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All Journal Rekayasa Mesin Jurnal Elemen Prosiding Seminar Nasional Teknik Mesin Jurnal Alat Berat
Razi, Misru
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Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Pengaruh Derajat Pengapian Terhadap Emisi Gas Buang Motor Bakar 6 Langkah Menggunakan Bahan Bakar Ethanol 99% Razi, Misru; Siswanto, Eko; Wijayanti, Widya
Seminar Nasional Teknik Mesin 2019: Prosiding Seminar Nasional Teknik Mesin 2019
Publisher : Politeknik Negeri Jakarta

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Abstract

Tujuan dalam penelitian ini adalah untuk mengetahui pengaruh variasi derajat pengapian terhadap kadar emisi gas buang CO, CO2, O2 dan HC pada motor bakar 6 langkah berbahan bakar etanol. Metode penelitian ini adalah eksperemental langsung dengan menguji pada objek yang dituju. Pengujian dilakukan pada motor 6 langkah berbahan bakar etanol dengan variasi sudut pengapian 240,260 dan 280. Setiap variasi di uji pada interval putaran 600 dari 2400 sampai 7200. Hasil penelitian menunjukan Sudut pengapian mempengaruhi kadar emisi gas buang CO, CO2, O2 dan HC yang di hasilkan pada pembakaran motor 6 langkah menggunkan bahan bakar etanol.Semakin maju derajat pengapian maka kadar emisi gas buang CO2 dan O2 semakin meningkat dan sebaliknya kadar emisi gas bunag CO dan HC semakin menurun.Sifat ethanol yang termasuk oxygenated fuel menyebabkan menghasilkan kandungan O2 yang lebih tinggi.
Pengaruh Derajat Pengapian terhadap Kinerja Motor Bakar 6 Langkah Berbahan Bakar Etanol Razi, Misru; Siswanto, Eko; Wijayanti, Widya
Jurnal Rekayasa Mesin Vol 10, No 3 (2019)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jrm.2019.010.03.10

Abstract

The six-stroke spark ignition engine has the potential to be developed as a new alternative to future motor fuel technology. The development of motor vehicles will be directly proportional to the use of rising fossil fuels. It is, therefore, necessary to have renewable alternative fuel, in which one of them is using ethanol fuel. Characteristics of the ethanol fuel are different from fossil fuels so the ignition timing is needed to be modified. The purpose of this study was to determine the effect of the ignition degree on the performance of a 6-stroke spark-ignition engine fuel using ethanol. This research is worked out directly by experimental and testing on the intended object. The test was carried out on an ethanol-fueled 6-step spark ignition engine with variations in the ignition angle at 240,260 and 280. Each variation was tested for a rotation interval of 600 rpm from 2400 rpm to 7200 rpm. The results show that ignition degree greatly affects performance. The ignition angle of 280 produced better torque, effective power, effective specific fuel consumption and effective thermal efficiency than those of the ignition degrees at 240 and 260 (standard angle ). This is due to the use of ethanol fuel which has a slower combustion speed. Based on this fact, it is necessary to advance the ignition angle so that the explosive power of the air-fuel mixture is increasing. Low fuel consumption and better effective thermal efficiency were observed for 280 ignition degrees compared to 240 and 260 ignition degrees.
Rancang Bangun Special Tool Cek Lokasi Kebocoran Kompresi Pada Engine SAA6D107E-1 Arwin, Arwin; Zulkifli, Zulkifli; Romadhon, Muhammad Iqbal; Yusrina, Yasmin Zulfati; Razi, Misru; Khalik, Abdul
JURNAL ALAT BERAT Vol 2 No 1 (2025): Januari 2025
Publisher : Politeknik Negeri Balikpapan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32487/jab.v2i1.31

Abstract

Salah satu perusahaan PT United Tractors yang terletak di Banjarmasin, Kalimantan Selatan mempunyai beberapa unit yang menggunakan engine diesel. Populasi unit diesel Komatsu lebih banyak dibandingkan yang lain, sehingga dilakukannya pekerjaan pada unit Komatsu lebih sering dibandingkan yang lainnya. Ada beberapa pekerjaan yang dilakukan yaitu periodic service,remove & install, minor trouble shooting, dan overhaul. Penulis menemukan permasalahan saat melakukan troubleshooting, yaitu ketika mengetahui adanya kebocoran kompresi, tetapi belum tahu lokasi komponen mana yang mengalami kerusakan. Berdasarkan permasalahan yang ada peneliti merancang sebuah alat untuk melakukan pengecekan lokasi kebocoran kompresi pada engine SAA6D107E-1. Metodologi penelitian ini meliputi identifikasi masalah, perancangan alat, pembuatan alat, dan pengujian alat. Pengambilan data tersebut dilakukan di PT. United Tractor,Tbk Banjarmasin Kalimantan Selatan. Penelitian ini menjelaskan bagaimana proses pembuatan special tool cek lokasi kebocoran kompresi pada engine SAA6D107E-1, mengetahui penggunaan alat, analisa waktu, analisa safety, man power dan cost dari penggunaan alat. Dari hasil pengujian didapatkan hasil waktu sebesar 50% lebih efisien, kemudian analisa safety sebesar 36%, selanjutnya tenaga man power yang dipakai hanya 1 orang dan perbandingan biaya juga jauh lebih murah jika menggunakan alat tersebut.
ANALISIS KERUSAKAN KOMPONEN FINAL DRIVE CATERPILLAR EXCAVATOR 329 DL Razi, Misru; Munawir, Munawir; Khalik, Abdul; Arwin, Arwin
ELEMEN : JURNAL TEKNIK MESIN Vol. 12 No. 1 (2025)
Publisher : POLITALA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34128/je.v12i1.304

Abstract

The purpose of the research is to analyze the functional final drive components to increase torque. To find out more in-depth about how to fix the damage to the final drive. This study uses a field observation method by making direct observations by looking for the cause of damage, and how to overcome damage to the final drive components, and conducting and question-and-answer method so that the problem that occurs in the final drive is found. Damage to the final drive of the CAT 329 DL excavator is due to this unit traveling a long distance. As a result, the input shaft components on the final drive are worn out, causing damage that results in noise on the front of the final drive when running. The input shaft component is damaged and must be replaced with a new one; if left unchecked, it will cause damage to other components. Damage to the input shaft makes the track unable to move. Components present in the planetary gear
ANALISIS KERUSAKAN KOMPONEN MOTOR STARTER UNIT EXCAVATOR 329 DL CATERPILLAR Munawir, Munawir; Razi, Misru; Khalik, Abdul
ELEMEN : JURNAL TEKNIK MESIN Vol. 12 No. 1 (2025)
Publisher : POLITALA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34128/je.v12i1.309

Abstract

Machines require an electrical system to function and operate. The electrical system consists of batteries. The battery provides electric current to other electrical components. Machines that can produce large twisting moments require a starter component, as previously known. Electric motors are usually equipped with a solenoid to drive the pinion gear to a ring gear mounted around a flywheel, or flywheel, mounted on the crankshaft. Results of visual inspections carried out on all parts of the Motor Stater excavator 329DL. There was no wear or damage found on the Caterpillar. After carrying out a visual inspection, take measurements of the parts. The starter motor, after carrying out measurements, shows results that are under the specifications based on SIS/GRPTS.
Co-Authors A.A. Ketut Agung Cahyawan W Abdul Khalik Arwin Arwin Eko Siswanto Munawir Munawir Romadhon, Muhammad Iqbal Widya Wijayanti Yusrina, Yasmin Zulfati Zulkifli Zulkifli