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Dwi Joko Winarno
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Civil Engineering, Building, Construction & Architecture

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Analisis Hidrologi Untuk Penentuan Debit Banjir Rancangan di Bendungan Way Besai Mutya Nivitha; Dwi Joko Winarno; Dyah Indriana Kusumastuti
Jurnal Rekayasa Sipil dan Desain Vol 6, No 1 (2018): Edisi Maret 2018
Publisher : Jurnal Rekayasa Sipil dan Desain

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AbstractResource which is often used for energy source is water as hydro power plant. One of hydro power plant in Lampung province is Way Besai Hydro Power Plant. Considering the importance of this hydro power plant for people, extreme things on the hydro power plant like flood, certainly not desirable. Hydrologic analysis required for get result that was flood design as action anticipation.This study was conducted in Way Besai watershed, Sumber Jaya, West of Lampung. The data required of this study are rainfall data from five stations, flow Way Besai data from 1986 to 2000, and daily rainfall data from two station.From frequency analysis, obtained design flood for the largest single data group return period of 2 years is return period 5 years 131,00 m3/s, return period 10 years 178,42 m3/s, return period 25 years 253,71 m3/s, return period 50 years 322,66 m3/s, return period 100 years 403,45 m3/s, and 499,81 m3/s for return period 200 years. From HEC-HMS, the flood design for return period 2 years sebesar 71,2 m3/s, return period 5 years 90,6 m3/s, return period 10 years 105,7 m3/s, return period 25 years 128,6 m3/s, return period 50 years 156,6 m3/s, return period 100 years 190,8 m3/s and 233,7 m3/s for return period 200 years. Based on calibration result used RMSE, obtained RMSE value is 3,12. Keywords: watershed, design flood, Way Besai, HEC-HMS
Analisis Metode Aliran Permukaan Langsung (Direct Runoff) Sungai Way Besai Menggunakan Software HEC-HMS Juwita Novi Yana; Dyah Indriana Kusumastuti; Dwi Joko Winarno
Jurnal Rekayasa Sipil dan Desain Vol 8, No 4 (2020): Edisi Desember 2020
Publisher : Jurnal Rekayasa Sipil dan Desain

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The river is a gathering place for water in the surrounding environment which flows towards a lower place. Way Besai river is located in Sumberjaya sub-district, West Lampung district which has an area of 410.72 km2. Direct runoff needs to be carried out on the Way Besai river to determine the flood hydrograph that occurs in the Way Besai river. The HEC-HMS model is a numerical hydrological model developed by the Hydrologic Engineering Center (HEC) of the US Army Corps Of Engineers.The methods used in direct flow runoff in the HEC-HMS software are the SCS UH method, the Clark's UH method and the Snyder's UH method. The purpose of this research was to analyze the Way Besai river flood hydrograph by calculating direct runoff using these three methods. The results of this study indicate that the SCS UH method is the most suitable compared to Clark's UH method and Snyder's UH method because it produces the smallest deviation value. Keywords : Way Besai, direct runoff flow, HEC-HMS, SCS UH, Clark's UH, Snyder's UH
Analisis Perbandingan Data Pemodelan Pasang Surut BIG Dengan Data Pengukuran Pasang Surut UHSLC Pada Stasiun Tanjung Lesung Brigitha Cindy Sitanaya; Ahmad Zakaria; Dwi Joko Winarno
Jurnal Rekayasa Sipil dan Desain Vol 8, No 3 (2020): Edisi September 2020
Publisher : Jurnal Rekayasa Sipil dan Desain

