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All Journal Journal of Science and Applicative Technology Scientific Journal of Mechanical Engineering Kinematika Journal of Sciencce Technology and Visual Culture
Rico Aditia Prahmana
Program Studi Teknik Mesin, Institut Teknologi Sumatera, Lampung Selatan 35365, Indonesia
Arts Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Earth & Planetary Sciences Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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UNJUK KERJA MOTOR BENSIN GENERATOR-SET BERBAHAN BAKAR CAMPURAN BIOETANOL NIRA TEBU Abdi Hanra Sebayang; Aditya Pangestu; Rico Aditia Prahmana
Scientific Journal of Mechanical Engineering Kinematika Vol 7 No 2 (2022): SJME Kinematika Desember 2022
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v7i2.233

Abstract

Peningkatan konsumsi bahan bakar minyak terjadi setiap tahunnya, hal ini disebabkan oleh peningkatan jumlah penduduk. Untuk mengatasi permasalahan tersebut, dikembangkan bahan bakar alternatif seperti bioetanol. Penelitian ini dilakukan dengan menggunakan metode eksperimen untuk menganalisis unjuk kerja motor SI silinder tunggal berbahan bakar campuran bioetanol. Bioetanol dihasilkan dari nira tebu melalui fermentasi dengan bantuan bakteri Saccharomyces cerevisiae. Komposisi campuran bahan bakar yang digunakan adalah 5% bioetanol+95% Premium (Ron 88), 5% bioetanol+95% Pertalite (Ron 90) dan 5% bioetanol+95% Pertamax (Ron 92) yang kemudian dianalisis kinerja genset motor bensin. Hasil penelitian menunjukkan bahwa Premium sebesar 240,9 W memperoleh daya tertinggi dari campuran bioetanol. Konsumsi bahan bakar spesifik berkurang, diperoleh untuk Premium sebesar 1,417 kg/Wh, dan daya campuran bioetanol tertinggi diperoleh untuk Pertalite. Hasilnya menunjukkan daya tertinggi 218,67 W dan torsi 0,803 Nm. Efisiensi termal diperoleh sebesar 38,711% untuk Pertalite. Campuran bioetanol Pertamax memiliki tenaga dan torsi masing-masing 220 W dan 0,875 Nm. Sedangkan nilai konsumsi bahan bakar yang diperoleh adalah 1,573 kg/Wh, dan efisiensi termal campuran adalah 42,524%. Hasil dari penelitian ini akan memberikan wawasan tentang potensi penggunaan campuran bioetanol untuk aplikasi mesin generator dan menawarkan jalur untuk penelitian selanjutnya dalam rasio bioetanol yang berbeda untuk mewujudkan manfaat signifikan dari mesin generator untuk mesin pembakaran dalam.
Uji Performa Gasoline Engine menggunakan bioaditif cengkeh dengan bensin berkadar oktan 90 Devia Gahana Cindi Alfian; Rico Aditia Prahmana; Dicky J. Silitonga; Abdul Muhyi; Didik Supriyadi
Journal of Science and Applicative Technology Vol 4 No 1 (2020): Journal of Science and Applicative Technology June Chapter
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM), Institut Teknologi Sumatera, Lampung Selatan, Lampung, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (542.971 KB) | DOI: 10.35472/jsat.v4i1.243

Abstract

Globally, the demand for fuels is ever-increasing and so is the demand for fuel additives. A fuel additive is a substance added in small quantities to increase the performance of the engine, decrease fuel consumption and reduce emission. The fuel additives have no specific set of raw materials or ingredients. Every fuel additive is different from the other in many ways of raw materials and ingredients to produce these additives. In many cases, fuel additives have made by chemical materials as additives for a gasoline engine. However, the optimal parameters for the reduction of fuel consumption are not clear. Accordingly, the present study performs a mixing additive material in the form of clove oil with pure gasoline fuel with a percentage of 1%, 0,6% and 0,3% from a total volume of gasoline to be tested. Then the mixing of the additive and gasoline is tested into the gasoline engine by varying the load using 200, 400, 600, 800, 1000, 1200, 1400, 1600, 1800 and 2000 Watt power with a fixed engine rotation of 2500 rpm. The results show that the reduction of fuel consumption respectively. Results showed that the addition of 1%, 0.6% and 0.3% clove oil into a 90 octane gasoline reduced fuel consumption by 10.6%, 18.2% and 15.4% respectively. Maximum reduction of fuel consumption was 28.6% at 800 W electrical load with 0.6% of clove oil additive.
Pengaruh Komposisi Campuran Minyak Sereh Wangi dan Minyak Cengkeh terhadap Unjuk Kerja Mesin Diesel Rico Aditia Prahmana; Devia Gahana Cindi Alfian; Didik Supriyadi; Dicky Januarizky Silitonga; Abdul Muhyi
Journal of Science and Applicative Technology Vol 4 No 2 (2020): Journal of Science and Applicative Technology December Chapter
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM), Institut Teknologi Sumatera, Lampung Selatan, Lampung, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35472/jsat.v4i2.244

