Article Per Year (5 Year)
p-Index From 2019 - 2024
0.562
P-Index
This Author published in this journals
All Journal Jurnal Energi Dan Manufaktur Jurnal Mechanical Machine : Jurnal Teknik Mesin
Agung Sudrajad
Unknown Affiliation
Automotive Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

Published : 5 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 5 Documents
Search

 1 
Uji Performa Mesin Gokart 150 CC Dengan Variasi Beban dan Putaran Mesin Galang Muhamad Refli; Agung Sudrajad; Imron Rosyadi
JURNAL MECHANICAL Vol 12, No 1 (2021): Maret 2021
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/mech.v12.n1.202101

Abstract

AbstractGokart is a four-wheeled simple vehicle, which right now commonly being used as an early stage of racing cause it could train the reflexes of their driver, the decision making and other skills. Gokart usually powered by a two-stroke or four-stroke engine. In gokart racing, other than their driver, engine performance is such a big factor for the race result. The equipment for measure or achieve how much the performance above is called dynamometer, or commonly called “dynotest”. This research is focusing on knowing the engine performance (torque and power) on 150cc petrol-powered two-stroke engine with variation of main jet load of 155, 160 and 165 in 4000 Rpm to 13.000 Rpm. This research is conducted with chassis dynamometer test equipment to get the result of performance data measured by test equipment. From the result of the experiment on lower torque, the power output were so low and could reach maximum followed by engine’s rotation (Rpm), after reaching its peak rpm it will decreasing gradually on higher Rpms. From this research, the best torque is when using a 160 main jet with 16 Nm torque at 10.000 Rpm. Meanwhile, while using a 155 main jet, the torque were decreased by 6,25% and 6,87% while using a 165 main jet. Best power achieved when using a 160 main jet with power of 23,9 HP at 12.000 Rpm. Whereas with a 155 main jet, the power decreased by 4,6% and with a 165 main jet, the power decreased by 1,67%.Keywords: Chassis Dynamometer, Main Jet, Rpm, Torque and PowerAbstrakGokart adalah kendaraan roda empat yang sederhana, gokart biasanya menjadi prasyarat awal untuk kompetisi balap yang lebih besar karena dapat membantu menyiapkan reflek pembalap, mempercepat pengambilan keputusan dan keterampilan. Gokart biasanya digerakkan oleh mesin dua langkah atau empat langkah. Dalam balap gokart, selain pembalap, performa mesin juga sangat menentukan hasil dari balap gokart. Alat yang digunakan untuk mendapatkan atau mengukur besaran performa diatas biasa disebut dynamometer atau lebih dikenal dengan metode dynotest. Penelitian memfokuskan untuk mengetahui performa mesin (torsi dan daya) pada gokart bermesin bensin 2 langkah 150cc dengan variasi beban main jet 155, main jet 160 dan main jet 165 pada putaran mesin 4.000 RPM – 13.000 RPM. Penelitian dilakukan dengan menggunakan alat uji chassis dynamometer untuk mendapatkan data performa yang dapat terukur pada alat uji. Dari hasil eksperimen yang dilakukan pada putaran rendah torsi dan daya yang dihasilkan kecil dan terus akan mencapai maksimum mengikuti kenaikan putaran mesin, setelah mencapai maksimum akan menurun secara perlahan dan terus menurun pada putaran yang lebih tinggi. Hasil penelitian didapatkan torsi terbaik menggunakan main jet 160 dengan nilai torsi 16 Nm pada 10.000 RPM. Sedangkan torsi dengan main jet 155 turun 6,25% dan dengan main jet 165 turun 6,87%. Daya terbaik menggunakan main jet 160 dengan nilai daya 23,9 HP pada 12.000 RPM. Sedangkan dengan main jet 155 turun 4,6% dan dengan main jet 165 turun 1,67%.Kata kunci: Chassis dynamometer, main jet, RPM, torsi dan daya
Studi Perencanaan Atap Panel Surya di Hotel The Royale Krakatau Cilegon Zawahar Islamy; Agung Sudrajad
Jurnal Energi Dan Manufaktur Vol 7 No 2 (2014): Oktober 2014
Publisher : Department of Mechanical Engineering, University of Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (158.368 KB)

Abstract

Hotel The Royale Krakatau adalah salah satu hotel terbaik di Provinsi Banten yangmerupakan daerah yang beriklim tropis dan kaya akan pancaran cahaya matahari. Saat inihotel belum memanfaatkan sumber energi terbarukan alam sebagai salah satu sumberenergi pendukung di hotel. Studi ini merupakan studi kajian perencanaan pemasanganpanel surya yang diletakkan di atap bangunan hotel dengan luasan sekitar 400 m2 dengandesain mengikuti bentuk atap. Atap yang direncanakan dipasang panel surya, saat ini belumdimanfaatkan secara optimal dan hanya merupakan aksesoris bagi bangunan hotel. Dayayang dihasilkan dari pemasangan panel surya direncanakan akan mensubstitusi kebutuhansebagian energi listrik di hotel seperti penerangan lampu-lampu. Metode yang digunakanadalah metode observasi dan perhitungan empiris menyangkut daya output dan luasanpanel surya. Dari studi perencanaan yang dilakukan, daya output yang dihasilkan olehpemasangan panel surya adalah 10% dari kebutuhan total energi listrik di hotel.Kata kunci: Panel Surya, Energi Terbarukan, Hotel The Royale Krakatau CilegonHotel The Royale Krakatau is one of the best hotels in Banten Province which is a tropicalarea and rich in the light of the sun. Currently the hotel has not utilizing natural renewableenergy sources as one of the supporting energy source at the hotel. This study is the studyof planning the installation of solar panels placed on the roof of the hotel building with anarea of about 400 m2 with the design follows the shape of the roof. The planned roofmounted solar panels, currently not used optimally and is only an accessory to the hotelbuilding. The power generated from the solar panel installation is planned to substitute theelectric energy needs of the hotel such as lighting lamps. The method used are observationand empirical calculations regarding output power and extent of solar panels. From planningstudies conducted, the output power generated by the solar panel installation is 10% of thetotal electric energy needs at the hotel.Keywords: Solar Panels, Renewable Energy, Hotel The Royale Krakatau Cilegon
Studi Konsumsi Bahan Bakar Mesin Gokart 150cc dengan Variasi Nilai Oktan Bahan Bakar Abel Fuadi; Agung Sudrajad; Imron Rosyadi
JURNAL MECHANICAL Vol 12, No 1 (2021): Maret 2021
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/mech.v12.n1.202103

