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All Journal TEKNIK Nusantara Science and Technology Proceedings Journal of Mechanical Design and Testing (JMDT)
Jayan Sentanuhady
Mechanical And Industrial Engineering Department, Universitas Gadjah Mada, Yogyakarta 55281, Indonesia
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Economics, Econometrics & Finance Engineering Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology

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Analisis Pengaruh Biodiesel B20 Dan B100 Terhadap Degradasi Viskositas Dan Total Base Number Minyak Pelumas Pada Mesin Diesel Yang Beroperasi Dalam Jangka Panjang Dengan Metode ASTM D2896 Dan ASTM D445-06 Sentanuhady, Jayan; Majid, Akmal Irfan; Prashida, W.; Saputro, W.; Gunawan, N. P.; Raditya, T. Y.; Muflikhun, Muhammad Akhsin
TEKNIK Vol 41, No. 3 (2020): December 2020
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/teknik.v41i3.32515

Abstract

Based on its characteristics, biodiesel has a higher density, viscosity, and acidity level than diesel fuel, so it has a disadvantages in terms of lubricants especially in the long run. The impact, it can decrease the kinematic viscosity of the lubricant, a decrease in the total base number, and the impact by decreased of the engine performance. This research aims to determine the characteristics of lubricants from the use of biodiesel (B20 and B100) related to the kinematic viscosity of lubricants and Total Base Number (TBN). The testing method were used ASTM D2896-15 and ASTM D445-06 standard. The study used two units Kubota RD 65 DI-NB diesel engines with a cylinder volume of 376 cc. The rotary speed of the machine was keep constant at 2200 rpm and were operated for 300 hours non-stop. Moreover, the sampled was carried out every multiple of 100 hours. Based on the research results, the quality of lubricants with B100 fuel is no better than lubricants with B20 fuel. B100-fueled lubricants have kinematic viscosity values at temperatures of 40 °C and 100 °C and has lower TBN values than B20-fueled lubricants.
Karakteristik Unjuk Kerja Mesin Diesel Menggunakan Bahan Bakar B100 dan B20 Dalam Jangka Panjang Wiliandi Saputro; Jayan Sentanuhady; Akmal Irfan Majid; Willie Prasidha; Nico Pradipta Gunawan; Thevin Yoga Raditya
Journal of Mechanical Design and Testing Vol 2, No 2 (2020): Articles
Publisher : Departemen Teknik Mesin dan Industri, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (137.135 KB) | DOI: 10.22146/jmdt.55523

Abstract

Penggunaan bahan bakar alternatif selalu berkaitan dengan dua masalah global, yaitu meningkatnya penggunaan minyak mentah dan cadangan minyak yang semakin menurun. Disamping itu, sumber energi alternatif menjadi topik yang menarik untuk terus dikaji. Indonesia adalah salah satu negara penghasil minyak kelapa sawit terbesar di dunia dengan nilai produksi mencapai 51,8 juta ton pada tahun 2019. Salah satu sumber energi alternatif yang dapat diolah dari minyak sawit adalah biodiesel. Biodiesel dapat digunakan secara langsung sebagai bahan bakar untuk mesin diesel. Tetapi biodiesel memiliki karakteristik yang berbeda dengan solar sehingga akan mempengaruhi unjuk kerja dan hal lainnya pada mesin. Oleh karena itu, penelitian ini akan menentukan pengaruh penggunaan biodiesel terhadap unjuk kerja mesin yang mencakup daya mesin, torsi, konsumsi bahan bakar spesifik (SFC), dan efisiensi termal. Bahan bakar yang digunakan adalah B100 (100% biodiesel minyak sawit) dan bahan bakar B20 (20% biodiesel minyak sawit + 80% solar) sebagai pembandingnya. Pengujian dilakukan selama 300 jam operasi, dengan beban konstan berupa lampu halogen sebesar 4 kW. Menurut hasil penelitian, mesin berbahan bakar B100 menghasilkan daya, torsi, dan efisiensi termal yang lebih rendah masing-masing sebesar 2,17%; 0,76%; dan 1,25% serta menghasilkan SFC yang lebih tinggi sebesar 14,61% bila dibandingkan dengan mesin berbahan bakar B20. Hal tersebut dikarenakan karakteristik bahan bakar B100 yang memiliki nilai kalor lebih rendah dan viskositas serta densitas lebih tinggi dibandingkan bahan bakar B20.
Characteristics of Specific Fuel Consumption on Exhaust Emissions in Diesel Engines Fueled by B20 and B100 Wiliandi Saputro; Jayan Sentanuhady; Willie Prasidha; Luluk Edahwati; Wahyu Dwi Lestari; Ndaru Adyono; Tria Puspa Sari; Ahmad Khairul Faizin; Radissa Dzaky Issafira
Nusantara Science and Technology Proceedings 2nd International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

