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All Journal Jurnal Energi Dan Manufaktur Turbo : Jurnal Program Studi Teknik Mesin Logic : Jurnal Rancang Bangun dan Teknologi Jurnal Pendidikan Teknik Mesin Undiksha JURPIKAT (Jurnal Pengabdian Kepada Masyarakat) Eksergi: Jurnal Teknik Energi Formosa Journal of Science and Technology (FJST) Jurnal Teknik Mesin, Industri, Elektro dan Informatika Journal of Creative Student Research Jurnal Teknik Mesin Venus: Jurnal Publikasi Rumpun Ilmu Teknik Mars: Jurnal Teknik Mesin, Industri, Elektro dan Ilmu Komputer KOMET
Ahmad Hanif Firdaus
Politeknik Negeri Malang
Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Dentistry Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mechanical Engineering Public Health Social Sciences Transportation

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Pengaruh Penambahan Zat Aditif Pada Campuran Bahan Bakar Bensin – Bioethanol Terhadap Specific Fuel Consumption Monasari, Ratna; Firdaus, Ahmad Hanif; Qosim, Nanang
Jurnal Pendidikan Teknik Mesin Undiksha Vol 9, No 1 (2021)
Publisher : UNIVERSITAS PENDIDIKAN GANESHA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jptm.v9i1.31797

