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Tim Redaksi NOZZLE : Journal Mechanical Engineering Program Studi D3 Teknik Mesin Politeknik Harapan Bersama Jl. Mataram No.9, Pesurungan Lor, Kec. Margadana, Kota Tegal, Jawa Tengah 52147 Email : jurnal.nozzle@poltekharber.ac.id
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Nozzle : Journal Mechanical Engineering
Published by Politeknik Harapan Bersama Tegal
ISSN : 23016957     EISSN : 2776219X     DOI : -
Core Subject : Engineering,
Automotive Engineering Control & Systems Engineering Industrial & Manufacturing Engineering Mechanical Engineering Transportation
Nozzle : Jurnal Teknik Mesin (p-ISSN 2301-6957, e-ISSN 2776-219X) menerbitkan artikel penelitian, artikel konseptual, laporan kajian lapangan, praktik terbaik dan kebijakan teknik mesin di kancah nasional dan internasional (Lihat Fokus dan Ruang Lingkup ). Artikel jurnal ini diterbitkan setiap enam bulan sekali, yaitu pada bulan Januari dan Juli (2 edisi per tahun), dan diterbitkan oleh Politeknik Harapan Bersama Tegal. Editor hanya akan menerima naskah yang memenuhi format yang ditentukan. Nozzle : Journal Mechanical Engineering (p-ISSN 2301-6957, e-ISSN 2776-219X) publishes research articles, conceptual articles, reports field studies, the best practices and policies of mechanical engineering on a national and international stage (See Focus and Scope). The articles of this journal are published every six months, that is in January and July (2 issues per year), and published by the Politeknik Harapan Bersama Tegal. The editors will only accept the manuscripts which meet the assigned format. The journal publishes original papers in the field of Mechine but not limited to, the following scope: Mechine: Electronic Materials, Materials Engineering, Energy Manufacturing, Machinery, Electronic Instrumentation, Automation, Control, Embedded Systems, Mechatronics, Eectric power, Technology, Energy Storage Systems, Transmission, Energy Distribution, New Renewable Energy, and other related topics.
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 144 Documents
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Analisa Pengaruh Variasi Rasio Katalis Zeolit Terhadap Pirolisis Limbah Kabel dan Limbah Ban Zaenudin, Mohamad; Fadhlullah, Muhamad Vikri; Gamayel, Adhes; Priyadi, Muhammad Untung Zaenal
Nozzle : Journal Mechanical Engineering Vol 13, No 2 (2024): Nozzle : Journal Mechanical Engineering
Publisher : Politeknik Harapan Bersama Tegal

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30591/nozzle.v13i2.7840

Abstract

The accumulation of waste in the environment has become a critical issue, necessitating effective solutions, one of which is pyrolysis technology for treating waste such as tires and cables. Pyrolysis is a thermal degradation process that occurs under limited oxygen conditions, producing gas, tar, and char as byproducts. This study aims to evaluate the effect of varying zeolite catalyst ratios on the amount of oil produced and the production rate in the pyrolysis process of cable waste, tire waste, and their mixture. The catalyst ratios used in this study were 100, 200, and 300 grams, along with a control condition without a catalyst. The results indicated that the use of 300 grams of zeolite catalyst produced the highest oil yield, with 141 ml from cable waste, 233 ml from tire waste, and 238 ml from the mixed waste. In contrast, the absence of a catalyst yielded the lowest oil production, with 64 ml from cable waste, 85 ml from tire waste, and 137 ml from the mixed waste. These findings suggest that the use of zeolite catalyst significantly enhances both the production rate and quantity of oil compared to the condition without catalyst.
PENGARUH CAMPURAN BAHAN BAKAR PERTAMAX-ETANOL 20% TERHADAP EMISI MESIN BENSIN KAPASITAS 150CC Fitriyanto, Muhammad Tegar
Nozzle : Journal Mechanical Engineering Vol 13, No 2 (2024): Nozzle : Journal Mechanical Engineering
Publisher : Politeknik Harapan Bersama Tegal

