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All Journal Infotekmesin Scientific Journal of Mechanical Engineering Kinematika JTAM ROTARY
Misbachudin, Misbachudin
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Automotive Engineering Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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ANALISIS PROSES PIROLISIS LIMBAH PLASTIK HDPE DAN PET: PENGARUH TEMPERATUR DAN WAKTU REAKSI DALAM UPAYA DAUR ULANG PLASTIK Sabitah, A yan; Ardiyat, Ichwan Noor; Misbachudin, Misbachudin; Wusko, Ikna Urwatul; Ningsih, Rahma Pitria
Scientific Journal of Mechanical Engineering Kinematika Vol 9 No 1 (2024): SJME Kinematika Juni 2024
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v9i1.318

Abstract

Plastic waste is a significant environmental challenge, but its management is still not fully effective. Common methods such as garbage disposal, combustion, and recycling have their limitations, especially the release of harmful compounds during low-temperature plastic burning. Therefore, research continues to look for better solutions. One promising approach is pyrolysis, a process in which plastic molecules break down at high temperatures in an inert gas environment. Pyrolysis produces solid, liquid, and gas products, with liquids potentially functioning as biofuels after further repairs. The study discussed the influence of temperature and time on the pyrolysis of HDPE and PET plastics. The results showed that temperature is a critical factor, with a limited reaction temperature between 500 °C and 700 °C. Results of the pyrolyse process include tar/liquid and char/ solid residues. Strangely, 3 kg HDPE produce the highest amount of tar, about 973 ml, while 3 kg PET produce the least, about 89 ml. Overall, achieving a uniform heat distribution and optimal temperature is crucial to improving the efficiency and quality of the pirolysis product.
PENGARUH VARIASI KATALIS MUFFLER SEPEDA MOTOR TERHADAP HASIL GAS BUANG Misbachudin, Misbachudin; Nur, Raybian; Wusko, Ikna Urwatul
JTAM ROTARY Vol 5, No 1 (2023): JTAM ROTARY
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jtam_rotary.v5i1.8349

Abstract

Emisi gas buang dipengaruhi oleh jenis bahan bakar dan jenis kendaraan yang digunakan, oleh karena itu untuk mengurangi kadar emisi gas buang dapat dilakukan dengan cara menyempurnakan pembakaran dan  menambahkan catalytic converter pada knalpot kendaraan. Penelitian ini membuat alat catalytic converter dengan memvariasikan penggunaan material logam agar dapat mengetahui pengaruh emisi gas buang pada sepeda motor. Metode penelitian yang digunakan adalah jenis ekperimental. Variabel yang digunakan yakni stainless steel, tembaga, aluminium, dan fiberglass. Hasil pengujian pada rpm 3000 menunjukkan bahwa adanya penurunan kadar CO2 1,24%, dan juga HC sebesar 141,7 ppm CO2 3,1%, ini terjadi pada katalis tembaga. Pada katalis aluminium pada rpm yang sama terjadi penurunan kadar hc sebesar 143,7 ppm dan kadar CO turun sebesar 1,15% karbondioksida turun sebesar 2,9%. Pada katalis spongesteel pada rpm 3000 terjadi penurunan kadar CO sebanyak 1,49%, sedangkan untuk kadar HC terjadi penurunan 166,34 ppm dan karbondioksida turun 3,47%. Sedangkan untuk katalis fiberglass kadar co menurun sebesar 1,21% dan kandungan HC sebesar 154,4 ppm, dan kadar karbondioksida turun sebesar 3,04%. Exhaust Emissions Are Substances In The Form Of Gas Or In The Form Of Other Particulates Expelled Through The Exhaust And Is The Residual Result Of Fuel Combustion In The Combustion Chamber. Exhaust Emissions Are Influenced By Several Things, Including The Type Of Fuel Used, And The Type Of Vehicle Used And The Age Of The Machine. Therefore To Reduce The Levels Of Exhaust Emissions Can Be Done In Several Ways, Namely By Perfecting Combustion And Also By Adding A Catalytic Converter To The Exhaust Of The Vehicle. The purpose of this research is to make a catalytic converter with a variety of metals in order to determine the effect of exhaust emissions on motorcycles. The research method used is the type of experiment. Variables Used Are Stainless Steel, Copper, Aluminum, And Fiberglass. Based on the Emission Test, it can be concluded that the results of this study at 3000 rpm indicate that there is a decrease in CO2 levels of 1.24%, and also Hc by 141.7 ppm CO2 3.1%, this occurs in the copper catalyst. In the aluminum catalyst at the same Rpm there was a decrease in Hc content of 143.7 ppm and a decrease in co content of 1.15% carbon dioxide decreased by 2.9%. In Spongesteel Catalyst At 3000 Rpm there was a decrease in CO levels of 1.49%, while for HC levels there was a decrease of 166.34 ppm and carbon dioxide decreased by 3.47%. As for the Fiberglass Catalyst, the CO content decreased by 1.21% and the HC content was 154.4 ppm, and the carbon dioxide content decreased by 3.04%.
PENGARUH JENIS BASE OIL TERHADAP SUHU MESIN DAN KONSUMSI BAHAN BAKAR PADA MESIN 4-TAK 100 CC Oktarinda, Muhammad Dwiki; Misbachudin, Misbachudin; Nur, Raybian
JTAM ROTARY Vol 6, No 2 (2024): JTAM ROTARY
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jtam_rotary.v6i2.13183