Abstract

Pemanfaatan energi terbarukan di Indonesia masih tergolong rendah dibandingkan dengan sumber energi tak terbarukan dari minyak bumi, batu bara, maupun gas alam. Dengan jumlah energi tak terbarukan yang terbatas mendorong untuk mengembangkan penggunaan bahan bakar alternatif. Saat ini bioetanol merupakan salah satu bahan bakar alternatif yang sedang dikembangkan sebagai pengganti maupun campuran bahan bakar bensin, yang dikenal sebagai etanol anhidrat yang memiliki konsentrasi diatas 96%. Campuran bioetanol memberikan pengaruh terhadap peningkatan bilangan oktan dan mampu mengurangi emisi gas buang yang dihasilkan. Untuk mendapatkan efek yang lebih optimal dalam konsumsi bahan bakar zat aditif seperti oxygenated cyclohexanol ditambahkan pada campuran bahan bakar. Studi dilakukan pada perbandingan bahan bakar E5 sampai E15 dengan penggunaan aditif tersebut. Pengujian konsumsi bahan bakar dilakukan pada mesin satu silinder spark ignition dengan posisi bukaan throttle 100%. Terdapat sensor pada bagian tanki bahan bakar untuk menghitung specific fuel consumption (SFC) dengan variasi kecepatan mesin. Penelitian ini bertujuan untuk melihat pengaruh penambahan zat aditif pada campuran bahan bakar terhadap konsumsi bahan bakar.Kata kunci: bensin; bioetanol; emisi gas buang; zat aditif.The use of renewable energy in Indonesia is still low compared to non-renewable energy sources from petroleum, coal, and natural gas. The limited amount of non-renewable energy encourages developing the use of alternative fuels. Currently, bioethanol is an alternative fuel that is being developed as a substitute or mixture of gasoline fuel, known as anhydrous ethanol which has a concentration above 96%. The bioethanol mixture has an effect on increasing the octane number and is able to reduce the resulting exhaust gas emissions. To get a more optimal effect on fuel consumption, additives such as oxygenated cyclohexanol are added to the fuel mixture. Studies were carried out on the comparison of fuel E5 to E15 with the use of these additives. The fuel consumption test was carried out on a single-cylinder spark-ignition engine with a 100% throttle opening position. There is a sensor on the fuel tank to calculate the specific fuel consumption (SFC) with variations in engine speed. This study aims to determine the effect of adding additives to the fuel mixture on fuel consumption.Keywords : fuel; bioethanol; exhaust gas emissions; additives. DAFTAR RUJUKANAbikusna, S., Sugiarto, B., & Suntoro D. (2017). Low Grade Bioethanol for Fuel Mixing on Gasoline Engine Using Distillation Process. in AIP Conference Proceedings. AIP Publishing.Abikusna, S. (2018). The Effect of Additive on Combustion Characteristics and Cycle to Cycle Variations on SI Engine Fueled by Gasoline and Bioethanol, Technology organic and inorganic substances. P. 27-37. Doi: 10.15587/1729-4061.2018.147585Abikusna, S., B. Sugiarto, & Zulfan, A. (2017). Fuel consumption and emission on fuel mixer low-grade bioethanol fuelled motorcycle. in MATEC Web of Conferences. EDP Sciences.Costa, R. C., &  Sodré, J.R.  (2011). Compression ratio effects on an ethanol/gasoline fuelled engine performance. Applied Thermal Engineering, 31(2): p. 278-283.de Melo, T.C.C., et al., 2012. Hydrous ethanol–gasoline blends–Combustion and emission investigations on a Flex-Fuel engine. Fuel, 97: p. 796-804.Costa, R.C. & Sodré, J.R. (2009) . Hydrous Ethanol Vs. Gasoline-Ethanol Blend: Engine Performance and Emissions. International Journal of FuelGao, J. D. J., &  Huang, Z. (2007). Spray Properties of Alternative Fuels: A Comparative Analysis of Ethanol–Gasoline Blends and Gasoline. Fuel. 86(10): p. 1645-1650.Keith, O., & Trevor, C. (1995). Automotive fuels reference book. Society of Automotive Engineers, Inc. Warrendale,  p. 487.Gholamhassan, N. B. G., Yusaf, T. Safieddin, S. M., & Ardebili, R.M. (2015). Optimization of performance and exhaust emission parameters of a SI (spark ignition) engine with gasoline-ethanol blended fuels using response surface methodology. Elsevier, energy xxx: p. 15.Jang, S. H., & Choi, J. H. (2016). Comparison of fuel consumption and emission characteristics of various marine heavy fuel additives. Applied Energy, 179, 36–44. https://doi.org/10.1016/j.apenergy.2016.06.122Monasari, R., Abikusna, S., Sugiarto, B., & Ajiseno, B. (2018). IOP Conference Series: Earth and Environmental Science Analysis of emission gas and fuel consumption on SI engine fueled with low-grade bioethanol and oxygenated cycloheptanol additive Analysis of emission gas and fuel consumption on SI engine fueled with low-grade bioethanol and oxygenated cycloheptanol additive. 105, 12058. https://doi.org/10.1088/1755-1315/105/1/012058Srinivasan, C. A., &  Saravanan, C. (2010). Study of Combustion Characteristics of an SI Engine Fuelled with Ethanol and Oxygenated Fuel Additives. Journal of Sustainable Energy & Environment. 1(2): p. 85-91.Sugiarto, B. (2002) Motor Pembakaran Dalam. Jakarta: Universitas Indonesia. ISBN 979- 97726-7-2.Thangavelu, S. K., Ahmed, A. S., & Ani, F. N. (2016). Review on Bioethanol as Alternative Fuel for Spark Ignition Engines. Renewable and Sustainable Energy Reviews. 56: p. 820-835Zhao, L., Wang, X., Wang, D., & Su, X. (2020). Investigation of the effects of lean mixtures on combustion and particulate emissions in a DISI engine fueled with bioethanol-gasoline blends. Fuel, 260, 116096. https://doi.org/10.1016/j.fuel.2019.116096
Pengaruh Kalium Hidroksida Terhadap Emisi Gas Buang Motor Bensin Berbahan Bakar Biogas Firdaus, Ahmad Hanif; Monasari, Ratna; Qosim, Nanang; Astuti, Fina Andika Frida
Jurnal Pendidikan Teknik Mesin Undiksha Vol 9, No 1 (2021)
Publisher : UNIVERSITAS PENDIDIKAN GANESHA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jptm.v9i1.31545

