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Turbo : Jurnal Program Studi Teknik Mesin
Published by Universitas Muhammadiyah Metro
ISSN : 23016663     EISSN : 2477250X     DOI : https://doi.org/10.24127
Core Subject : Engineering,
Mechanical Engineering
TURBO ISSN (print version) 2301-6663 & ISSN (online version) 2477-250X is a peer-reviewed journal that publishes scientific articles from the disciplines of mechanical engineering, which includes the field of study (peer) material, production and manufacturing, construction and energy conversion. Articles published in the journal Mechanical include results of original scientific research (original), and a scientific review article (review). Mechanical journal published by the Department of Mechanical Engineering, Faculty of Engineering, University Muhammadiyah of Metro for publishing two periods a year, in June and December with the number of articles 14-20 per year . Editors receive manuscripts in mechanical engineering from various academics, researchers and industry practitioners.
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 32 Documents
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Search results for , issue "Vol 14, No 1 (2025): TURBO : Jurnal Program Studi Teknik Mesin" : 32 Documents clear
Pengujian dan Analisa Biogas Model Landfill Sebagai Bahan Bakar Alternatif Rohmat, Yusup Nur
TURBO [Tulisan Riset Berbasis Online] Vol 14, No 1 (2025): TURBO : Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v14i1.3981

Abstract

Dalam dunia usaha komersial dan domestic, kebutuhan bahan bakar untuk memasak semakin meningkat karena semakin terbatasnya alternatif bahan bakar LPG pasca transisi bahan bakar, namun tantangan yang dihadapi semua negara pada dasarnya sama. Persoalannya, harga minyak dunia sedang naik karena kelangkaan bahan bakar atau kelangkaan bahan bakar yang semakin meningkat. Biogas merupakan penguraian sampah organik oleh bakteri melalui proses fermentasi anaerobik sehingga menghasilkan gas metana yang dapat diolah. Tujuan dari penelitian ini adalah untuk mengetahui suhu, tekanan dan durasi nyala api biogas yang dihasilkan dari campuran limbah cair kotoran sapi dan ampas tahu. Penelitian ini menggunakan 3 variasi perbandingan volume campuran limbah cair kotoran sapi dan ampas tahu yaitu B1 (50%:50%), B2 (70%:30%), dan B3 (90%:10%) dengan penambahan air sebanyak 2,5 liter untuk setiap variasi. Pengumpulan data dilakukan selama 7 hari pada pukul 17.00. Perbandingan terbaik pada penelitian ini ditunjukkan pada variasi campuran 50:50. Hal ini dikarenakan jumlah variasi campuran kotoran sapi, ampas tahu, dan air yang seimbang mempengaruhi proses fermentasi pembentukan biogas sehingga menghasilkan produksi biogas yang lebih cepat dan nilai tekanan yang lebih tinggi. Hasil penelitian menyimpulkan bahwa waktu fermentasi selama 7 hari menghasilkan gas metana 83,824 ppm, gas H2S 28,886 ppm, tekanan 1,4 psi, dan suhu 34,16 0C. Nyala api berlangsung selama 4 menit 36 detik.
Experimental Study on the Performance of a Wind-Solar Hybrid Power Plant for Electric Motorcycle Charging Station Applications Wicaksono, Yoga Arob; Trihatmojo, Ahmad Arbi
TURBO [Tulisan Riset Berbasis Online] Vol 14, No 1 (2025): TURBO : Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v14i1.3764

Abstract

The development of electric vehicle charging station infrastructure in Indonesia is still slow, resulting in difficulties for electric vehicle users due to limited driving range. On the other hand, Indonesia has a target of net zero emissions by 2050, while most of the energy sources for electric vehicle charging stations still rely on fossil fuels. To address this issue, innovative solutions such as electric vehicle charging stations powered by renewable energy are needed. Wind turbines and solar panels are technologies that can be utilized as energy sources. Power plants with a single energy source like solar panels have limitations in their energy production time. While wind turbines can operate 24 hours, they depend on wind speed. To overcome this problem, the solution is to implement a hybrid system by combining both wind and solar energy sources and converting them into electrical energy. This research aims to investigate the performance of a wind-solar hybrid power plant for electric vehicle charging station applications. The wind-solar hybrid power plant in this study is designed to provide electrical energy for one unit of an electric motorcycle with a battery capacity of 72 Volts 20 Ah. This research uses an experimental method in a real environment. The wind turbine used in this study is a cross-flow type, while the solar panel used is monocrystalline. To find the optimal point of the hybrid power plant system in converting energy, the influence of the number of turbine blades and the tilt angle of the solar panel on efficiency is investigated. The results show that a turbine with 6 blades can produce higher efficiency compared to turbines with 4 and 5 blades. Meanwhile, a tilt angle of 15o can produce higher efficiency compared to tilt angles of 0o and 30o.
Analisis Kebocoran Pipa Terhadap Kinerja Mesin Boiler DUNPHY TD 530 YML VK Muhammad, Anovan Fadhil; Adiwibowo, Priyo Heru
TURBO [Tulisan Riset Berbasis Online] Vol 14, No 1 (2025): TURBO : Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v14i1.3840