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Data pasang surut diperlukan untuk menentukan elevasi bangunan pantai. Badan Informasi Geospasial (BIG) telah menyediakan data pemodelan pasang surut yang dapat diunduh secara gratis. Namun untuk mengetahui keakuratannya, dilakukan perbandingan data BIG dengan data pengukuran tide gauge yang dipublikasikan oleh University of Hawaii Sea Level Centre (UHSLC). Data yang digunakan yaitu data pasang surut 30 harian dari stasiun Tanjung Lesung periode waktu 2008-2012 yang dianalisis menggunakan metode Least Squares dan 9 komponen harmonik pasang surut melalui program ANFOR. Hasil analisis ANFOR diolah sehingga didapat nilai penyimpangan serta keakuratan dari data pasang surut yang dibandingkan. Dari hasil penelitian ini, didapat nilai penyimpangan berdasarkan elevasi yaitu 3,3906 %, nilai koefisien korelasi langsung berdasarkan elevasi sebesar 0,9673, nilai penyimpangan berdasarkan amplitudo komponen pasut K1 sebesar 15,7853 %, O1 sebesar 4,8253 %, P1sebesar 28,1752 %, M2 sebesar 3,2388 %, S2 sebesar 10,6345 %, N2 sebesar 10,5147 %, K2 sebesar 41,3055 %, M4sebesar 97,4340 %, dan MS4 sebesar 97,2310 %, sementara nilai koefisien korelasi berdasarkan amplitudo komponen pasut yaitu 0,9898. Maka dapat ditarik kesimpulan bahwa antara data pemodelan BIG dan data pengukuran UHSLC memiliki tingkat keakuratan tinggi.
Analisis Kualitas Air Hasil Pengolahan Air Hujan Dengan Metode Elektrolisis Menjadi Air Bersih gustin andriani; dwi joko winarno; dyah indriana kusuma
Jurnal Rekayasa Sipil dan Desain Vol 8, No 4 (2020): Edisi Desember 2020
Publisher : Jurnal Rekayasa Sipil dan Desain

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Water is all water that above or below the ground surface, including sea water that is on land. The need for clean water will increase, while clean water is scarce and must be paid handsomely. Meanwhile, the water source crisis is caused by the increasing need for water as a result of the growing population and land functions that can change the hydrological cycle. One way to meet human needs for clean water is by establishing the concept of rainwater harvesting, which is the concept of collecting rainwater that is stored in a reservoir and then the collected water can be used as an alternative source of water.The purpose of this study was to analyze the quality of rainwater before electrolysis and to determine the pH and TDS values of the permanent yield of rainwater and electrolysis.The results of this study are based on the results of laboratory tests showing that the overall quality of water in rainwater meets PerMenKes N0.416 of 1990. For the decreased pH and TDS values in the electrolysis process using a 1 ampere current adapter with a voltage of 300 volts has increased by 0 , 2-0.4 cm in acidic water. As well as for the area of titanium that affects the electrolysis process, the smaller the size of the titanium, the faster it will produce acid water.Keywords: water, rainwater, rainwater harvesting concept, electrolysis method, acid water.
Analisis Hidrologi Untuk Penentuan Debit Banjir Rancangan di Bendungan Way Besai Mutya Nivitha; Dwi Joko Winarno; Dyah Indriana Kusumastuti
Jurnal Rekayasa Sipil dan Desain Vol 5, No 2 (2017): Edisi Juni 2017
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Abstract

AbstractResource which is often used for energy source is water as hydro power plant. One of hydro power plant in Lampung province is Way Besai Hydro Power Plant. Considering the importance of this hydro power plant for people, extreme things on the hydro power plant like flood, certainly not desirable. Hydrologic analysis required for get result that was flood design as action anticipation.This study was conducted in Way Besai watershed, Sumber Jaya, West of Lampung. The data required of this study are rainfall data from five stations, flow Way Besai data from 1986 to 2000, and daily rainfall data from two station.From frequency analysis, obtained design flood for the largest single data