Abstract

Kebutuhan alat transportasi menjadi sesuatu hal yang sangat penting untuk mendukung peningkatan mobilitas orang, barang, dan jasa di era globalisasi seperti saat ini. Penggunaan alat transportasi berbasis motor bakar dengan bahan bakar fosil sebagai sumber energi utama memberi dampak yang sangat serius jika dibiarkan. Bahan bakar fosil adalah energi tak terbarukan yang jumlahnya di alam pun semakin menipis yang suatu saat akan habis dan jika digunakan dapat menghasilkan emisi gas buang yang dapat merugikan kesehatan dan lingkungan. Saat ini terdapat perkembangan yang cukup signifikan dalam usaha menciptakan dan menemukan bahan bakar alternatif, biogas menjadi salah satunya. Namun, biogas murni yang dihasilkan masih banyak mengandung zat pengotor yang menganggu dalam proses pembakaran sehingga perlu dilakukan pemurnian. Salah satu teknik pemurnian biogas adalah dengan menggunakan larutan Kalium Hidroksida (KOH). Penelitian ini bertujuan untuk mengetahui efek kalium hidroksida terhadap emisi gas buang mesin bensin berbahan bakar biogas. Metode yang digunakan dengan eksperimen secara langsung. Variabel bebas dalam penelitian ini adalah variasi konsentrasi Kalium Hidroksida (KOH) sebesar 5 M, 10 M, dan 15 M pada putaran mesin 5500, 5700, 5900, 6100, 6300 dan 6500 rpm. Variabel terkontrolnya bukaan throttle 100%, waktu pengapian 39° sebelum TMA (Titik Mati Atas) dan laju alir KOH 1 ml/s, variable terikatnya adalah emisi gas buang CO dan HC. Dari hasil penelitian diketahui bahwa semakin besar konsentrasi KOH yang ditambahkan akan menghasilkan emisi gas buang yang minimal, yaitu pada penambahan KOH dengan konsentrasi 15 M yang menghasilkan emisi gas buang CO sebesar 0,237 (% vol) dan HC 84 (ppm vol).Kata kunci: Biogas; Emisi; Kalium Hidroksida; Mesin Bensin.The use of engine-fuel-based transportation with fossil fuels as the main energy source has a very serious impact. Fossil fuels are non-renewable energy whose numbers in nature are depleting which one day it will run out and if used can produce exhaust gas emissions that can harm health and the environment. Currently there are significant developments in the effort to create and find alternative fuels, biogas being one of them. However, the pure biogas produced still contains many impurities that interfere with the combustion process so that it needs to be purified. One of the biogas purification techniques is by using a solution of potassium hydroxide (KOH). This study aims to determine the effect of KOH on the exhaust gas emissions of biogas fueled otto engines. The method using direct experimentation, independent variable were the variation in the concentration KOH of 5 M, 10 M, and 15 M at engine speed of 5500, 5700, 5900, 6100, 6300 and 6500 rpm. The controlled variables were 100% throttle opening, the ignition time was 39 ° before TDC (Top Dead Centre) and the KOH flow rate was 1 ml / s, the dependent variables were the exhaust emissions of CO and HC. From the results, it is known that the greater the KOH concentration added will produce minimal exhaust gas emissions, namely the addition of KOH with a concentration of 15 M which results in CO exhaust emissions of 0.237 (vol%) and HC 84 (ppm vol). Keywords : Biogas; Emission; Potassium Hydroxide, Otto Engine. DAFTAR RUJUKANAbdussalam., Fernandez, D., & Lapisa, R. (2018). Penggunaan biogas sebagai bahan bakar alternatif pada mesin generator set multi equipment (Me) 1800. Automotive