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All Journal Mechanova Rekayasa Mesin MEKANIKA - JURNAL TEKNIK MESIN Otopro
Teng Sutrisno
Universitas Kristen Petra
Automotive Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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OPTIMASI ANGLE OF ATTACK UNTUK PENINGKATAN KOEFISIEN LIFT PADA AIRFOIL TURBIN ANGIN SUMBU HORISONTAL Pangraldi, Christian; Suprianto, Fandi Dwiputra; Sutrisno, Teng
Mechanova Vol 1 (2013): Semester gasal 2013-2014
Publisher : Mechanova

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Abstract

Wind turbine application as the use of renewable energy sources has been widely used recently as an alternative energy in goal replacing non-renewable energy. This thesis focuses on the optimization of other research conducted lift coefficient of horizontal wind turbine blades. During this optimization systems in wind turbines is still not been developed widely so that the level of efficiency still needs to be researched and developed. This optimization, is expected to improve the efficiency and applicability of horizontal wind turbine especially in energy-efficient buildings that will be built by Petra Christian University.Optimization is done starting from the assessment of AoA on 3 pieces of the NREL type S airfoil, the validation of numerical experiments, and more complex system of blade configurations as the optimization project. Numerical assessments were performed using CFD (Computational Fluid Dynamics) software.From the results of assessments conducted, Angle of Attack the optimal airfoil S-833 (primary) is at AoA 8 ˚, while for S-834 (tip) is 8.5 ˚, and for S-835 (root) is 7 ˚. This study has been able to run well by getting trend graphs are virtually identical, but there are some differences in the validation study numerically the experiment due to limitations in the manufacturing of the experimental device.
MEREKONDISIKAN MESIN PROTOTYPE UNTUK LOMBA INDONESIA MARATHON CHALLENGE 2014 Gidion, Peter Dea; Sutrisno, Teng
Mechanova Vol 1 (2014): Semester gasal 2014-2015
Publisher : Mechanova

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Dunia otomotif dewasa ini dihadapkan pada permasalahan akan menipisnya pasokan bahan bakar fossil. Direktorat Jendral Pendidikan Tinggi (Dikti) mengadakan perlombaan pengembangan teknologi otomotif yang bernama Indonesia Energy Marathon Challenge (IEMC) untuk meningkatkan kesadaran akan pentingnya penghematan energi. Universitas Kristen Petra ikut berpartisipasi dan berhasil lolos ke IEMC 2014, namun masih banyak kekurangan pada kendaraan yang ikut dilombakan.        Pada sistem pengapian dan sistem pelumasan kendaraan, dimana sistem pengapian tidak dalam keadaan normal dan sistem pelumasan yang masih standar, mengakibatkan kendaraan menjadi kurang efisien dalam pemakaian bahan bakar, maka pada sistem pelumasan dilakukan pendesainan ulang, serta pada sistem pengapian dilakukan rekondisi agar performa mesin menjadi lebih baik dan menjadi lebih irit.Dari hasil rekondisi yang telah dilakukan pada sistem pelumasan dan pengapian, didapatkan konsumsi bahan bakar rata-rata sebesar 47 km untuk satu liter . Serta sistem pelumasan pada mesin mampu melumasi dengan baik dan sistem pengapian dapat berjalan dengan normal. roda yang semakin besar, jarak pengereman yang dihasilkan juga semakin panjang.
DESAIN ULANG KNALPOT RACING 3V3 GUNA MENINGKATKAN KINERJA MESIN YAMAHA RX KING Janaprasetya, Reynold Andika; Sutrisno, Teng
Mechanova Vol 1 (2014): Semester gasal 2014-2015
Publisher : Mechanova

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Abstract

Two stroke motorcycle has a grat power, such as Yamaha RX King which is the study of the experimental material. In a two stroke motorcycles, the biggest contribution to power is exhaust.Research process of 3v3 exhaust used experimental methods, so need some tools and materials in the manufacture of exhaust. Performance test use dyno test analises.The making exhaust use formulas, these fomulas is taken from Gordon’s book. With these experiment are shown the engine performance improve up to 30%.
PENINGKATAN KINERJA TOYOTA AVANZA 1.5 DENGAN PENAMBAHAN SUPERCHARGER ELEKTRIK Hadianta, Christian; Sutrisno, Teng
Mechanova Vol 1 (2014): Semester gasal 2014-2015
Publisher : Mechanova

