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Jurnal Teknik Pengairan Jurusan Teknik Pengairan Fakultas Teknik, Universitas Brawijaya Jl. MT. Haryono 167 Malang
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Jurnal Teknik Pengairan: Journal of Water Resources Engineering
Published by Universitas Brawijaya
ISSN : 20861761     EISSN : 24776068     DOI : 10.21776
Core Subject : Engineering,
Engineering
Jurnal Teknik Pengairan is a scientific journal published regularly twice per year by Faculty of Engineering, Universitas Brawijaya. The paper submitted in this journal covers the fields of Water Resources Information System, Water Resources Conservation, Water Resources Utilization and Efficiency, Water Structure Engineering Planning and Water Resources Engineering Basic Knowledge. The submitted paper can be a summary of research reports or scientific literature review. The language used in this journal is either English or Indonesian.
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Articles 7 Documents
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Search results for , issue "Vol 11, No 1 (2020)" : 7 Documents clear
PEMODELAN DEBIT SUNGAI KAHAYAN MENGGUNAKAN JARINGAN SYARAF TIRUAN BERDASARKAN DATA HUJAN DAN EVAPOTRANSPIRASI Dermawan, Very; Soetopo, Widandi; Alpikarigo, Jano
Jurnal Teknik Pengairan Vol 11, No 1 (2020)
Publisher : Jurusan Teknik Pengairan, Fakultas Teknik, Universitas Brawijaya

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Abstract

Discharge is one of the bases in a plan for a water resource management activity. Determination of the discharge value can be done through measurements directly in the field or through analysis. With the analysis of rainfall on river discharge can be an alternative in water structure planning, with the right methods the results of the discharge analysis will approach with real hydrological condition. In this study, the analysis was carried out using the Artificial Neural Network method to find out the results of the modeling of river discharge based on rainfall and evapotranspiration data and to know the comparison between model discharge and real discharge. To discover the compatible between modeling discharge with real discharge, calibration and learning of Networks has been done with 6 until 9 years learning data, and verification of the model discharge by 4 until 1 years from the rest of the calibration data. In network learning, epoch 500 until 2000 are used. The error test are Mean Square Error (MSE), Mean Absolute Error (MAE), Relative Error (Kr), Correlation Coefficient (R), Nash-Sutcliffe Efficiency (NSE). The results of comparison between model discharge using the Artificial Neural Network with real discharge, based on the test results discover that in the distribution of 7 year learning data and 3 year test data with epoch 1000 that compatible with criteria and had the best value, based on result of Nash-Sutcliffe Efficiency (NSE) value, and the Correlation Coefficient (R)
PERBANDINGAN METODE EVAPORASI POTENSIAL DI BADAN METEOROLOGI KLIMATOLOGI DAN GEOFISIKA SAWAHAN KABUPATEN NGANJUK, JAWA TIMUR Suhartanto, Ery; Limantara, Lily Montarcih; Rossy Tamaya, Hana Arum
Jurnal Teknik Pengairan Vol 11, No 1 (2020)
Publisher : Jurusan Teknik Pengairan, Fakultas Teknik, Universitas Brawijaya

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Abstract

The research aims to at suitable empirical model for reasonable estimation of reference evaporation for Nganjuk region. In this research, the observations were recorded at Sawahan meteorological station are used to calculate the evaporation with the methods of BlaneyCriddle, Penman method, Radiation method, Turc-Langbein-Wundt method, Hamon method, Christiansen method and multiple linier regression. The results of each method compared with the results of the other and validation tests used relative error, Nash-Sutcliffe Efficiency, and Root Mean Square Error. Based on the calculate results it concluded that the appropriate method was multiple linier regression with validation test as follows: rate of relative error is 1,15, rate of Nash Sutcliffe Effiency is 0,70 and rate of Root Mean Square Error is 0,178.
PENENTUAN FORMULASI EMPIRIS YANG SESUAI UNTUK MENGESTIMASI KURVA INTENSITAS DURASI FREKUENSI Wahyuni, Sri; Dwirani, Yosie; Harisuseno, Donny
Jurnal Teknik Pengairan Vol 11, No 1 (2020)
Publisher : Jurusan Teknik Pengairan, Fakultas Teknik, Universitas Brawijaya

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Abstract

High rainfall intensity will cause large surface runoff and can lead to negative effects. The IDF curve makes it easy to calculate the design flood. The purpose of this study is to determine the empirical method of rainfall intensity and IDF that are suitable for the study location. The methods used are Talbot, Mononobe, Hasper Der Weduwen, and Van Breen. The result of the calculation found that the most suitable method for this location is Talbot Method. The Talbot Method has an Average Deviation of 1.49, an Average Relative Error of 8.64%, and the Average of Nash-Sutcliffe Efficiency Coefficient (NSE) by 0.98. Then the calculations for the validation of the selected method is using a 2-year return period and 5-year return period have the results of an Average Deviation value of 2.22, the Average Relative Error value of 15.11% and the Average of Nash-Sutcliffe Efficiency Coefficient (NSE) by 0.93.
KAJIAN PENGEMBANGAN JARINGAN DISTRIBUSI AIR BERSIH PADA PDAM TIRTA BARITO KOTA BUNTOK Diana, Eka Wahyu; Sholichin, Mohammad; Haribowo, Riyanto
Jurnal Teknik Pengairan Vol 11, No 1 (2020)
Publisher : Jurusan Teknik Pengairan, Fakultas Teknik, Universitas Brawijaya