Engineering Education Journals, 2(2), 1-7.Ardhiany, S. (2018). Proses absorbsi gas CO2 dalam biogas menggunakan alat absorber tipe packing dengan analisa pengaruh laju alir absorben NaOH. Jurnal Teknik Patra Akademika, 9(2), 55-65.Fahmayanti, Y., & Abtokhi, A. (2018). The addition effect of NaOH and KOH toward biogas purification. Jurnal Neutrino: Jurnal Fisika dan Aplikasinya, 10(2), 40-44.Hardianto, A., & Hermawan, D. (2019). Pengaruh filterisasi bertingkat larutan KOH, NaOH dan TEA terhadap penurunan prosentase CO2 pada biogas. Jurnal Flywheel, 10(1), 43-54.Hermawan, D., Hamidi, N., & Sasongko, M. N. (2016). Performansi purifikasi biogas dengan KOH based absorbent. Jurnal Rekayasa Mesin, 7(2), 65-73.Hery, A. F., Septiropa, Z., Riansyah, S., & Romadhi, F. (2011). Pemanfaatan biogas/landfillgas sebagai bahan bakar mesin bensin 1 silinder 4 langkah. Jurnal Teknik Industri, 12(2) 162-168.Nurdin, A., & Aries, D. (2018). Review aplikasi bahan bakar biogas pada motor bakar SI (spark ignition). Jurnal SIMETRIS, 9(2), 797-802.Prastya, R., Susilo, B., & Lutfi, M. (2013). Pengaruh penggunaan bahan bakar biogas terhadap emisi gas buang mesin generator set. Jurnal Keteknikan Pertanian Tropis dan Biosistem, 1(2), 77-84.Prihutama, F. A., Firmansyah, D. N., Siahaan, K. S. H., & Fahmi, B. (2017). Pemanfaatan biogas sebagai energi alternatif ramah lingkungan daerah Desa Monggol, Kabupaten Gunungkidul, Yogyakarta. SNITT-Politeknik Negeri Balikpapan, 87-95.Rao, A. B. & Rubin, E. S. (2002). A technical, economic and environmental assessment of amine based carbon capture technology for power plant greenhouse gas control. Environmental Science & Technology, 36(20), 4467-4475Ritonga, A. M., & Masrukhi. (2017). Optimasi kandungan metana (CH4) biogas kotoran sapi menggunakan berbagai jenis adsorben. Jurnal Rona Teknik Pertanian, 10(2), 8-17.Ritonga, A. M., Masrukhi., & Kusmayadi, R. P. (2020). Pemurnian biogas metode adsorpsi menggunakan down-up purifier dengan arang aktif dan silika gel sebagai adsorben. Journal of Agricultural and Biosystem Engineering Research, 1(1), 72-80.Sunaryo. (2014). Uji eksperimen pemurnian biogas sebagai pengganti bahan bakar motor bensin. Jurnal PPKM II, 123-130.Suputra, I. M. T., Nindhia, T. T., & Surata, W. (2017). Pemurnian biogas dari gas pengotor CO2 menggunakan campuran kalium hidroksida padat dengan sekam padi. Jurnal Ilmiah Teknik Desain Mekanika, 6(3), 272-275.Sutanto, R., Alit, I. B., & Rezeki, G. (2016). Pengaruh absorsi gas CO2 dan H2S dalam biogas menggunakan pasta batu apung terhadap peningkatan unjuk kerja motor bakar. Jurnal Dinamika Teknik Mesin, 6(1), 31-37.Suyatno A., & Hermawan, D. (2016). Analisis campuran KOH dan H2O terhadap proses penyerapan CO2 pada biogas hasil ternak dan biogas hasil tempat pembuangan sampah (TPS). Jurnal Widya Teknika, 24(1), 1-5.Van Bhat, R. D., Kuipers, J.A M. & Versteeg, G. F. (2000). Mass transfer with complex chemical reactions in gas-liquid system: two step reversible reactions with unit stoichiometric and kinetic order. Chemical Engineering Journal, 76(2), 127-152.
Analisa Bentuk Profil dan Dimensi Supporting Profile terhadap Defleksi dan Tegangan pada Base Kondensor Unit Purna Anugraha Suarsana; Ahmad Hanif Firdaus; Ismi Choirotin; Moch. Agus Choiron
Jurnal Energi Dan Manufaktur Vol 6 No 2 (2013): Oktober 2013
Publisher : Department of Mechanical Engineering, University of Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (494.236 KB)

