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All Journal Tibuana : Journal of Applied Industrial Engineering Stigma : Jurnal Matematika dan Ilmu Pengetahuan Alam Unipa
Yanatra Budi Pramana
Universitas PGRI Adi Buana Surabaya
Mathematics

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ANALYSIS OF LOSS WATER ON PIPE DISTRIBUTION ”NON REVENUE WATER (NRW)” NETWORK PDAM SURYA SEMBADA CITY OF SURABAYA WITH CAUSAL LOOP DIAGRAM (CLD): ANALYSIS OF LOSS WATER ON PIPE DISTRIBUTION ”NON REVENUE WATER (NRW)” NETWORK PDAM SURYA SEMBADA CITY OF SURABAYA WITH CAUSAL LOOP DIAGRAM (CLD) Yanatra Budi Pramana
Tibuana Vol 1 No 1 (2018): Tibuana
Publisher : UNIPA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (173.545 KB) | DOI: 10.36456/tibuana.1.1.1587.24-33

Abstract

Water is an important supporting factor in humanlife. The problem of clean water in an area is managed by Perusahaan Daerah Air Minum (PDAM) Surabaya. PDAM Surya Sembada as a water management company in Surabaya is expected to be able to distributethe needs of clean water, however, in the distribution network, sometimes experiencing problems that cause water is not fully channeled to the customer, to overcome this problem, the Causal Loop Diagram approach is used to identify the cause of the water loss,after knowing these factors, we have been made model with Causal Loop model,to calculate the water loss that occurred, in PDAM Surya Sembada Surabaya especially DMA 109 using Infrastructure Leakage Index (ILI) method. The Causal Loop Diagram approach, various causes of water loss include: physical water loss caused by reservoir leakage, transmission line leakage and distribution pipeline leakage; non physical water loss caused by meter fault, wild connection and water theft. Based on the data obtained, obtained NRW value at DMA 109 of 439.455.72 m3 / year or by 25% with a loss of 329.591.8 m3 / year. Service pipe leakage up to the customer meter is 1.757.822.8 m3 / year.
Pengembangan Media Lumpur Lapindo Sebagai Bahan Tambah Pembuatan Keramik Ridho Sampurno; Ilham Jangkit Pamuncak; Nova Eka Saputra; Yanatra Budi Pramana; Krisyanti Budipramana
STIGMA: Jurnal Matematika dan Ilmu Pengetahuan Alam Unipa Vol 16 No 1 (2023)
Publisher : Universitas PGRI Adi Buana Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36456/stigma.16.1.7408.28-34

Abstract

In making ceramics, several materials are needed, namely feldspar, silica, clay, and talc and go through several processes that are milling, casting, drying, dry body inspection, glazing and calcination. In order to get good rheology results, we must get quality ingredients. In the Lapindo mudflow, it is often likened to just a natural disaster and very few think about how to manage the mud. Lapindo mud there is a large amount of silica which might be used for making ceramics. To get pure silica in Lapindo mud it is necessary to carry out an extraction process.
Implementation of Material Requirement Planning (MRP) in Controlling Raw Materials for Shoes Products at PT.XYZ Chandra Sukma Adhiyasa; Indra Dwi Febryanto; Prihono .; Yanatra Budi Pramana
Tibuana Vol 6 No 2 (2023): Tibuana
Publisher : UNIPA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36456/tibuana.6.2.7788.119-126

Abstract

PT. XYZ is an industry in East Java that produces products made from animal skins as raw materials. The product produced by this industry is loafers. So far, this industry has had problems with leather raw materials which often experience excess supply requiring high investment, although at certain times they also experience shortages which result in not fulfilling consumer demand. MRP is a system specifically designed to ensure the availability of materials, items or components when needed to meet production schedules and ensure the availability of finished products for consumers in situations of surging demand. MRP can answer exactly what material, how much, and when (what, how much and when) is needed so that the production process can run according to schedule. The results of this study indicate that the Material Requirement Planning (MRP) method has a total raw material inventory control cost of Rp. 189,646,600 and by using the company's method, the raw material control value is Rp. 323,325,500 Savings in raw material control costs that can be obtained by applying the MRP method are Rp. 17,416,700 or about 0.94%.
Co-Authors Chandra Sukma Adhiyasa Ilham Jangkit Pamuncak Indra Dwi Febryanto Krisyanti Budipramana Nova Eka Saputra Prihono Ridho Sampurno