Abstract

This study aims to analyze the energy efficiency and capacity optimization of the TD 530 YML VK boiler after the occurrence of damage in the combustion system, specifically pipe leaks. The research was conducted by monitoring the boiler's condition before and after the leak, as well as after repairs were carried out. The methods used include collecting data on the leak, calculating energy efficiency, and evaluating fuel consumption. The results show that pipe leaks caused a 10% decrease in efficiency and an 11.1% increase in fuel consumption. After the repair, efficiency improved to 95% of the optimal condition, reducing fuel consumption by 5.31% for Diesel Oil and 5.26% for Natural Gas. The conclusion of this study is that repairs can enhance energy efficiency and reduce fuel consumption, although the performance does not fully return to the pre-leak optimal state
Studi Eksperimental Hydrothermal Carbonization (HTC) Batang Tembakau untuk Optimasi Nilai Kalor: Pengaruh Temperatur dan Residence Time Abidin, Asroful; Nurhalim, Nurhalim; Ridlo, Muhammad Zainur; Rizkina, Fitriana Dina; Al-Rosyid, Latifa Mirzatika; Iswanto, Firnanda Faiq
TURBO [Tulisan Riset Berbasis Online] Vol 14, No 1 (2025): TURBO : Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v14i1.4131

Abstract

Kebutuhan akan sumber energi terbarukan mendorong pengembangan teknologi konversi biomassa, salah satunya melalui Hydrothermal Carbonization (HTC). Penelitian ini bertujuan untuk mengkaji pengaruh variasi temperatur dan residence time terhadap nilai kalor hydrochar dari limbah batang tembakau. Penelitian menggunakan pendekatan eksperimental kuantitatif dengan bahan baku batang tembakau jenis na-oogst dari Jember, Jawa Timur, Indonesia. Proses HTC dilakukan pada temperatur 120, 150, dan 180°C dengan residence time 3 jam dan 5 jam, serta analisis nilai kalor dilakukan berdasarkan metode ASTM D5865. Hasil penelitian menunjukkan bahwa proses HTC meningkatkan nilai kalor dari 3149,087 kal/g (bahan mentah) menjadi 3915,888 kal/g pada kondisi optimal 180°C selama 5 jam, dengan peningkatan sebesar 24,3%. Penelitian ini menegaskan bahwa batang tembakau dapat dimanfaatkan sebagai biomassa alternatif berpotensi tinggi untuk energi terbarukan, sekaligus mendukung upaya pengelolaan limbah pertanian yang berkelanjutan.
Pemanfaatan Fly Ash di Indonesia untuk Peningkatan Keberlanjutan di Sektor Energi, Lingkungan, dan Material Konstruksi: Systematic Literature Review Yanuar, Setiyo Ferdi; Ahmad, Hilfi Harisan; Abidin, Asroful; Rizkina, Fitriana Dina
TURBO [Tulisan Riset Berbasis Online] Vol 14, No 1 (2025): TURBO : Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v14i1.4050