Abstract

The increase in fuel prices makes the use of essential oils as a natural bio-additive in diesel engines much in demand. This is because essential oils are believed to have good content to improve engine performance and reduce fuel consumption. In this research, essential oils used are citronella oil because they contain carboxylic compounds (-COOH) and clove oil which has the advantage to prevent corrosion. The aim is to improve engine performance and reduce fuel consumption can also prevent corrosion. This research was conducted by mixing citronella oil and clove oil with diesel fuel with a percentage of 1%, 0.5%, and 0.1% of the total volume. The diesel engine is operated with a loading variation of 200, 400, 600, 800, 1000, 1200, 1400, 1600, 1800, and 2000 W at a constant engine speed of 1500 rpm. The variables measured and calculated in this experiment are power, torque, Brake Mean Effective Pressure (BMEP), Specific Fuel Consumption (SFC). The results showed that the addition of citronella oil and clove oil to diesel fuel with a percentage of 0.1%, 0.5%, and 1% significantly reduced fuel consumption by 14.6%, 12.9%, and 18.3%, respectively. The maximum fuel reduction from mixed oils is only 0.086 liters/hour at 1000W loads with 1% bio-additives content.
Aplikasi Penggunaan Serah Wangi Sebagai Bioaditif Alami untuk Karakterasi Unjuk Kerja dari Mesin Diesel Abdul Muhyi; Rico Aditia Prahmana; Devia G. C. Alfian; Dicky J. Silitonga; Didik Supriyadi
Journal of Science and Applicative Technology Vol 3 No 1 (2019): Journal of Science and Applicative Technology August Chapter
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM), Institut Teknologi Sumatera, Lampung Selatan, Lampung, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1188.007 KB) | DOI: 10.35472/jsat.v3i1.194

Abstract

The consumption of diesel fuel in Indonesia is increasing every year, one way to overcome this problem is to use natural bioaditive in the form of essential oils found in Indonesia. Essential oils used in this study are fragrant lemongrass because fragrant lemongrass contains carboxylic compounds (-COOH) [1,2,3]. With the aim of improving engine performance and reducing fuel consumption. This research was conducted by mixing fragrant citronella oil with diesel oil with a percentage of 1%, 0.5% and 0.1% of the total volume. Diesel engines are operated with variations in loading 200, 400, 600, 800, 1000, 1200, 1400, 1600, 1800 and 2000 W at a constant engine speed of 1500 rpm. The variables measured and calculated in this experiment are power, torque, Break Mean Effective Pressure (BMEP), Specific Fuel Consumption (SFC). The results showed that adding citronella oil to diesel fuel with a percentage of 1%, 0.5% and 0.1% significantly reduced fuel consumption by 15.5%, 3.6% and 2.6% respectively. The maximum reduction in fuel consumption reaches 0.055 liters / hour at 200W loading with a bioaditive level of 0.1%. The next study planned is to mix clove oil and citronella oil as bioaditive so that it is expected to reduce fuel consumption and engine corrosion. Keywords: Diesel engine, bioaditive, fragrant citronella oil, performance of diesel engines, fuel consumption
Analysis Wind Characteristics in South Lampung Indonesia Rico Aditia Prahmana
Journal of Science and Applicative Technology Vol 2 No 1 (2018): Journal of Science and Applicative Technology June Chapter
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM), Institut Teknologi Sumatera, Lampung Selatan, Lampung, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (540.35 KB) | DOI: 10.35472/281439

Abstract

Many researchers have begun to evaluate the characteristics of the wind to be the mainstay of energy utilized for power generation. Various countries have started to conduct research of analysis the characteristics of wind potential in certain areas. In this study, wind speed data is be measured in the South Lampung. The maximum and minimum wind speed average in one day is 4.2 knot (from east to west direction) and 0.9 knot (from west to east direction), respectively. The sensor of wid speed is located at 10 meter height from ground. The results show that the maximum wind speed can reach 3 m/s at a height of 10 m on August and December. Moreover, the most wind direction during July to December goes to WSW (West SouthernWest) and SSE (South SouthernEast).
Unjuk Kerja Motor Diesel Generator Set Satu Silinder Menggunakan Bahan Bakar Pertadex – Minyak Nabati Rico Aditia Prahmana; Rani Mutia Sari; Abdul Muhyi; Devia Gahana CA; Jooned Hendrasakti
Journal of Science, Technology, and Visual Culture Vol 1 No 3 (2021): Desember 2021
Publisher : Jurusan Teknologi Produksi dan Industri, Institut Teknologi Sumatera

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Setiap tahunnya kebutuhan dunia akan energi terus bertambah tetapi ketersediaan akan energi fosil terus mengalami penurunan. Hal ini yang mendorong perlunya energi baru dan terbarukan untuk mensubstitusikan energi fosil tersebut agar dapat mengurangi penggunaannya. Salah satu alternatif yaitu dengan penggunaan minyak nabati dari crude palm oil yang dimana minyak nabati tersebut dibuat melalui proses transesterifikasi terlebih dahulu agar viskositas pada minyak nabati mendekati nilai viskositas pada minyak diesel yang terbuat dari fosil tersebut. Pada penelitian tugas akhir ini akan membahas tentang analisa perbandingan unjuk kerja motor diesel satu silinder dengan putaran motor sebesar 1000 rpm hingga 2000 rpm dengan interval setiap kenaikan 200 rpm dan daya konstan 1500 Watt berbahan bakar pertamina dex murni dan campuran antara pertamina dex dengan minyak nabati yang telah diformulasikan yaitu MS10, MS20, MS30, dan MS40 melalui proses transesterifikasi menggunakan katalis basa homogen. Didapatkan hasil nilai unjuk kerja motor terbaik pada variasi bahan bakar pertamina dex dengan nilai berurut-turut 0,729 Hp; 32,500 kg.cm; 0,587 kg/Hp.jam; 0,029; dan 0,285 kPa. Yang disusul oleh bahan bakar MS40, sedangkan nilai unjuk kerja motor terburuk pada variais bahan bakar MS10.
Co-Authors Abdi Hanra Sebayang Abdul Muhyi Abdul Muhyi Aditya Pangestu Devia Gahana CA Devia Gahana Cindi Alfian Dicky J. Silitonga Didik Supriyadi Jooned Hendrasakti Rani Mutia Sari