Abstract

AbstrakKondensor merupakan komponen dari sistem refrigrasi yang berfungsi untuk membuang kaloryang berasal dari dalam ruangan ke lingkungan sekitar. Salah satu elemen pada kondensoryang menerima pembebanan terbesar adalah Supporting Profile.Penelitian ini bertujuan untukmenganalisa bentuk profil dan dimensi Supporting Profile terhadap defleksi dan tegangan padabase kondensor unit, sehingga dapat diprediksi desain Supporting Profile dengan tegangandan defleksi minimal. Penelitian ini menggunakan metode Elemen Hingga denganmemanfaatkan SoftwareAnsys 14.5. Material Supporting Profile yang digunakan adalah RSt37-2 (S235JRG2) yang diasumsikan memakai model material linear isotropic hardening. Tipeelemen yang digunakan dalam pemodelan ini adalah beam, 3D node 189. Pembebanan padaSupporting Profile berupa berat total dari unit kondensor, dimana berat total merupakanpenjumlahan dari berat kering kondensor dengan berat refrigrant yang terdapat didalamkondensor. Variasi bentuk profil pada penelitian ini adalah; C-Profile, I-Profile dan Box-Profile.Variasi dimensi Supporting Profile yang digunakan meliputi tinggi, lebar dan tebal masingmasingadalah 60 x 40 x 3mm, 80 x 50 x 5mm,100 x 50 x 3, 100 x 50 x 5mm dan 120 x 60 x6mm. Hasil dari pemodelan dibandingkan dengan hasil analitis untuk memverifikasipemodelan. Dari hasil penelitian ini diperoleh bahwa tegangan dan defleksi terkecil terjadi padaSupporting Profile dengan bentuk Box-Profile dan dimensi profil 120 x 60 x 6mm.Kata Kunci: Supporting profile, defleksi, tegangan, bentuk profil, dimensiAbstractThe condenser is a component of a refrigeration system that serves to throw heat from indoorsto the surrounding environment. One element of the condenser which receives the largest loadis Supporting Profile. This research aims to analyze the profile’s shape and supporting profile’sdimensions to deflection and stress at base of condenser unit, so it can be predicted supportingprofile’s design with minimum stress and deflection. This study uses Finite Element method byutilizing Ansys 14.5 software. The material of supporting profile was RSt37 - 2 ( S235JRG2 )which assumed as linear isotropic hardening material. The type of elements used in thismodeling is beam , 3D node 189. The load of supporting profile is the total weight of thecondenser unit , which is the sum of the total dry weight of the the condenser and the weight ofrefrigerant contained in the condenser. Profile variations in this study are: C -Profile , I-Profileand Box -Profile . Variation ofSupporting profile’s dimensions are height, width and thicknesswhich respectively 60 x 40 x 3mm , 80 x 50 x 5mm , 100 x 50 x 3 , 100 x 50 x 5 mm and 120 x60 x 6mm. The results of modeling compared with analytic results to verify the modeling . Theresults of this study shown that the smallest stress and deflection occurs in a SupportingProfilewith Box – Profile’s shape and dimensionof profile 120 x 60 x 6mm.Keywords: Supporting profile, deflection, stress, profile’s shape, dimension
Pelatihan Mengoperasikan Display LED Dot Matrix berbasis NodeMCU ESP8266 sebagai Alarm Pengingat Salat di Musala Nurul Huda Poncokusumo-Malang Zakki Fuadi Emzain; Utsman Syah Amrullah; Nanang Qosim; Ahmad Hanif Firdaus; Am. Mufarrih
JURPIKAT (Jurnal Pengabdian Kepada Masyarakat) Vol 1 No 2 (2020)
Publisher : Politeknik Dharma Patria