Abstract

Pemanfaatan fly ash, limbah pembakaran batu bara, berpotensi meningkatkan keberlanjutan sektor energi, lingkungan, dan konstruksi di Indonesia. Sebagai pengganti semen dalam beton geopolimer, fly ash dapat mengurangi emisi karbon, meningkatkan ketahanan material, serta mendukung efisiensi energi. Selain itu, penggunaannya membantu mengurangi dampak limbah batu bara yang tidak terkelola. Namun, tantangan utama meliputi kandungan logam berat, keterbatasan teknologi pengolahan, dan kurangnya regulasi. Dari sisi energi, fly ash mendukung transisi menuju industri hemat energi, sementara dari aspek lingkungan, diperlukan strategi mitigasi untuk mengurangi risiko pencemaran. Penelitian ini menggunakan Systematic Literature Review (SLR) berbasis PRISMA dengan data dari Scopus untuk mengidentifikasi potensi dan tantangan fly ash. Hasil analisis menunjukkan pergeseran fokus penelitian dari karakterisasi fisik ke aplikasinya dalam konstruksi berkelanjutan. Kesimpulan menekankan pentingnya regulasi yang lebih kuat, inovasi teknologi, serta kolaborasi antara akademisi, industri, dan pemerintah. Rekomendasi mencakup kebijakan berbasis bukti, penelitian pengolahan fly ash, serta Life Cycle Assessment (LCA) untuk menilai dampak lingkungan dan efisiensi energi.
PENGARUH SUDUT HELIX PADA TURBIN ANGIN SAVONIUS HELIX TERHADAP DAYA YANG DIHASILKAN Faruq, Muhammad Zaki Faishol; Nugraha, Nurmuntaha Agung; Indriaputri, Lydia; Karima, Isty; Maulana, Mahendra; Mu'minin, Muhammad Khoirul
TURBO [Tulisan Riset Berbasis Online] Vol 14, No 1 (2025): TURBO : Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v14i1.3858

Abstract

Turbin angin merupakan media untuk mengubah energi angin menjadi energi listrik. Turbin Savonius Helix adalah jenis turbin dengan sumbu vertikal yang direkomendasikan karena dapat menangkap angin dari segala arah. Variasi sudut Helix digunakan mengoptimalkan penangkapan energi angin, sedangkan penggunaan material PETG diharapkan dapat meningkatkan efisiensi dan daya tahan turbin. Material PETG (Polyethylene Terephthalate Glycol) yaitu termoplastik polyester yang merupakan turunan dari jenis plastik PET. Penelitian ini bertujuan mengetahui pengaruh variasi sudut Helix pada daya yang dihasilkan serta mengetahui daya maksimal oleh turbin Savonius Helix. Metode yang digunakan adalah metode eksperimen. Dalam penelitian ini dilakukan pengujian hubungan antara kecepatan angin dan daya listrik pada sudut  Helix 180°, 225°, dan 270°. Hasil penelitian didapatkan hasil daya minimum sudut Helix 180° sebesar 0,0141 Watt pada kecepatan angin 2,15 m/s dan daya maksimal sebesar 6,22518 Watt pada kecepatan angin 13,3 m/s. Daya minimum sudut Helix 225° sebesar 0,0168 Watt pada kecepatan angin 1,58 m/s dan daya maksimal sebesar 6,1039 Watt pada kecepatan angin 13,14 m/s. Daya minimum sudut Helix 270° sebesar 0,01645 Watt pada kecepatan angin 2,5 m/s dan daya maksimal sebesar 8,56121 Watt pada kecepatan angin 13,3 m/s.
ANALISIS KINERJA SISTEM WATER HEATER BERBASIS AIR CONDITIONER 1 PK PADA PENGUJIAN SKALA LABORATORIUM To, Gunarto; Setiawan, Agus; Julianto, Eko; Iwan, Muhammad
TURBO [Tulisan Riset Berbasis Online] Vol 14, No 1 (2025): TURBO : Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v14i1.3865

Abstract

AbstrakPemanas air merupakan kebutuhan penting di sektor rumah tangga dan industri, yang mendorong inovasi menuju solusi hemat energi. Penelitian ini mengevaluasi kinerja sistem pemanas air berbasis air conditioner (AC) 1 PK, yang memanfaatkan panas buangan melalui penukar panas helical coil (diameter 25 cm, 10 lilitan, pitch 2 cm). Sistem ini diuji dalam kondisi laboratorium dengan fokus pada laju perpindahan panas (), laju aliran air (), koefisien performansi (COP), dan efisiensi sistem. Hasil penelitian menunjukkan bahwa sistem berhasil meningkatkan suhu air dari 25,00°C menjadi 47,18°C dalam 135 menit, dengan  sebesar 0,688 kW, COP sebesar 0,905, dan efisiensi 81,42%. Stabilisasi suhu tercapai pada menit ke-120, menunjukkan keandalan termal dan operasional. Konfigurasi helical coil secara efektif mentransfer panas, meskipun terdapat kehilangan panas kecil akibat geometri coil dan disipasi lingkungan. Penelitian ini menyoroti potensi sistem pemanfaatan panas buangan yang terintegrasi dengan unit AC, terutama di wilayah tropis dengan penggunaan AC yang tinggi. Optimalisasi geometri coil, peningkatan isolasi tangki, dan penyesuaian laju aliran air dapat meningkatkan kinerja sistem. Temuan ini berkontribusi pada pengembangan teknologi pemanas air yang berkelanjutan dan hemat energi.
ANALYSIS OF THE EFFECT OF HOT FLUID FLOW SPEED VARIATIONS ON POTATO CHIPS DRYING CAPACITY USING LPG GAS Karyasa, Tungga Bimadi; Syamsuri, S
TURBO [Tulisan Riset Berbasis Online] Vol 14, No 1 (2025): TURBO : Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v14i1.4169

