Article Per Year (5 Year)
p-Index From 2019 - 2024
0
P-Index
This Author published in this journals
All Journal TEKNIK Transmisi: Jurnal Ilmiah Teknik Elektro TRANSIENT
Joko Windarto
Jurusan Teknik Elektro Fakultas Teknik – Universitas Diponegoro Jl. Prof. Sudharto, SH – Tembalang, Semarang Jawa Tengah 50275
Education Engineering

Published : 4 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 4 Documents
Search

 1 
MODEL PREDIKSI TIGGI MUKA AIR SUNGAI KALI GARANG SEMARANG DENGAN JARINGAN SYARAF TIRUAN Windarto, Joko; Pawitan, Hidayat; Suripin, Suripin; J.P., M. Januar
TEKNIK Volume 29, Nomor 3, Tahun 2008
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (431.278 KB) | DOI: 10.14710/teknik.v29i3.1966

Abstract

One of the big rivers flowing in center of Semarang city is Garang river with watershed area about 220km2 and having characteristic such as big flood discharge and flash flood. Where flash flood on January25th 1990, caused more than 45 people died and goods losses until 8.5 billion rupiahs. One of some modelsto pedict water level is used black box model. Artificial Neural Network one’s of the black bock model . Inthis research, Artificial Neural Network (ANN) with back propagation method is used to predict waterlevel in Garang river where as input are rainfall in upstream of Garang river during two days, while asoutput is water level in downstream of Garang river for two hour later. Result of optimum predicting haveMSE 0.0037 and average of error 1.18 %.
Estimated Energy Consumption Of Electricity At APJ Cilacap In 2011-2016 Using Leap Software Pradana, AP Hendra; Windarto, Joko; Winardi, Bambang
Transmisi Vol 14, No 2 (2012): TRANSMISI
Publisher : Departemen Teknik Elektro, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (441.162 KB) | DOI: 10.12777/transmisi.14.2.61-67

Abstract

Electrical system in the Central Java Province is managed by PT PLN (Persero). The Electrical energy distribution is carried by the APJ (Service Area Network). One of APJ operating in the Central Java Province is APJ Cilacap, APJ Cilacap which is responsible to fulfill the electricity needs in the District of Cilacap and Kebumen. It makes APJ Cilacap as manager of the utility company should be able to provide the energy needs of electricity in both area. In addition of electrical energy demand’s problem, the problems belong to SAIDI, SAIFI and line losses also becomes a problem of electrical energy distribution. Therefore, it needs to have the electrical energy planning so that energy needs, SAIDI, SAIFI and line losses can be known for the following years. In Preparation of Planning estimates that the software used are LEAP (Long Range Energy Planning System) version 2008.0.0.96. In Planning Making using two scenarios namely BAU (Base As Usual) is the result of scenario planning is still the same trend with the growth of base year or there is no policy affected and RPTL PLN which is based on RUPTL PLN (General Planning of Electricity Supply) in period 2012-2016. From the results of planning using LEAP, projected electricity supply, BAU scenario growth in electrical energy consumption, has the average value of customers equal to the Household sector in UPJ Cilacap, Majenang, Sidareja, and Kroya that is 0.41% per year, while the commercial sector, Industrial, and General are 5.39%, 2.33%, 4.60% per year, while UPJ Kebumen and Kroya for each sector 0, 51%, 4.27%, 7.40%, 4.48% per year. While the projections for electricity supply, outage rate index (SAIDI SAIFI), and losses, RPTL PLN scenario of electricity energy consumption growth follows a policy document RUPTL PLN year 2009-2019. Policy scenarios in RPTL PLN where the electrical energy consumption projections estimates the population growth of 0.3% per year, PDRB growth of 4.5% -5.83% per year, Electrification Ratio in 2019 is targeted at 97.5%, and 4.99% growth in connected power per year. For Policy in making electric energy losses in 2019 is targeted at 5.65%. While in making target of outage Index (SAIDI SAIFI) predicted value of SAIDI in the year 2019 at 77,44 minute/consument/years and the value of SAIFI in 2019 by 4,4 times /consument/years. Keyword : Electricity, SAIDI SAIFI, Energy losses, Planning, LEAP
PENENTUAN KAPASITAS PEMBANGKIT LISTRIK TENAGA MINI HIDRO DI SUNGAI DAMAR KABUPATEN KENDAL Nugroho, Agung; Windarto, Joko; Febriansyah, Febriansyah; Badridduja, Ery
Transmisi Vol 15, No 1 (2013): TRANSMISI
Publisher : Departemen Teknik Elektro, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (258.227 KB) | DOI: 10.12777/transmisi.15.1.36-39