Abstract

Untuk memastikan efisiensi yang optimal dari tenaga yang dihasilkan melalui pembakaran, diperlukan sistem pelumasan yang tepat. Secara umum, fungsi utama pelumas ialah sebagai perantara mengurangi gesekan dan keausan. Sistem pelumasan pada mesin kendaraan penting, karena kualitas sistem pelumasan mempengaruhi kinerja dan umur mesin. Penelitian ini bertujuan untuk menganalisis pengaruh variasi jenis base oil terhadap suhu mesin dan konsumsi bahan bakar pada mesin mobil hemat energi. Penelitian dilakukan dengan menggunakan tiga jenis base oil yaitu oli mineral grup 2, oli semi sintetik, dan oli full sintetik dengan viskositas SAE 10W-30. Pengujian dilakukan pada mesin bensin 4 tak berkapasitas 100cc dengan bahan bakar pertamax. Pengukuran dilakukan pada putaran idle ±1500 rpm selama 10 menit. Hasil penelitian menunjukkan bahwa jenis base oil berpengaruh terhadap suhu mesin dan konsumsi bahan bakar. Oli full sintetik memberikan performa terbaik dengan suhu mesin yang lebih rendah dan konsumsi bahan bakar yang lebih efisien dibandingkan dengan oli mineral grup 2 dan oli semi sintetik. To ensure optimal efficiency from the power generated through combustion, an appropriate lubrication system is necessary. In general, the main function of lubricants is to act as intermediaries in reducing friction and wear.  The lubrication system in vehicle engines is crucial as its quality affects the performance and lifespan of the engine. This study aims to analyze the influence of variations in base oil types on engine temperature and fuel consumption in energy-efficient car engines. The research was conducted using three types of base oils: Group 2 mineral oil, semi-synthetic oil, and full synthetic oil, all with a viscosity of SAE 10W-30. Testing was performed on a 100cc 4-stroke gasoline engine using pertamax fuel. Measurements were taken at an idle speed of approximately 1500 rpm for 10 minutes. The results showed that the type of base oil significantly affects engine temperature and fuel consumption. Full synthetic oil provided the best performance with lower engine temperatures and more efficient fuel consumption compared to Group 2 mineral oil and semi-synthetic oil. 
PENGARUH PENGUAPAN BAHAN BAKAR MINYAK TERHADAP KONSUMSI BAHAN BAKAR PADA SEPEDA MOTOR 4 TAK Misbachudin, Misbachudin; Dinata, Ryan; Sabitah, A’yan
JTAM ROTARY Vol 5, No 2 (2023): JTAM ROTARY
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jtam_rotary.v5i2.10107

