Asmara, Galis (2022) Peningkatan Efisiensi Energi Pada Sistem Distribusi Sumbersari Perumda Air Minum Tugu Tirta Kota Malang. Masters thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Pelayanan air minum Kota Malang diselenggarakan oleh Perumda Air Minum Tugu Tirta Kota Malang menggunakan kombinasi sistem perpompaan (73%) dan sistem gravitasi (27%). Dominasi sistem perpompaan mengakibatkan biaya energi di Perumda Air Minum Tugu Tirta Kota Malang (Rp 478/m3) lebih tinggi dibandingkan rata-rata nasional (Rp 345,77/m3). Lokasi penelitian di Sistem Distribusi Sumbersari dipilih karena operasional pompa berjalan selama 24 jam mengikuti fluktuasi pemakaian sehingga penggunaan energi tidak efisiensi.
Penelitian ini menganalisis alternatif peningkatan efisiensi energi pada sistem perpompaan Sumbersari melalui 2 (dua) skema, yaitu penggunaan Elevated Reservoir dan pemasangan Variable Speed Drive (VSD). Metode penelitian yang dilakukan antara lain analisis total pemakaian energi eksisting, kajian teknis jaringan pipa dengan Epanet 2.0, melakukan perencanaan sistem pada kedua alternatif beserta analisis jaringan pipa dengan Epanet 2.0, identifikasi peningkatan efisiensi energi, menghitung perkiraan biaya, dan analisis kelayakan finansial.
Hasil penelitian menunjukkan bahwa kedua alternatif dapat meningkatkan efisiensi pada sistem eksisting. Pembangunan Elevated Reservoir berkapasitas 129 m3 menghasilkan penghematan energi listrik yang lebih besar dibandingkan VSD, yaitu sebesar 29,49% dengan nilai Spesific Energy Consumption (SEC) 0,37 kWh/m3. Sedangkan pemasangan VSD menghasilkan penghematan 10,18% dan nilai SEC 0,35 kWh/m3. Namin, berdasarkan hasil analisis teknis dan kelayakan finansial bahwa skema pemasangan VSD lebih dapat direkomendasikan dibandingkan pembangunan Elevated Reservoir. Pemilihan tersebut didasarkan pada terpenuhinya aspek teknis dan seluruh aspek finansial yaitu NPV sebesar Rp 699.634.016; BCR sebesar 1,64; PP kurang dari 4 tahun; dan IRR sebesar 72,18%.
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Malang city's drinking water service is organized by Perumda Air Minum Tugu Tirta using a combination of pumping system (73%) and gravity system (27%). The dominance of the pumping system resulted in energy costs at Perumda Air Minum Tugu Tirta of Malang City (Rp 478 /m3) higher than the national average (Rp 345,77 /m3). Sumbersari Distribution System was chosen as the study location because the pump operation runs for 24 hours following customer usage fluctuations and it causes the energy usages to become inefficient.
This study analyzes alternative energy efficiency improvements in Sumbersari Distribution System through 2 (two) schemes. The first was through the construction of an Elevated Reservoir and the second was through the installation of a Variable Speed Drive (VSD). The methods of this study were the analysis of the total existing energy usage, technical analysis on the pipeline network with Epanet 2.0, design on both schemes along with pipeline analysis with Epanet 2.0, identification of energy efficiency improvements, calculation of cost estimates, and the analysis of financial feasibility.
The results showed that the two alternatives could increase the efficiency of the existing system. The construction of an Elevated Reservoir with a capacity of 129 m3 resulted in higher electrical energy savings compared to VSD. It had an electrical energy savings of 29.49% and Specific Energy Consumption (SEC) of about 0.37 kWh/m3. The other scheme, the installation of a VSD resulted in an electrical energy savings of 10.18% and SEC of about 0.35 kWh/m3. However, based on the results of technical analysis and financial feasibility, the VSD installation scheme was more recommended than the construction of an Elevated Reservoir. The selection was based on the fulfillment of all technical and financial aspects, with an NPV of about Rp 699.634.016, BCR of 1.64, PP less than 4 years, and IRR of 72,18%.
| Item Type: | Thesis (Masters) |
|---|---|
| Additional Information: | RTL 628.144 Asm p-1 2022 |
| Uncontrolled Keywords: | efisiensi energi, elevated reservoir, variable speed drive, sistem distribusi sumbersari, sumbersari distribution system, energy eficiency, elevated reservoir, variable speed drive |
| 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: | Galis Asmara |
| Date Deposited: | 14 Jan 2022 01:52 |
| Last Modified: | 14 Nov 2023 08:00 |
| URI: | http://repository.its.ac.id/id/eprint/92267 |
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