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37339/jurpikat.v1i2.334

Abstract

Pemanfaatan teknologi seperti display LED dot matrix yang berbasis NodeMCU ESP8266 semakin luas penggunaannya. Tidak hanya digunakan untuk iklan dan promosi di toko-toko bisnis saja tapi juga bisa dimanfaatkan di Masjid atau Musala untuk menunjang ibadah. Musala Nurul Huda merupakan salah satu musala di Kecamatan Poncokusumo Kabupaten Malang tepatnya di komplek Pondok Pesantren Nurul Huda yang masih menggunakan kalender/pamflet jadwal salat secara manual dalam melihat jadwal salat lima waktu. Oleh karena itu perlu adanya pengabdian kepada masyarakat disana yang bertujuan untuk menerapkan teknologi display LED dot matrix dan juga pelatihan kepada takmir musala terkait cara mengoperasikannya. Metode yang digunakan dalam kegiatan pengabdian ini adalah metode Participatory Rural Appraisal (PRA). Tahapan pelaksanaan kegiatan ini adalah suvei lapangan, pembuatan running text, pelatihan mengoperasikan running text, serta pemasangan running text. Hasil evaluasi kegiatan menunjukkan bahwa running text dapat berfungsi dengan baik dan takmir musala mampu mengoperasikan dan mensetting running text dengan baik.
Planning for Maintenance and Repair of Continuous Ship Unloader Using the IRRO Method Syamsul Hadi; Alfarizi Al Azis; Vinan Viyus; Etik Puspitasari; Ahmad Hanif Firdaus; Andri Setiawan
Logic : Jurnal Rancang Bangun dan Teknologi Vol 21 No 1 (2021): March
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat (P3M) Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31940/logic.v21i1.2383

Abstract

The problem faced is damage, especially to the screw conveyor from the Continuous Ship Unloader (CSU) as a dry bulk material transfer equipment (phosphate rock) which is taken from the ship's hold which is flowed by a screw conveyor followed by the belt conveyor to the material warehouse to be processed into a type of fertilizer. The purpose of planning is to obtain a schedule and estimated cost of maintenance and repair of CSU for the period 2022 to 2025, and to obtain the ratio of maintenance-repair costs to the profit of the machine. Planning methods uses the IRRO (Inspection, Replace, Repair, and Overhoul) method include data collection of machine maintenance history and component breakdowns, checking CSU specifications, making a list of component life predictions and component prices, predicting costs and duration of component dissasembly, screw conveyor repair, maintenance and repair scheduling, and maintenance and repair cost estimates. The real results of planning in the form of a maintenance and repair schedule for the period of 2022 to 2025; maintenance and repair costs respectively for the years 2022 to 2025 are IDR 136,873,000; IDR 335,986,000; IDR 160,687,000; and IDR 464,733,000; and the ratio between maintenance costs to profit for the years 2022 to 2025 is 0.51, 1.22, 0.57, and 1.63 which means the machine is still fit for use without the need for refurbishment because it is still prospective.
Perbandingan Penggunaan Caliper Racing dan Kecepatan Terhadap Jarak Pengereman Roda Depan Sepeda Motor Matic 110cc Adji Nur Permana; Ahmad Hanif Firdaus
Jurnal Teknik Mesin, Industri, Elektro dan Informatika Vol. 3 No. 3 (2024): September : JURNAL TEKNIK MESIN, INDUSTRI, ELEKTRO DAN INFORMATIKA
Publisher : Pusat Riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jtmei.v3i3.4211