Abstract

Penelitian ini bertujuan untuk mengetahui penggunaan bahan bakar yang dikonsumsi pada motor bensin 4 tak dengan merancang dan menerapkan sistem aerator untuk menguapkan bahan bakar. Metode yang dipakai pada penelitian ini adalah dengan metode pengujian (experimental method). Yaitu dengan cara memanfaatkan  aerator  yang di implementasikan pada sistem bahan bakar sepeda motor 4 tak untuk mempercepat terjadinya proses penguapan pada bahan bakar minyak. Variabel yang digunakan adalah jenis bahan bakar pertalite dan pertamax, yang diuji dengan menggunakan aerator dan tanpa aerator pada putaran mesin sekitar 1200 rpm tanpa pembebanan selama 3 menit. Hasil pengujian menunjukkan bahwa bahan bakar yang terpakai dengan menggunakan aerator untuk penguapan dapat mengurangi konsumsi bahan bakar. Pertalite menggunakan aerator mengalami penurunan sebesar 2,34 ml/min atau 50% sedangkan bahan bakar pertamax mengalami penurunan sebesar 1,44 ml/min atau 44%. The aim of this research is to determine the fuel consumption of internal combustion engines by designing and implementing an aerator to enhance fuel evaporation. The method employed in this study is experimental, using an aerator integrated into the fuel system of a 4-stroke motorcycle engine to accelerate the fuel evaporation process. The variables used are Pertalite and Pertamax fuels, which were tested both with and without the aerator at an engine speed of approximately 1200 rpm without any load for 3 minutes. The test results indicate that using an aerator for evaporation can reduce fuel consumption. Pertalite fuel with an aerator experienced a 2,34 ml/min 50% reduction, while Pertamax fuel with an aerator experienced a 1,44 ml/min 44% reduction.
PENGARUH PENAMBAHAN VARIASI MODEL CATALYST PADA KNALPOT MOTOR VIXION 150 CC TERHADAP STANDAR EMISI GAS BUANG DAN KEBISINGAN Nur, Raybian; Misbachudin, Misbachudin; Wusko, Ikna Urwatul
JTAM ROTARY Vol 5, No 1 (2023): JTAM ROTARY
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jtam_rotary.v5i1.8350

Abstract

Sepeda motor merupakan alat transportasi yang digerakkan oleh mesin (motor). Jenis transportasi ini banyak digunakan karena harganya yang murah dan mudah digunakan. Sepeda motor umumnya menggunakan bahan bakar bensin. Motor bensin 4 langkah adalah motor bensin yang melakukan usaha atau kerja diperlukan 4 langkah gerakan piston dan 2 putaran poros engkol. Catalyst adalah salah satu teknologi yang digunakan untuk mereduksi gas buang CO menjadi CO2 dan HC menjadi H2O, pada saat dikeluarkan pada knalpot. Knalpot katalis B yang lebih bagus dalam mereduksi emisi gas CO disetiap rpm nya. Dan dengan menggunakan knalpot katalis C berhasil menyerap emisi gas buang HC yang signifikan pada rpm 3000 dan 5000. Penambahan katalis pada knalpot berhasil mereduksi kebisingan. Dari ketiga model variasi katalis yang divariasi, knalpot katalis B yang paling baik dalam mereduksi kebisingan. dikarena bentuk katalisnya yang dapat lebih baik menghambat aliran pembuangan pada knalpot karena itulah suara yang keluar jadi sedikit lebih senyap. A motorbike is a means of transportation that is driven by an engine (motor). This type of transportation is widely used because it is cheap and easy to use. Motorcycles generally run on gasoline. A 4-stroke gasoline engine is a gasoline engine that does work or work that takes 4 steps of piston movement and 2 rotations of the crankshaft. Catalyst is one of the technologies used to reduce CO exhaust gas to CO2 and HC to H2O when released in the exhaust. The catalyst B exhaust is better at reducing CO gas emissions at every rpm. And by using an exhaust catalyst C managed to absorb significant HC exhaust emissions at 3000 and 5000 rpm. The addition of a catalyst to the exhaust managed to reduce noise. Of the three models of varied catalyst variations, exhaust catalyst B is the best at reducing noise. because the shape of the catalyst can better inhibit the flow of exhaust in the exhaust, that's why the sound that comes out is a little quieter.
ANALISIS PENGGUNAAN PERTALITE DAN BAHAN BAKAR GAS TERHADAP SUHU MESIN SEPEDA MOTOR 100 CC Ardiyat, Ichwan Noor; Sabitah, A’yan; Misbachudin, Misbachudin
JTAM ROTARY Vol 5, No 2 (2023): JTAM ROTARY
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jtam_rotary.v5i2.8431