group return period of 2 years is return period 5 years 131,00 m3/s, return period 10 years 178,42 m3/s, return period 25 years 253,71 m3/s, return period 50 years 322,66 m3/s, return period 100 years 403,45 m3/s, and 499,81 m3/s for return period 200 years. From HEC-HMS, the flood design for return period 2 years sebesar 71,2 m3/s, return period 5 years 90,6 m3/s, return period 10 years 105,7 m3/s, return period 25 years 128,6 m3/s, return period 50 years 156,6 m3/s, return period 100 years 190,8 m3/s and 233,7 m3/s for return period 200 years. Based on calibration result used RMSE, obtained RMSE value is 3,12. Keywords: watershed, design flood, Way Besai, HEC-HMS
peningkatan kualitas air menggunakan filter mangan zeolit dan karbon aktif Panglima Jundulloh; Dwi Joko Winarno; Dyah Indriana Kusumastuti; Siti Nurul Khotimah
Jurnal Rekayasa Sipil dan Desain Vol 9, No 4 (2021): Edisi Desember 2021
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  Water is a chemical compound that is very important for human life and other living things. the quantity and quality of the well as a water source must meet the physical, chemical and bacteriological requirements. Therefore, proper groundwater treatment is needed to process it into clean water that meets the requirements in terms of quality and quantity so that it is suitable for use by humans. To improve water quality, you can use methods such as filtration. In this final project, water quality improvement is carried out using manganese zeolite and activated carbon filters. The result of this research is to know the efficiency of iron (Fe), manganese (Mn) and E.coli removal using this unit. The results of laboratory tests conducted by the Research and Industrial Standardization Institute of Bandar Lampung with water samples with most parameters such as Fe and Mn have met the standards of the Regulation of the Minister of Health of the Republic of Indonesia Number 32/MENKES/PER/II/2017 concerning Clean Water Quality Requirements, but the test results with E-coli bacteria parameter is 2863 per 100 ml sample which exceeds the maximum level of 0. From this study manganese zeolite and activated carbon filters are effective in reducing TDS levels by 133 and E-Coli bacteria with results of <300 Keywords: water cleaner, zeolite manganese filter and activated carbon
Analisis Perbandingan Hidrograf Satuan Sintetik Gama I dan SCS (HEC-HMS) dengan Hidrograf Satuan Terukur di Sungai Way Besai fadhel dzaki sembiring; Dyah Indriana Kusumastuti; Dwi Joko Winarno
Jurnal Rekayasa Sipil dan Desain Vol 7, No 1 (2019): Edisi Maret 2019
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The Way Besai River is located in Sumber Jaya District, West Lampung Regency. River discharge is an indicator of watershed function in transforming rain into stream flow. River discharge is generally presented by hydrograph. There are two methods to derive unit hydrograph, i. e. Measured Unit Hydrograph method (HST) and Synthetic Unit Hydrograph method (HSS). Synthetic Unit Hydrograph is used if the watershed does not have sufficient hydrometry data for calculating flood discharge. The purpose of this study is to analyze Synthetic Unit Hydrograph Gama I, Synthetic Unit Hydrograph SCS (HEC-HMS), and measured unit hydrograph for Way Besai River. The method used in this study includes Synthetic Unit Hydrograph Gama I, Synthetic Unit Hydrograph SCS (HEC-HMS), and Measured Unit Hydrograph. The results of this study show that Unit Hydrograph derived from Synthetic Unit Hydrograph SCS (HEC-HMS) is better than the result derived from Synthetic Unit Hydrograph Gama I based on peak discharge, peak time, base time and base flow values. Keywords: Watershed, Discharge, Synthetic Unit Hydrograph, Measured Hydrograph Unit, SCS (HEC-HMS), Gama I.