Abstract

Some of the potato chips circulating in the community contain carbohydrates and have high oil absorption capacity. This slicing or slicing stage affects the level of uniformity of the potatoes during the oven, because during the oven the potato slices that are not uniform will cause case hardening and if they are too thin they will easily burn. Then cool, slice and dry until the water reaches 10%. To find out what percentage of water content is in potatoes so that these potatoes can be consumed properly, this research was carried out. In this research, the following research variations were carried out; the speed of the incoming air flow is 3.8 m/s, 4.2 m/s, and 4.5 m/s. The results of this research are that the greater the speed of hot air, the greater the resulting temperature. After testing for 30 minutes and with variations in air speed of 4.5 m/second, the potato weight was 505 grams. LPG fuel is more efficient than other fuels.
PERBANDINGAN PENGARUH BAHAN BAKAR CPO OFF-GRADE DAN BIODIESEL B35 TERHADAP KEAUSAN PADA POMPA BAHAN BAKAR MESIN DIESEL Buana, Erganata Surya
TURBO [Tulisan Riset Berbasis Online] Vol 14, No 1 (2025): TURBO : Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v14i1.3798

Abstract

As time progresses, the use of plant-based alternative fuels is increasing. However, these new alternative fuels can cause various issues in engines, one of which is increased wear on fuel pumps. This study aims to examine the wear rate of fuel pumps in diesel engines using off-grade CPO fuel and compare it to biodiesel B35. Experimental testing was conducted to obtain data on the wear rate of fuel pumps for both types of fuel under identical testing conditions. The parameters measured included the dimensions and mass of the fuel pump components, as well as the temperature of the coolant tank and intake pipe. The results of this study show that the fuel pump components in diesel engines using off-grade CPO experience higher wear rates compared to those using biodiesel B35. This is indicated by dimension measurements showing a difference of 0.24% and mass measurements showing a difference of 0.075%. The higher wear rate is attributed to the higher acid number and sulfur content in off-grade CPO. Additionally, the temperature of the coolant tank and intake pipe in engines using off-grade CPO was also higher compared to those using biodiesel B35, due to the higher oxygen content and the lower cetane number and flash point of off-grade CPO fuel.
Optimasi Performa Kompor Oli Bekas dengan Variasi Jenis Bahan Bakar dan Sistem Preheating Sudarno, Sudarno; Wahyuni, Nurul Sri; Ramatulloh, Arya Eka
TURBO [Tulisan Riset Berbasis Online] Vol 14, No 1 (2025): TURBO : Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v14i1.4106

Abstract

Previous studies have shown that used oil can be used as an alternative fuel, although its efficiency is relatively low with a red to orange flame. To improve performance, design improvements need to be made, namely by preheating the fuel before entering the combustion chamber, selecting the right fuel, and improving the distribution of combustion air. This study aims to find the effect of fuel type on the resulting performance. The study was conducted using analysis and experimental methods. In this study, we continued the investigation related to the effect of fuel type on the resulting performance. The types of fuel used were used cooking oil, used oil, and new oil. The performance measured included efficiency, flame temperature distribution, and exhaust emissions. Based on this study, it was found that the stove with new oil fuel produced the best performance with the highest efficiency value of 56,16%. The highest temperature produced by new oil reached 1094°C, indicating better thermal stability compared to other fuels. In addition, exhaust emission tests showed that new oil produced the highest CO₂ levels (10,0%), the lowest CO (2,24%), and the lowest HC (24,4 ppm), indicating the most perfect combustion. This confirms that the use of new oil in used oil stoves with fuel preheating can increase thermal efficiency, and produce cleaner emissions.

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