Abstract

Caliper is an important thing in a vehicle, because at this time there are many caliper brands from domestic and foreign manufacturers with different qualities. Caliper quality affects braking performance. So it takes a caliper that has the best braking performance, many automotive manufacturers introduce calipers with different brands such as domestic or foreign brands, which are no less good quality with original products. The purpose to be achieved in this study is to determine the effect of differences in the type of standard caliper with racing caliper on braking distance and braking time of Scoopy 110 CC motorcycle in order to get which caliper gets better braking performance. The results of the study obtained an average decrease in braking time of 6.27% at a speed of 20 km / h, 6.4% at a speed of 40 km / h, and 6.63% at a speed of 60 km / h and an average decrease in braking mileage of 6.14% at a speed of 20 km / h, 6.24% at a speed of 40 km / h, and 6.34% at a speed of 60 km / h.
ANALISIS PENGARUH PERUBAHAN PANJANG SPACER TERHADAP TORSI SEPEDA MOTOR 110 cc: ANALYSIS OF THE EFFECT OF SPACER LENGTH CHANGES ON TORQUE MOTORCYCLE 110 cc Ficky Yuwan Dirta; Firdaus, Ahmad Hanif
Jurnal Teknik Mesin Vol. 2 No. 1 (2023): JURNAL TEKNIK MESIN
Publisher : Program Studi Teknik Mesin PSDKU Polinema Kediri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jmeeg.v2i1.3455

Abstract

As the age of a vehicle increases, the performance of its 110 cc automatic transmission engine tends to decline. This decline in performance becomes especially noticeable when less of responsive or attempting to navigate uphill terrains. Consequently, it becomes necessary to take measures to enhance the torque of the motorcycle. One such measure involves replacing the spacer length. This study aims to investigate the impact of spacer length adjustments on torque. The research methodology employed was experimental, involved variations in spacer lengths of 37.5 mm, 38.5 mm, and 40.0 mm. The findings reveal that the highest torque of 30.1 N.m was achieved with the 37.5 mm spacer, whereas the 38.5 mm spacer yielded a torque of 27.9 N.m, and the 40.0 mm spacer resulted in a torque of 23.8 N.m.
PENGARUH JUMLAH PELAT KUNINGAN PADA CATALYTIC CONVERTER TERHADAP EMISI GAS BUANG KARBON MONOKSIDA PADA MOTOR BENSIN 100 CC: ANALYSIS OF THE EFFECT OF THE NUMBER AND THICKNESS OF PLATES BRASS ON CATALYTIC CONVERTER ON EXHAUST GAS EMISSIONS 100 CC GASOLINE MOTORCYCLE Firdaus, Ahmad Hanif; Celvin Yoga P, Bryan
Jurnal Teknik Mesin Vol. 3 No. 1 (2024): JURNAL TEKNIK MESIN
Publisher : Program Studi Teknik Mesin PSDKU Polinema Kediri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/j-meeg.v3i1.3675

Abstract

Exhaust gas emissions are pollutants that pollute the air resulting from vehicle exhaust gas. The aim of this research is to determine the results of the influence of the number and thickness of plates on exhaust emissions from 100 cc motorbikes, and to provide an alternative to reduce exhaust emissions using a catalytic converter made from brass at a cheaper price. To verify its performance, experimental research methods were used in this thesis research. The research results showed that the number and thickness of brass plates had an effect on reducing CO and HC emissions. For example, using a number of plates of 5 and a thickness of 1 mm produces the lowest CO gas, namely 0.33 g/km, at an engine speed of 3000 rpm, while the HC gas produced is 73 ppm at 3000 rpm. This can happen because the more and thicker the plates are used. be a factor in reducing exhaust emissions  
PENGARUH VARIASI PERSENTASE BIOETANOL DARI KULIT PISANG HIJAU PADA BAHAN BAKAR PERTAMAX TERHADAP DAYA MOTOR BENSIN : THE EFFECT OF VARIATION OF PERCENTAGE OF GREEN BANANA PEEL BIOETHANOL IN PERTAMAX FUEL ON GASOLINE MOTOR POWER Adryansa, Ivan; Firdaus, Ahmad Hanif
Jurnal Teknik Mesin Vol. 3 No. 1 (2024): JURNAL TEKNIK MESIN
Publisher : Program Studi Teknik Mesin PSDKU Polinema Kediri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/j-meeg.v3i1.3926