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

Abstract

The dependence of Indonesian people on diesel fuel is still very high, proven by the increasing amount of diesel fuel consumption yearly. The increase in diesel fuel consumption is a severe problem that must be anticipated because diesel is a fuel that originates from fossils and is non-renewable. In addition to its limited availability, environmental issues are also a matter of concern in the use of diesel fuel because the resulting exhaust emissions can interfere with health and increase global warming. One way to overcome this is to switch from fossil fuels to biofuels, i.e., biodiesel. Although theoretically biodiesel can be used directly as a substitute for diesel fuel, there is very little research on the fuel consumption required for the exhaust emissions produced. Therefore this study aims to determine the correlation between the characteristics of specific fuel consumption (SFC) on exhaust emissions produced in diesel engines using B20 (20% biodiesel + 80% diesel) and B100 (100% biodiesel) fuel. Based on the results of the study, it was found that an increase in SFC resulted in a downward trend in carbon monoxide (CO) and carbon dioxide (CO2) emissions. In the meantime, the hydrocarbon (HC) emissions and the resulting smoke opacity increased; this was influenced by several factors such as an increase in combustion temperature, increased deposit, and component wear.
Karakteristik dan Temperatur Nyala Api Pembakaran Biodiesel Berdasarkan Kadar Fatty Acid Methyl Esters Topayung, Christian Yuda; Nuryadin, Shakti; Sentanuhady, Jayan
Journal of Mechanical Design and Testing Vol 6, No 1 (2024): Articles
Publisher : Department of Mechanical and Industrial Engineering

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jmdt.95190

Abstract

Meningkatnya penerapan biodiesel yang bertujuan untuk suplementasi secara keseluruh atau sebagian bahan bakar untuk proses pembakaran dalam berbagai aplikasi industri memerlukan studi lebih lanjut mengenai karakteristik yang dihasilkan dari proses tersebut. Oleh karena itu, penelitian ini bertujuan untuk mengkaji karakteristik pembakaran berbagai macam bahan bakar campuran yang dipengaruhi oleh variasi persentase biodiesel FAME (fatty acid methyl esters) yang berasal dari minyak sawit sebagai penggantinya, yang dilakukan dengan menggunakan alat burner. Bahan bakar disemprotkan dengan nosel 60 derajat berkapasitas 5 galon per jam. Parameter yang diukur adalah panjang nyala api berdasarkan waktu, kecepatan rambat nyala api dengan percepatan pada posisi axial di depan nosel, dan profil temperatur nyala api. Temuan penelitian ini menunjukkan bahwa bahan bakar dengan persentase campuran FAME yang lebih rendah mengakibatkan proses pembakaran yang menghasilkan nyala api dengan nilai yang lebih tinggi pada parameter yang diamati, dan seiring bertambahnya persentase, nilainya terus menurun. Pengamatan ini dapat menghasilkan kesimpulan bahwa properties bahan bakar seperti densitas dan viskositas bervariasi atau dipengaruhi berdasarkan persentase  bahan bakar.
Experimental Investigation of Premixed LPG-Air Emission Profile During Flame Impingement Process Israq, Imam; Nuryadin, Shakti; Sentanuhady, Jayan
Journal of Mechanical Design and Testing Vol 6, No 1 (2024): Articles
Publisher : Department of Mechanical and Industrial Engineering

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jmdt.97745

Abstract

In the present study, emission profile of premixed 90% propane-10% butane flame, namely LPG (Liquified Petroleum Gas) was experimentally investigated. The fuel was mixed in premixed chamber which then ignited through 2 mm nozzle diameter. The fuel flow was controlled via solenoid valve installed upstream the burner body. This valve is synchronized with high-speed camera and thus, the flame kernel propagation can be captured.  In this experiment, the effect of equivalence ratio, initial pressure, and separation distance (H/D) on combustion emissions and flames that produced from a mixture of LPG-air fuel was investigated. The flue gas analyser probe was installed inside the contained flame impingement test allowing to record CO, CO2, and unburnt HC data. The variation of the equivalence ratio used in this study are 0.8, 1.0, and 1.2. For variations in initial pressure used, 1 bar, 1.2 bar, and 1.4 bar. Variation of separation distance (H/D) that will be used are 4.5, 5.5, and 6.5. The result of this experiment shows that CO increases with increase in equivalence ratio, and initial pressure of premixed gas. For separation distance CO level decreases as the plate progressively moves away from the nozzle. CO and CO2 concentration increases as the equivalence ratio and initial pressure increases. The highest average CO concentration was 183 ppm that was found in ER 1.2 with the lowest H/D. Highest mean CO2 concentration was found in the same ER with the highest H/D, which was 4267 ppm.
Co-Authors Ahmad Khairul Faizin Akmal Irfan Majid Gunawan, N. P. Israq, Imam Luluk Edahwati Muhammad Akhsin Muflikhun Ndaru Adyono Nico Pradipta Gunawan Nuryadin, Shakti Prashida, W. Radissa Dzaky Issafira Raditya, T. Y. Saputro, W. Thevin Yoga Raditya Topayung, Christian Yuda Tria Puspa Sari Wahyu Dwi Lestari Wiliandi Saputro Wiliandi Saputro Willie Prasidha