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Potensi Hidrologi Dan Tenaga AIR PLTA/PLTM Sungai Maros, Sulawesi Selatan Yelvius Data; Sitampang Bato’ Sau; Erni Rante Bungin; Benyamin Tanan
Paulus Civil Engineering Journal Vol 1 No 1 (2019): Volume 1 No.1, September 2019
Publisher : Program Studi Teknik Sipil UKI Paulus-Makassar

Pembangkit Listrik Tenaga Air (PLTA) adalah alternatif pembangkit energi listrik dengan memanfaatkan potensi tenaga air. Pada penelitian ini dilakukan analisis hidrologi untuk mengetahui potensi tenaga air pada Sungai Maros. Metode penelitian yang digunakan adalah metode analisis data sekunder berupa data curah hujan dan data AWLR. Debit terbesar didapat pada alternatif 1 dengan rata-rata sebesar 16,43 m3/detik dengan Q90 sebesar 1,819 m3/det dan Q95 sebesar 1,482 m3/det, pada alternatif 2 debit rata-rata sebesar 10,41 m3/det dengan Q90 sebesar 1,152 m3/det dan Q95 sebesar 0,938 m3/det, dan pada alternatif 3 debit rata-rata sebesar 9,56 m3/det dengan Q90 sebesar 1,059 m3/det dan Q95 sebesar 0,862 m3/det.Untuk tenaga air potensi terbesar didapat pada alternatif 2 dengan potensi bangkitan untuk Q90 sebesar 150 Kw dan Q95 sebesar 122 Kw, pada alternatif 1 potensi bangkitan untuk Q90 sebesar 119 Kw dan Q95 sebesar 97 Kw, dan pada alternatif 3 potensi bangkitan untuk Q90 sebesar 138 Kw dan Q95 sebesar 113 Kw. Sehingga dapat dikatakan bahwa untuk lokasi 1, 2, dan 3 dapat dibangun PLTA Mini. Kata Kunci : pembangkit listrik tenaga air; daerah aliran sungai; Sungai Maros.

Pengaruh Rangkaian Struktur Tenggelam Tidak Simetris Berbentuk Segitiga Terhadap Refleksi Gelombang Sardi Pulu'; David Arin; Erni.R. Bungin
Paulus Civil Engineering Journal Vol 1 No 2 (2019): Volume 1, No.2, Desember 2019
Publisher : Program Studi Teknik Sipil UKI Paulus-Makassar

Beberapa negara termasuk Indonesia pada saat ini giat dalam mengembangkan kawasan pesisir (daerah pantai), terutama untuk tujuan mengamankan daerah pantai dari permasalahan erosi. Salah satu perlindungan pantai yang telah dibuat oleh manusia adalah struktur pemecah gelombang. Penelitian ini bertujuan untuk mengetahui pengaruh rangkaian struktur tenggelam tidak simetris berbentuk segitiga terhadap refleksi gelombang. Jenis penelitian yang digunakan adalah eksperimental, dimana kondisi tersebut dibuat dan diatur oleh peneliti, dengan demikian penelitian eksperimental adalah penelitian yang dilakukan dengan mengadakan manipulasi terhadap obyek penelitian. Didalam penelitian ini digunakan data primer berupa data yang diperoleh langsung dari simulasi model yang akan dilakukan dilaboratorium. Hasil penelitian menunjukkan bahwa nilai koefisien refleksi (Kr) bergantung pada pemilihan Stroke, Periode Gelombang (T), dan kedalaman air (d) dan hasil untuk pengaruh kerapatan model segitiga terhadap refleksi gelombang memperlihatkan dimana semakin besar jarak kerapatan antar model pemecah gelombang, maka nilai koefisien refleksi (Kr) yang dihasilkan semakin kecil dan sebaliknya. Kata Kunci : pemecah gelombang, segitiga, kerapatan, koefisien refleksi

Clean Water Distribution Network Analysis Using Epanet 2.0 (Case Study of Housing Telkomas Tamalanrea District) Marlan Nathan; Erni Rante Bungin; Herman Welem Tanje
Paulus Civil Engineering Journal Vol 4 No 1 (2022): Volume 4 No.1, Maret 2022
Publisher : Program Studi Teknik Sipil UKI Paulus-Makassar

Telkomas Housing is one of the complexes located in Tamalanrea District, Makassar City, South Sulawesi Province, and is an area that gets clean water distribution from Makassar City PDAM, but Telkomas Housing currently has a problem regarding water pressure. This research is intended to determine the need for clean water in Telkomas housing at present and in the future and make plans for the development of clean water distribution with the development of Telkomas housing. The results of the calculation of current water needs in Telkommas housing with the number of houses that are subscribed to are 405 houses, where the average daily water requirement is 340,200 liters/day, the average daily requirement is 391,230 liters/day and the peak hour is 7,924 liters/second. Then on the calculation of future water needs which is assumed to be 10 years in the future and the number of customers is 70% or about 770 houses, 2 educational facilities, and 3 religious facilities, where the average daily water requirement is 673,080 liters/day, the maximum daily requirement is 774,042 liters /day and peak hours of 15.678 liters/second. Then after analyzing the piping network on Epanet 2.0, there are several nodes whose pressure is still below the distribution pipe criteria or about 5.16 meters of water. each reservoir so that the water pressure value obtained has met the distribution pipe criteria and has been able to meet the water needs of PDAM customers in Telkomas housing both now and in the future.