Analisis Hidrograf Satuan Terukur (HST) Sedimen Sungai Air Anak dan Sungai Talang Bandung Wardatul Aini Putri; Dwi Joko Winarno; Dyah Dindriana Kusumastuti
Jurnal Rekayasa Sipil dan Desain Vol 6, No 2 (2018): Edisi Juni 2018
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ir Anak River and Talang Bandung River is upstream of the Way Besai River that is the largest in West Lampung District. Problems which often occur in the upstream region is land erosion causing sedimentation. The purpose of this study : to analyze the hydrograph measured units, to determine the sediment rate and determine the amount sediment HST Air Anak River and Talang Bandung River.The location of this research was conduced in the Air Anak watershed and Talang Bandung watershed, Sumber Jaya district, Lampung Barat. Data required in this study is automatic rainfall and suspended sediment data.From the result of the measurement unit hydrograph analysis Air Anak watershed and Talang Bandung watershed average sediment obtained in Air Anak watershed in a 10 minutes of 28,068 ton/tahun, 30 minutes period of 24,875 ton/tahun an a 60 minutes period of 23,9047 ton/tahun. While at Talang Bandung watershed period 10 minutes 26,0315 ton/tahun, 30 minutes period of 25,3898 ton/tahun and 60 minutes period of 26,903 ton/tahun. Keywords : HST sedimentation, DAS Air Anak, DAS Talang Bandung. AbstrakSungai Air Anak dan Sungai Talang Bandung merupakan bagian hulu dari Sungai Way Besai yang merupakan sungai terbesar di Kabupaten Lampung Barat. Permasalahan yang serimg terjadi di daerah hulu adalah masalah erosi yang menyebabkan terjadinya sedimentasi. Adapun tujuan dari penelitian ini yaitu : untuk menganalisis Hidrograf Satuan Terukurnya, mengetahui besarnya laju sedimentasi dan mengetahui besarnya HST sedimen Sungai Air Anak dan Sungai Talang Bandung. Lokasi penelitian ini dilakukan di DAS Air Anak dan DAS Talang Bandung, Kecamatan Sumber Jaya, Kabupaten Lampung Barat. Data yang diperlukan dalam penelitian ini adalah data curah hujan otomatis dan data sedimen suspended. Dari hasil analisis Hidrograf Satuan Terukur (HST) Sedimen rerata yang didapat pada DAS Air Anak pada periode waktu 10 menitan sebesar 28,068 ton/tahun, periode waktu  30 menitan sebesar 24,875 ton/tahun dan periode waktu 60 menitan sebesar 23,9047 ton/tahun. Sedangkan pada DAS Talang Bandung periode waktu 10 menitan sebesar26,0315 ton/tahun, periode waktu 30 menitan sebesar 25,3898 ton/tahun dan periode waktu 60 menitan sebesar 26,903 ton/tahun.Kata kunci:HST sedimen, DAS Air Anak, DAS Talang Bandung.
Analisis Efisiensi dan Kehilangan Air pada Jaringan Irigasi Daerah Irigasi Sekampung Bunut Elok Budi Utami; Dyah Indriana Kusumastuti; Dwi Joko Winarno
Jurnal Rekayasa Sipil dan Desain Vol 8, No 4 (2020): Edisi Desember 2020
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Considering the bad impact of water loss which has an impact on its efficiency, the authors are interested in analyzing the efficiency and water loss in irrigation networks in the Sekampung Bunut Irrigation Area (DI). Efficiency and water losses were analyzed using the in-discharge discharge method. The data used in this analysis consist of primary data in the form of flow velocity data with current meters, irrigation channel cross-sections, temperature data, humidity data, then secondary data, namely data on the length of solar radiation and wind speed data. Loss of water in the secondary irrigation channel KR Irrigation Area (DI) of Sekampung Bunut lost an average of 17.15%. Meanwhile, the efficiency of the secondary channel in the Irrigation Area (DI) of Sekampung Bunut was 82.85%. The theoretical value of the average efficiency in the secondary channel KR is 90%. This shows that the amount of efficiency is still below the requirements of theoretical efficiency. One of the factors that cause water loss in the secondary channel in the Sekampung Bunut Irrigation Area is the evaporation factor that occurs along the irrigation channel. Keywords: Channel efficiency, water loss, water discharge.
Co-Authors Ahmad Zakaria Brigitha Cindy Sitanaya Dyah Indriana Kusumastuti ELOK BUDI UTAMI fadhel dzaki sembiring gustin andriani juwita novi yana Mutya Nivitha Panglima Jundulloh Siti Nurul Khotimah Wardatul Aini Putri