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30591/nozzle.v13i2.7842

Abstract

Ethanol is an alternative fuel that can be used as a substitute for gasoline and as a gasoline fuel mixture that can be injected directly into the combustion chamber. The procedures to be carried out in the preparation stage are as follows: 1.Preparing firstx and ethanol. 2.Checking the Gas Analyzer equipment. 3.Prepare the equipment that will be used to conduct the test. Based on the test results, average calculations and data analysis conducted on exhaust emissions of 150 cc motorcycle fueled by firstx (P100) and firstx-ethanol (P80E20), it can be concluded that at 2000 rpm engine speed there is a decrease in HC, CO2, NOx emissions with the largest decrease in HC emissions by 5%. When the engine speed is 3000 rpm emissions that have decreased are CO, HC, O2 with the largest reduction value occurs in HC emissions by 144%. At 4000 rpm engine speed CO, HC emissions decreased and the largest decrease occurred in HC emissions by 49%. In the Exhaust Gas Temperature (EGT) graph also displays the results of a decrease at all engine speeds, with the largest decrease occurring at 4000 rpm engine speed of 18.3%.For this reason, further research is needed on the use of pertamax and pertamax-ethanol fuels on 150cc gasoline engine exhaust emissions, in order to produce better exhaust emissions for the future. In testing, don't forget to check the gas analyzer and change the engine oil first so that the engine in use runs smoothly without any obstacles and the results obtained are maximum.
Kekuatan Tarik Sambungan Las MIG CO2 Pada Baja Karbon Rendah ST 37 Dan SS 400 Dengan Sudut Kampuh V 60 Derajat Dan Variasi 60 dan 70 Ampere Hendrawan, Andre Budhi; Muzadi, aldi; -, Syarifudin; Ariyanto, Nur Aidi
Nozzle : Journal Mechanical Engineering Vol 13, No 2 (2024): Nozzle : Journal Mechanical Engineering
Publisher : Politeknik Harapan Bersama Tegal

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30591/nozzle.v13i2.7860

Abstract

Seiring dengan perkembangan dibidang konstruksi, pengelasan merupakan bagian yang tidak terpisahkan dari peningkatan industri, Karena mempunyai peranan yang sangat penting. Hampir pada setiap pembangunan suatu konstruksi dengan logam melibatkan unsur pengelasan. Salah satu jenis pengelasan yang dipakai untuk mengelas baja karbon adalah Gas Metal Arc Welding (GMAW). ST 37 dan SS 400 adalah salah satu jenis baja berkarbon rendah kurang dari 0,30 %, baja karbon rendah sangat baik sekali untuk disambung dengan proses pengelasan karena mempunyai sifat las yang baik (machinability). Adapun pengelasan MIG adalah pengelasan yang menggunakan gas pelindung CO2 saat proses pengelasan berlangsung. Metode eksperimental diterapkan pada pembentukan kampuh V 60 derajat, pembentukan spesimen, proses pengelasan MIG dan pengujian tarik. Penelitian ini bertujuan untuk mengetahui kekuatan tarik sambungan las MIG pada baja karbon rendah ST 37 dan SS 400 dengan sudut kampuh V 60 derajat dan variasi arus pengelasan 60 dan 70 ampere dengan posisi pengelasan 1G. Hasil dari penelitian ini menunjukan peningkatan pada kuat arus pengelasan berpengaruh terhadap nilai kekuatan tariknya. Nilai kekuatan tarik tertinggi terdapat pada variasi arus 70A yaitu sebesar 436,09 N/mm2. Dan nilai kekuatan tarik terendah terdapat pada variasi arus 60A yaitu sebesar 422,97 N/mm2.
ANALISIS PEMOTONGAN BAJA SS400 DENGAN KETEBALAN 20 mm MENGGUNAKAN PLASMA CUTTING CUT65 G-SB Wanandi, Sofian; Usman, Mukhamad Khumaidi
Nozzle : Journal Mechanical Engineering Vol 13, No 2 (2024): Nozzle : Journal Mechanical Engineering
Publisher : Politeknik Harapan Bersama Tegal

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30591/nozzle.v13i2.7790

Abstract

Dalam proses pemotongan merupakan salah satu proses utama, dimana setelah perancangan suatu produk maka tahapan selanjutnya ialah merealisasikan rancangan. Dalam merealisasikan rancangan terdiri dari beberapa proses, salah satunya proses pemotongan bahan, baik dalam bentuk pelat maupun pipa. Pemotongan dengan plasma cutting yang bertujuan untuk mendapatkan potongan optimal. seperti stainless steel, baja, tembaga, dan alumunium. Salah satu pengujian pemotongan material pada bahan baja ss400 dengan ketebalan 20mm dan kuat arus yang digunakan 50A, 55A dan 60 A terhadap kecepatan waktu pemotongan. Dari hasil proses pemotongan yaitu dari ujung ke ujung bahan sepanjang 200 mm dan tebal 20 mm menggunakan plasma cutting, pengujian dilakukan 3 kali setiap arus amperenya, pada pengujian arus 50 A, 55 A dan 60 A rata-rata waktu pemotongan 2 menit 44 detik, dengan kecepatan 1.21 mm/detik. Dan pada pengujian menggunakan kuat arus 60 A permukaan pemotongan cukup halus daripada hasil pemotongan menggunakan arus 50 A dan 55 A. Dapat disimpulkan bahwa semakin besar kuat arus yang digunakan hasil pemotongan halus.

Page 15 of 15 | Total Record : 144

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