Abstract

Petrol fuel is a very inexpendable resource of energy to move or operate a machine to work as it could be. There were so many kinds of fuel such as pertamax, pertamax turbo, and avgas, with each other has a different octane number. Fuel consumption is affected by so many factor, few between them arethe difference between their octane number. The purpose of this study is to found the consumption value of 150cc gokart engine with an octane number variant. This experiment test the specific fuel consumption and air fuel ratio of the engine mentioned above when using different fuel like pertamax, pertamax turbo, and avgas, as all of them tested using dynotest, which connected to computer to track their power value of each fuel used linearly with Rpm increase, idle Rpm, 3000, 5000, 7000 and 9000 Rpm. For specific fuel consumption count based on time needed to emptying each of the fuel tested. From the research, found that specific fuel consumption value was 680 gram/Kwh for pertamax fuel, 357 gram/Kwh for pertamax turbo fuel, and 675 gram/Kwh for avgas. In this research, the factor that affects the specific fuel consumption is the difference between octane number of each fuel type 
STUDI KELAYAKAN KONDISI MINYAK TRAFO EXISTING Dwinanto Dwinanto; Agung Sudrajad; Rina Lusiani; Nandang Darmawan
Machine : Jurnal Teknik Mesin Vol 2 No 1 (2016): Machine : Jurnal Teknik Mesin
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (682.763 KB)

Abstract

Seiring dengan laju pembangunan produksi baja pada sinter plant area. Minyak transformator dalam memenuhi kebutuhan industri mengandung banyak senyawa-senyawa didalamnya. Untuk mengetahui permasalahan yang sering terjadi pada suatu minyak trafo, para peneliti sering menciptakan cara agar minyak trafo mempunyai daya isolasi yang baik. Salah satu cara yang digunakanya itu uji kuantitas minyak. Penelitian ini bertujuan untuk mempelajari karakteristik minyak trafo melalui pengujian Gas Chromatography Mass – Spectrometry (GCMS) dan Thermal Gravimetric Analysis (TGA) serta mobil Gas Chromatography (GC) untuk memisahkan dan mendeteksi jenis - jenis gas yang telah diekstrak dari minyak sampel. Dan baur tester Untuk menentukan Tegangan isolasi pada trafo, penggunaan jangka panjang minyak. Dari hasil pengujian GCMS dapat diketahui minyak trafo memiliki senyawa yang baik terdapat pada sample 2 karena tidak memiliki senyawa sulfur, pada pengujian TGA sample yang memiliki weigh loss yang kecil adalah sample 1 dan hasil kualitas GC sample 2 hasilnya sangat baik karena minyak dalam kondisi baru, dan hasil pengujian baur tester tegangan tembus yang baik terdapat pada sample 2 dan 3
Analisa Emisi Gas Buang dan Bunyi Mesin Gokart 150 cc dengan Variasi Bahan Bakar dan RPM Reza Anugrah Yulian; Agung Sudrajad; Imron Rosyadi
JURNAL MECHANICAL Vol 12, No 1 (2021): Maret 2021
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/mech.v12.n1.202102

Abstract

Gokart were so popular on competition scene in Indonesia, using a two-stroke engine with an engine specification being regulated in race regulation. But for now, not only a two-stroke engine, many four-stroke engine gokart race held as it was safer for their driver and environment. It is necessary to do research on emissions and noise emmision so that they can be used as a reference in karting competitions and to maintain the safety of many people involved in the race. Emmision gas test conducted using gas analyzer, while for the noise emmision test using sound level meter. Data taken when the gokart engine in standby, neutral gear. Fuel kinds are the variants of this research, as different fuel means different octane number, such as Pertamax (92), Pertamax Plus (98) and Avgas (102), with data being taken at idle rpm, 3000, 5000, 7000 and 9000 for each different fuel. Data desired were CO, HC, O2, CO2, NOX gas concentration, while for the noise were the decibel value produced by engine. Best result achieved when using Pertamax Plus (98) for emmision gas, which is having emmision gas concentration of CO, HC, O2, CO2, NOX, with a value of 2.25%, 6012.4ppm, 1.98%, 14.33%, and 30.8ppm respectively. Worst result achieved when using Avgas (102), which is having emmision gas concentration of CO, HC, O2, CO2, NOX, with a value of 1.636%, 8849ppm, 0.42%, 17.63%, dan 19ppm respectively. While the noise emmision value based by engine rotation speed, which the speed affects the noise emmision as 1-5 db increasing for each 2000 Rpm increase. While looking for an octane number as a reference, the noise emmision value increase from 1 until 2 for each increase of the fuel octane number.Keywords: Emmision gas, noise emmision, two-stroke engine, gas analyzer, sound level meter.
Co-Authors Abel Fuadi Dwinanto Dwinanto Galang Muhamad Refli Imron Rosyadi Nandang Darmawan Reza Anugrah Yulian Rina Lusiani Zawahar Islamy