Abstract

Abstrak     Kebijakan energi nasional adalah mengarahkan upaya-upaya dalam mewujudkan keamanan pasokan energi.  Penyediaan tenaga listrik yang bersumber dari energi terbarukan di Indonesia merupakan keharusan.  Beberapa alasan adalah adanya keterbatasan energi listrik  yang berasal dari fosil untuk memenuhi kebutuhan listrik seluruh rakyat, dan kebutuhan listrik yang terus mengalami peningkatan seiring dengan peningkatan ekonomi rakyat, serta adanya ekspansi industri nasional. Propinsi Jawa Tengah bermaksud meningkatkan pengelolaan energi baru terbarukan (EBT), antara lain pengelolaan sumber daya air.  Sungai Damar Kabupaten Kendal secara fisik potensial sebagai lokasi pengembangan PLTM.  Pengolahan potensi sungai Damar adalah dengan penentuan kapasitas pembangkit listrik tenaga mini hidro sesuai dengan kondisi sungai Damar.  Mengacu penelitian, elevasi ketinggian antara calon bendung penenang dengan calon power house 144 m, dan tinggi efektif 135 m.            Debit aliran sungai Damar maximum 4,9 m3/dt, rerata 2,2 m3/dt, dan  minimum 300 lt/dt.  Daya yang mampu dibangkitkan pada debit maksimum 5184,83 KW, pada debit air 60% 2073,93 KW, dan pada debit air minimum 518,5 KW.  Kapasitas generator yang sesuai spesifikasi pabrik untuk PLTM sungai Damar sebesar 2454 KVA.   Kata kunci : pembangkit, debit, daya Abstract National energy policy has  to be  efforts to achieve security of energy supply. Electricity  supply from the renewable energy in Indonesia is very important.  Some of the reasons are the limitations of electrical energy  from fossil and increasing of the electricity for  the all the people,  the demand for electricity continues to increase along with the increase in people's economy, as well as the expansion of the national industry. Central Java Province intends to improve the management of renewable energy (EBT) as well as  the management of water resources. Damar River at  Kendal has   potential for the development of micro power plants. Processing potential is by determining the capacity of a mini hydro power plant in accordance with the conditions of the river Damar Referring to the study, the elevation height between the prospective weir  with potential power house is 144 m  and the effective height of 135 m. Damar maximum river flow is 4.9 m3/sec with average flow is 2.2 m3/sec. The minimum flow  is 300 liters / second. The Power that can be produced electricity around  5184.83 KW with maximum flow and will be produced 2073.93 KW at maximum flow  60%  . The minimum  flow can be produced electricity 518.5 KW. The capacity of the generator according to the manufacturer's specifications for micro power plants Damar is 2454 KVA . Keywords: power, flow, power
SIMULATOR EFISIENSI SISTEM PEMBANGKIT LISTRIK TENAGA UAP (PLTU) REMBANG Ristyanto, Anang Nungky; Windarto, Joko; Handoko, Susatyo
Transient: Jurnal Ilmiah Teknik Elektro TRANSIENT, VOL. 2, NO. 2, JUNI 2013
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (539.723 KB) | DOI: 10.14710/transient.2.2.234-240

Abstract

Abstrak Banyaknya pemakaian batu bara tentunya akan menentukan besarnya biaya pembangunan PLTU. Harga batu bara itu sendiri ditentukan oleh nilai panasnya (Kcal/Kg), artinya bila nilai panas tetap maka harga akan turun 1% pertahun. Sedang nilai panas ditentukan oleh kandungan zat SOx yaitu suatu zat yang beracun, jadi pada pembangkit harus dilengkapi alat penghisap SOx. Hal inilah yang menyebabkan biaya PLTU Batu bara lebih tinggi sampai 20% dari pada PLTU minyak bumi. Bila batu bara yang digunakan rendah kandungan SOx-nya maka pembangkit tidak perlu dilengkapi oleh alat penghisap SOx dengan demikian harga PLTU batu bara bisa lebih murah. Keunggulan pembangkit ini adalah bahan bakarnya lebih murah harganya dari minyak dan cadangannya tersedia dalam jumlah besar serta tersebar di seluruh Indonesia.Namun pemakaian batu bara saat ini juga perlu diperhitungkan karena batu bara merupakan salah satu dari Sumber Daya Alam yang tidak dapat diperbaharui, oleh karena alasan itu perlu adanya sistem yang dimana bertujuan untuk menghitung atau menganalisa dari proses PLTU batubara itu sendiri, sehingga lebih efisien.Dengan melakukan analisa perhitungan  pada PLTU, terutama PLTU Batubara, kita dapat membandingkan kerja optimal PLTU dan perkiraan input supaya menghasilkan output yang sesuai keingina. Kata Kunci : PLTU, Batu Bara, efisien  Abstract The amount of coal use will certainly determine the cost of construction of the plant. The price of coal itself is determined by the value of the heat (Kcal / Kg), means when the value of the heat will keep the price down 1% per year. Medium heat is determined by the value of SOx substances which is a toxic substance, so the plant should be equipped vacuum Sox. This is why the cost of coal power plant to 20% higher than the petroleum plant. When the coal used his low SOx content then do not need to be complemented by the power vacuum thus SOx power plant coal prices could be cheaper. Excellence plant is less costly fuel and oil reserves are available in large numbers and spread throughout Indonesia.However, the current use of coal also need to be considered because coal is one of the Natural Resources that can not be renewed, for that reason there is need for a system which aims to calculate or analyze from the coal power plant itself, making it more efficient.By performing analysis on the calculation of the power plant, primarily coal based power plant, we can compare the optimal labor input estimates that power plants and generate output as desired. Key words: PLTU, Coal, efficient
Co-Authors Anang Nungky Ristyanto AP Hendra Pradana Bambang Winardi Ery Badridduja Febriansyah Febriansyah Hidayat Pawitan M. Januar J.P. Nugroho, Agung S. Suripin Susatyo Handoko