Abstract

Penelitian ini bertujuan untuk mengetahui perbandingan suhu mesin pada sepeda motor Honda Supra Fit 100 cc tahun 2005 dengan penggunaan bahan bakar minyak pertalite dan bahan bakar gas LPG. Metode yang digunakan dalam penelitian ini adalah eksperimental dan studi pustaka dengan menggunakan parameter Thermo Gun. Dari hasil pengujian suhu mesin bahan bakar gas LPG didapat 420c pada 2000 rpm dan suhu mesin berbahan bakar pertalite didapat 520c pada 2000 rpm. Dan dapat disimpulkan bahwa suhu mesin menggunakan bahan bakar LPG lebih rendah dibandingkan dengan bahan bakar minyak Pertalite. This study aims determine to compare the engine temperature of a 100 cc Honda Supra Fit motorcycle at 2005 using Pertalite and LPG. The method used in this research is experimental and literature study using the Thermogun parameter. From the results of testing the temperature of the LPG fuel engine, it was obtained 420 oc at 2000 rpm and the temperature of the Pertalite fueled engine was obtained 520 oc at 2000 rpm. And it can be concluded that the temperature of the engine using LPG fuel is lower than Pertalite.
Optimalisasi Ko-Pirolisis Campuran Eceng Gondok dan Batubara Muda Terhadap Produksi Bio-Oil, Gas, dan Char Sabitah, A'yan; Noor Ardiyat, Ichwan; Misbachudin, Misbachudin
Infotekmesin Vol 16 No 2 (2025): Infotekmesin: Juli 2025
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v16i2.2464

Abstract

One of the abundant biomass resources in Indonesia is water hyacinth, which can be converted into energy through pyrolysis. This research explores the effect of temperature on the co-pyrolysis process of a mixture of water hyacinth and young coal to produce bio-oil, gas, and char. The method used is pyrolysis with temperature variations on the mixture of water hyacinth and young coal in a batch reactor.  The testing was conducted at a temperature of 400°C with various compositions of water hyacinth and coal mixtures, and the resulting products in the form of bio-oil, gas, and char were then measured to determine the yield. The research results show that in the pyrolysis of pure water hyacinth, gas production reaches 120 grams, bio-oil 108 grams, and char 72 grams. The addition of coal up to 30% increases char production to 113 grams, but decreases gas production to 94 grams and bio-oil to 87 grams.  The gas produced is dominated by methane (67.315%) in a mixture of 70% water hyacinth and 30% coal, while hydrogen reaches 33.721% in pure water hyacinth.
Co-Authors Ardiyat, Ichwan Noor Dinata, Ryan Ningsih, Rahma Pitria Noor Ardiyat, Ichwan Nur, Raybian Oktarinda, Muhammad Dwiki Sabitah, A'yan Wusko, Ikna Urwatul