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All Journal DINAMIKA Jurnal Ilmiah Teknik Mesin INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY
Darmawan, Ilham Kari Budi
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Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Energy Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Analisis Kebutuhan Pompa Air Baku Head Tinggi Untuk Kebutuhan Air Industri Smelter Mangidi, Uniadi; Aksar, Prinob; Darmawan, Ilham Kari Budi
Dinamika : Jurnal Ilmiah Teknik Mesin Vol 15, No 2 (2024):
Publisher : Jurusan Teknik Mesin, Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33772/djitm.v15i2.47915

Abstract

Kebutuhan air baku sangat penting untuk keberlangsungan industri pengolahan bijih nikel (Smelter). Umumnya, pengaliran air secara grafitasi atau dengan pompa head rendah menjadi prioritas utama. Kenyataannya, pengaliran tersebut tidak selalu dapat dilakukan di lapangan karena kondisi teknis dan lingkungan. Tingginya perbedaan elevasi antara sumber air (+5 m) dan pabrik Smelter (+185 m) di lokasi penelitian, serta besarnya debit air (610 l/d) yang akan di supply, memaksa penggunaan pompa air head tinggi. Fenomena seperti ini masih jarang dikaji dalam berbagai studi pompa. Penelitian ini bertujuan untuk mengkaji kebutuhan perpompaan yang sesuai dan effisien untuk head tinggi dari Sungai Tamboli menuju smelter yang terletak di Kecamatan Wolo Kabupaten Kolaka. Penelitian dimulai dengan mengkaji kebutuhan pipa yang digunakan dengan Software EPANET 2.2. Panjang total pipa adalah 10,965 km. Berdasarkan hasil analisis, jumlah pompa yang dibutuhkan sebanyak delapan (8) buah dengan kebutuhan dimensi pipa tranmisi adalah 20 inch. Masing-masing pompa mempunyai kapasitas 0,101 m3/s dengan kebutuhan head sebesar 340,04 m. Tipe impeller pompa yang digunakan berjenis impeller francis dengan putaran spesifik 2950 rpm dan kebutuhan daya penggerak pompa sebesar 597,01 kW. Jenis pompa dibutuhkan adalah pompa sentrifugal radial bertingkat banyak (centrifugal multistage pump).
STUDY ON THE DEVELOPMENT AND PERFORMANCE OF WATER DISTRIBUTION NETWORKS IN LANGARA URBAN AREA, SOUTHEAST SULAWESI DARMAWAN, ILHAM KARI BUDI; Bakri, Bambang; Ibrahim, Roslinda; Arai, Yasuhiro; Jumain, Mazlin
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY VOLUME 8, NUMBER 2, OCTOBER 2025
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/urbanenvirotech.v8i2.23293

Abstract

Aims: This study was aimed to evaluates the development of the water distribution network in the IKK PDAM Lama of Konawe Kepulauan Regency- Southeast Sulawesi Province, Indonesia, particularly in West Wawonii Sub-district, which faces the challenge of increasing water demand due to population growth and urbanization. Methodology and results: The study utilized survey methods of water pressure, discharge, and physical condition of the network, as well as secondary data such as network maps and PDAM technical reports. Water demand projections were conducted based on the technical standards of the Minister of Public Works and Housing Regulation No.27/PRT/M/2016, with network hydraulics simulations using EPANET 2.2 software to analyze water pressure and flow under existing conditions and after network development. Conclusion, significance and impact study: Simulation results indicate that the water distribution network developed in 2025 fails to meet community demand, evidenced by negative pressure zones requiring network design revision. Initial optimization involved increasing the main pipe diameter to 150 mm and using Galvanized Iron Pipe (GIP) to reduce leakage, which satisfied demand until 2035 but fell short by 2040. Further optimization increased the main pipe diameter to 200 mm and the divider pipe to 160 mm, successfully meeting water demand until 2045. This study highlights the necessity of sustainable planning and continuous optimization in water distribution networks to maintain adequate service pressure and reliable clean water supply, especially in rapidly growing urban areas.
Co-Authors Aksar, Prinob Arai, Yasuhiro Bambang Bakri Ibrahim, Roslinda Jumain, Mazlin Uniadi Mangidi