Abstract

The availability of fossil fuels is decreasing day by day, therefore it is necessary to renew, one of which is by replacing the main ingredient using renewable materials, one of which is bioethanol. The purpose of this study was to determine the effect of variations in the percentage of bioethanol in Pertamax fuel on the power of gasoline engines. The method used in this study is an experimental method with variations in the concentration of the bioethanol mixture with Pertamax, namely 15%, 20%, 25% in a 125 cc gasoline engine at engine speed of 2000 to 7000 Rpm. Get the best results from the mixture where the 25% bioethanol mixture in the power test is 8,6 Hp at 7000 Rpm rotation.
Analisis Variasi Nilai Cetane dan Timing Penginjeksian Bahan Bakar Terhadap Kinerja Mesin Diesel Monasari, Ratna; Kurniawan, Alfian Seina; Farida, Nike Nur; Abikusna, Setia; Firdaus, Ahmad Hanif
TURBO [Tulisan Riset Berbasis Online] Vol 13, No 2 (2024): TURBO: Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v13i2.3478

Abstract

Tingginya penggunaan kendaraan diesel di Indonesia memberikan preferensi bahan bakar yang berbeda di pasaran. Beragam jenis bahan bakar diesel tersebut memiliki berbagai keunggulannya masing-masing dengan nilai cetane yang berbeda. Nilai cetane pada bahan bakar diesel sangat berpengaruh dalam proses pembakaran yang terjadi. Selain hal tersebut, waktu penginjeksian bahan bakar yang terlalu cepat atau lambat juga dapat mempengaruhi daya yang dihasilkan oleh mesin diesel. Untuk mengatur waktu penginjeksian bahan bakar perlu disesuaikan dengan nilai cetane bahan bakar yang digunakan. Proses ini disebut dengan engine tuning. Tujuan dari penelitian ini yaitu mengetahui pengaruh variasi nilai cetane dan waktu penginjeksian bahan bakar terhadap daya dan SFC yang dihasilkan. Metode pengujian eksperimental dilakukan dengan menguji mesin uji pada sasis dinamometer. Waktu penginjeksian bahan bakar dilakuan sekitar 2 – 40 piston mendekati titik mati atas dari setiap variasi bahan bakar. Dalam penelitian ini diperoleh bahwa kinerja terbaik pada sebuah mesin diesel yang dilakukan proses tuning dapat meningkatkan daya yang dihasilkan sebesar 196,4% dari kondisi standar.
Co-Authors Abikusna, Setia Adji Nur Permana Adryansa, Ivan Ahmed Sabili Gifari Alfarizi Al Azis AM Mufarrih Amrullah, Utsman Syah Andri Setiawan Arif Rochman Fachrudin, Arif Rochman Astuti, Fina Andika Frida Bagus Irawan Celvin Yoga P, Bryan Etik Puspitasari Farida, Nike Nur Ficky Yuwan Dirta Frida, Fina Andika Harijono, Agus Ismi Choirotin Kurniawan, Alfian Seina Moch. Agus Choiron Monasari, Ratna Muhammad Daniar Hidayat Nanang Qosim Nurfirmansyah, Muhammad Purna Anugraha Suarsana Purwoko Purwoko Purwoko Purwoko Ratna Monasari Rizki Priya Pratama, Rizki Priya Samsul Hadi SANTOSO SANTOSO Septyana Riskitasari Supa Kusuma Aji Syamsul Hadi Vinan Viyus Wijaya Putra Zaidan Almeyda Zakki Fuadi Emzain