Analysis of Sediment Transport in the Galang-Galang River, Paku Village, Polewali Mandar Regency Seri Tandira'pak; Erni Rante Bungin; Ika Apriyani
Paulus Civil Engineering Journal Vol 4 No 1 (2022): Volume 4 No.1, Maret 2022
Publisher : Program Studi Teknik Sipil UKI Paulus-Makassar

The Galang-Galang River or also known as the Binanga Karaeng River is a border river between the Polewali Mandar Regency (Polman) which was formerly known as Polmas before separating from South Sulawesi Province. During the rainy season, the water in this river often overflows and can even pose a danger to plantation and rice field farmers around the two border areas. Some of the rainwater that falls on the surface erodes the soil so that it is carried by the flow of water into the river downstream to make the sediment deposits increase. Sediment formed in the flow of the Galang - Galang river will cause a lack of river capacity during the dry season and in the rainy season, it will cause flooding. In this study, direct measurements and sampling of bottom sediment and floating sediment were carried out at three river points. The purpose of the study was to analyze deductions of basic sedimentary transports and sediments floating in the galange-Galang river. The study conducted direct measurements as well as retrieval of basic sedimentary samples and sediment rising at three points of the river. Basic sedimentary transport was calculated using the van rjin method, and for levitating sediments, it was calculated by a momentary method. From the results of the analysis, the bottom sediment transport discharge in the upstream is 4x10-4 tons/day, in the middle, it is 0.0891 tons/day, and in the downstream, it is 1x10-4 tons/day. Meanwhile, the floating sediment transport discharge is 0.208 tons/day upstream, 0.278 tons/day in the middle, and 0.121 tons/day downstream, where floating sediment transport is measured at a very small discharge so that the results are obtained are also small.

Alternatif Perencanaan Terowongan Pengelak (Diversion Tunnel) Bendungan Pamukkulu Natalia Anga; Melly Lukman; Erni Rante Bungin
Paulus Civil Engineering Journal Vol 4 No 3 (2022): Paulus Civil Engineering Journal Volume 4 No.3
Publisher : Program Studi Teknik Sipil UKI Paulus-Makassar

In the construction of the Pamukkulu Dam, the initial design used in planning the evasion tunnel was a horseshoe shape. However, in this study an alternative planning in the form of a circle is proposed.The regional average rainfall was calculated by the Thiessen Polygon method and the design rainfall analysis calculation with a return period of 2,5,10,25 years using the Gumbel method, Log Normal method, and Pearson Type III Log method. By using the distribution suitability test Smirnov-Kolmogorov Test and Chi- Square Test. The design discharge was analyzed using the Nakayasu. Synthesis Unit Hydrograph method.Based on the results of this study, the 25-year design flood discharge was 291.548 m3/second and the circular escape tunnel design was 6 m in diameter with an energy loss height of 11.821 m and the design height of the cofferdam crest was +85.571 m.

Studi Alternatif Perencanaan Bangunan Pelimpah Bendungan Pamukkulu dengan Tipe Mercu Bulat Yoclina Edita; Melly Lukman; Erni Rante Bungin
Paulus Civil Engineering Journal Vol 4 No 3 (2022): Paulus Civil Engineering Journal Volume 4 No.3
Publisher : Program Studi Teknik Sipil UKI Paulus-Makassar

Spillway serves to overflow excess water to be discharged, so that the dam can be maintainedto the maximum extent. This Study aims to determine the flood discharge and to find out the alternative of the Pamukkulu Dam Spillway planning with the Mercu Bulat Type. Regional Average rainfall is calcuted by the Thiessen Polygon method. And analysed by calculating the design rainfall using the Gumbel method, Log Pearson Type III and Log Normal. Then determine the design flood discharge with a return period of 100 years using the HSS Gama Method 1. After calculating the design discharge,the Spillway planning is carried out with the Mercu Round Type. Based on calculations using the HSS Gama 1 method , the 100-yaer return period flood discharge is 219,099 m3/s and Spillway Building is a round crest with an energy height above the crest of 1,115 m.

Analisis Debit Rencana Dan Evaluasi Kapasitas Jaringan Drainase Perumahan Pesona Pelangi Residence Kecamatan Moncongloe Hanna M Singgih; Erni Rante Bungin; Dimas S Palebangan
Paulus Civil Engineering Journal Vol 5 No 3 (2023): Paulus Civil Engineering Journal Volume 5, No.3
Publisher : Program Studi Teknik Sipil UKI Paulus-Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52722/pcej.v5i3.704

In recent years, Maros Regency has become an area that is often affected by floods, one of the affected locations is the Pesona Pelangi Residence housing, Moncongloe District, Maros Regency. Therefore, a plan discharge analysis and drainage system capacity evaluation need to be carried out to find out whether the channel capacity in the Pesona Pelangi Residence housing is adequate to accommodate the planned discharge. It is hoped that the results of the evaluation can be a reference in solving existing problems. The first step of hydrological analysis is the calculation of the planned flood discharge and calculation on the channel dimensions to determine the existing capacity discharge, then compare the plan discharge with the channel capacity discharge. If the capacity discharge exceeds the planned discharge, then the channel is considered capable and vice versait was found that there were 30 channels that were unable to accommodate the planned discharge. If the capacity discharge exceeds the planned discharge, then the channel is considered capable and vice versa. This study calculates the planned discharge with a 5-year anniversary period using the rational method of modifaction and the Manning equation for the calculation of capacity analysis. Based on the survey, the calculation results for the planned rain (5-year anniversary period) were 175.91 mm and it was also found that as many as 30 channels were unable to accommodate the planned discharge.

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