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Abstract

PDAM of Buntok City is a supplier of clean water needs for the area of Buntok Kota, Hilir Sper, Jelapat and Pamait villages. Utilization of discharge is not optimal and water loss is service constraint. This study aims to realize a distribution network system that is able to serve up to 2038 by evaluating the existing conditions of clean water distribution networks,network development plans, water quality and economic analysis to determine water prices. The results of hydraulic simulation show that the existing conditions of pressure and headloss gradient meet technical criteria while the speed is not up standard. Then the development simulation meets the technical requirements of 0,3-4,5 m/s, headloss gradient 0-15 m/km, pressure 0,5-8 atm. Simulation of residual injection chlorine concentration at the inlet reservoir of 0,4 mg/l are given constantly. The results of residual chlorine simulation meet the criteria of 0,383-0,395 mg/l. Economic analysis found that water prices were Rp.6.100,00/m³,BCR 1,23 IRR 12,14% and 11-year BEP. Analysis of the ability of the community to pay Rp.4.200/m³, the amount of government subsidy is Rp.13.905.747.800,00.
KARAKTERISTIK KECEPATAN ALIRAN DI DEKAT DASAR PINTU PELUAPAN BAWAH (SLUICE GATE) Laksitaningtyas, Agatha Padma; Legono, Djoko; Yulistiyanto, Bambang
Jurnal Teknik Pengairan Vol 11, No 1 (2020)
Publisher : Jurusan Teknik Pengairan, Fakultas Teknik, Universitas Brawijaya

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Abstract

Sluice Gates are the most important and often studied in hydraulic structures that are widely used and found, located in nature or artificial open channels. Sluice gates can be opened and closed at the bottom vertically. The sluice gate functions as a regulator of water flow which functions to control the discharge, control the water level and for monitoring the discharge. Water flowing through the sluice gate can be in a free flow condition or in a submerged flow condition that depends on depth of tailwater. The characteristics of the flow that flows through the sluice are based on the equation of energy and momentum conservation law, which depends on the pressure, velocity and depth of water that is upstream or downstream of the sluice. Hydraulics of sluice especially in free-flow conditions is very dynamic, including the profile of water level, the force that occurs on the sluice gate, or the velocity distribution of the bottom sluice gate, which is largely ignored. There are several basic development formulas of flows through the floodgates, especially in the development of vena contracta. Vena contracta will produce the values of the coefficient of discharge (Cd) and the coefficient of contraction (Cc) obtained from the calculation ratio of existing methods. Calculation of events theoretically and through experiments in the laboratory. However, the equation of discharge through the sluice gate is not very effective when used in a large opening condition and in a fully submerged condition.
PENGUATAN WILAYAH BINAAN MANDIRI ENERGI MELALUI PENINGKATAN KAPASITAS MIKROHIDRO DI DAERAH TERPENCIL Asmaranto, Runi; Sugiarto, Sugiarto; Widhiyanuriyawan, Denny; Purnomo, Mangku
Jurnal Teknik Pengairan Vol 11, No 1 (2020)
Publisher : Jurusan Teknik Pengairan, Fakultas Teknik, Universitas Brawijaya

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Abstract

Tanah Merah is an isolated hamlet in the village of Batur that has not been reached by PLN electricity because its geographical is on the slopes of Mount Argopuro and far from the village center. To achieve this just by walking or riding a motorcycle as far as 3 km. In Tanah Merah, micro hydro has been developed from the Kedung Sumur River discharge, but it is not yet optimal. A collaboration was held by BPPM FT UB with CSR of PT PGN (Persero) in 2016, but has not been able to resolve the limited power generated for 500 families. Another potential community is farmers and breeders. Most livestock activities carried out by the community are 267 head of beef cattle with the distribution of cattle farmers in RT 8 totaling 107 households, RT 9 totaling 95 households and RT 10 totaling 62 households averaging 2 cows. With such a large number of cattle, it is of course also produced a large amount of livestock waste. Based on these problems, the UB Community Service Team through the Serving Doctoral Program wants to help partner communities solve existing problems in order to improve their welfare. Efforts are being made to empower community groups of micro-hydro (PLTMH) through the use of renewable energy, namely increasing micro-hydro electricity capacity and empowering micro-hydro-based economies.
ANALISIS PERUBAHAN PENGGUNAAN AIR BERSIH SEBELUM DAN SESUDAH TERJADI KENAIKAN TARIF PDAM DI KABUPATEN BANGLI Yekti, Mawiti Infantri; Kerta Arsana, I Gusti Ngurah; Aryasavira, Made Dwita Berlian
Jurnal Teknik Pengairan Vol 11, No 1 (2020)
Publisher : Jurusan Teknik Pengairan, Fakultas Teknik, Universitas Brawijaya

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Abstract

In 2013 the Bangli Regency Government and the Bangli Regency PDAM agreed to make a new policy related to the increasing of clean water tariffs in the Bangli and Tembuku Districts. This study aims to bring up the trend of changes before and after the PDAM tariff increase of 118%, so that it can be used as a basis for further Bangli PDAM decision making. This study uses a simple random sampling method by randomly taking the samples studied without looking at the strata, and samples are scattered as many as 80 samples in Bangli District and as many as 75 samples in Tembuku District. The analysis showed that the use of clean water experienced a declining trend after the tariff increase of 25.28% based on the survey and 25.31% based on the provision of the PDAM in the Bangli District. Whereas in Tembuku District the reverse trend showed an increase after the tariff increase of 14.08% based on the survey and 14.07% based on the provision of the PDAM. Changes in the use of clean water on average per person / day is influenced by water needs based on the number of family members in each house per month.

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