In 2022, 2,6 million cubic meters of water will be recorded as lost or around 33% of the total water loss in all IKK service branches and units. Therefore, passive NRW control strategy that was originally implemented must be switched to proactive control through the establishment of a DMA (District Metered Area). This research aims to determine priority zones for DMA planning and determine the best alternative DMA scenarios in terms of technical, environmental and financial feasibility. Classification of physical water loss performance is carried out using ILI (Infrastructure Leakage Index) calculations. The Weight Sum Method (WSM) is employed to determine priority zones by assessing the technical performance of each pipe. In the selected zone, a DMA planning scenario is formed using a graph theory derivative technique approach. Then, the best alternative scenario is selected using the Simple Additive Weighting (SAW) method. The physical water loss indicator (ILI) of the Karawang Branch is 12, indicating a significant level of severity (quite severe). It falls under the technical performance category C, which is categorized as poor. After evaluating the performance of the pipes, the west zone was selected as the priority zone due to its larger proportion of poor pipe performance (57,43%) compared to the east zone (51,4%). Within the priority zone, there are two anticipated scenarios for DMA formation, one consisting of 9 DMAs and the other consisting of 15 DMAs. The pre-DMA Resilience Index (Ir) score was 0,643. Following the formation of the DMA, the Ir value for each scenario underwent a modification to 0,575 and 0,433. From an environmental perspective, scenario 1 saves 800,466 m3/year of water, whereas scenario 2 saves 961,637 m3/year. The financial analysis of scenario 1 reveals a net present value (NPV) of IDR 3,097 billion, a benefit-cost ratio (BCR) of 1,005, and a payback period (PP) of 12 years and 10 months. In Scenario 2, the NPV is IDR 4,625 billion, the BCR is 1,074, and the PP is 12 years and 6 months. Scenario 2 is the most optimized option based on these three elements, with a total score of 0,944.
| Item Type: | Thesis (Masters) |
|---|---|
| Uncontrolled Keywords: | DMA, Jaringan distribusi, Kehilangan air, Distribution network, Water loss |
| Subjects: | T Technology > TD Environmental technology. Sanitary engineering > TD481 Water distribution systems |
| Divisions: | Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Environmental Engineering > 25101-(S2) Master Thesis |
| Depositing User: | Athaya Dhiya Zafira |
| Date Deposited: | 17 Jan 2024 06:13 |
| Last Modified: | 17 Jan 2024 06:13 |
| URI: | http://repository.its.ac.id/id/eprint/105528 |
Actions (login required)
 |
View Item |