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Abstract

Di era mobilitas ini, perkembangan teknologi kendaraan bermotor terutama mobil terus berkembang. Peningkatan kinerja Toyota avanza 1.5 dengan menggunakan supercharger konvensional yang berfungsi memasukan udara ke ruang bakar yang biasa dilakukan untuk meningkatkan kinerja mesin menggunkan tenaga dari putaran mesin. Sedangkan supercharger elektrik bekerja seperti halnya supercharger konvensional dengan  menggunakan sumber tenaga penggerak motor listrik DC 12 V yang diambil dari aki mobil tanpa memebebani mesin. Dengan adanya penambahan supercharger elektrik pada Toyota avanza terjadi penigkatan torsi dan daya. Namum secara persen tidak signifikan tetapi torsi dan daya meningkat pada rpm 1500-3500.
OPTIMASI PARAMETER PROSES PEMBUATAN BIOETANOL SORGUM DAN PENGARUH TERHADAP UNJUK KERJA MOTOR BENSIN Sutrisno, Teng; Anggono, Willyanto; Lay, Kurniawaan; Simanjuntak, Melvin Emil
Otopro Vol 16, No 2 (2021)
Publisher : Jurusan Teknik Mesin Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/otopro.v16n2.p39-43

Abstract

Bioethanol is a renewable fuel that resembles gasoline, bioethanol is produced from fermentation and distillation processes. One of the raw materials that produce bioethanol is Sorghum. Sorghum was chosen because it is superior to other plants. This study aims to analyze fermentation longtime and enzyme composition for the best composition to produce bioethanol from sorghum, and determine the quality of sorghum bioethanol. This research Sorghum  bioethanol produced with an alcohol content of 94%. The test and analysis variables used were 31 samples. The results of this study are as follows : The best fermentation time is 4 days, the enzyme and yeast variable for the most volume of alcohol is 7% yeast 5% enzyme, the enzyme and yeast variable for the highest alcohol content is 7% yeast 7% enzyme. Laboratory test results when compared with PERTAMINA's standard regulations, especially Pertalite RON 90, Several parameters have rejected the regulations. Therefore sorghum bioethanol is used as an additive for Gasoline. Sorghum bioethanol is made addictive to gasoline RON 90, namely B10 (bioethanol sorghum 10%) and B20 (bioethanol sorghum 20%). It would cause an increase in the performance of gasoline engines.
PENGARUH TEKANAN VAKUM TERHADAP KEMURNIAN OKSIGEN PADA PROSES VACUUM PRESSURE SWING ADSORPTION: - Sugondo, Amelia; Sutrisno, Teng; Saputra , Richard M. Saputra
Jurnal Rekayasa Mesin Vol. 15 No. 3 (2024)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v15i3.1628

Abstract

Air pollution is an environmental problem that interferes with human health. This pollution is difficult to avoid due to the development of industry and transportation which are not fully environmentally friendly. Air pollution contributes 15-30% of health problems, especially breathing. One of the respiratory diseases is chronic obstructive pulmonary disease (COPD), the highest cause of death of the four other types of respiratory diseases. COPD sufferers need to get fresh air with a high oxygen content. The oxygen requirement can be produced by using cryogenic, adsorption and membrane technology. This study developed equipment for long-term oxygen therapy for COPD patients. Several adsorption methods have been developed, namely Vacuum Swing Adsorption (VSA), Pressure Swing Adsorption (PSA) and Vacuum Pressure Swing Adsorption (VPSA). VPSA was designed and used for this research because it can produce oxygen purity higher and more efficiently than others. This method utilizes vacuum pressure. VPSA was designed with 2 beds containing 13x zeolite added with activated alumina and 1 bed containing carbon molecular sieve (CMS). Experiments were carried out with a vacuum pressure setting of 0.35 bar, 0.5 bar and without vacuum to study the effect on oxygen purity, recovery process and productivity. From the experiments it was found that increasing the vacuum pressure can produce higher oxygen purity, but the opposite is true for recovery conditions from zeolite and oxygen productivity.
Rancang Bangun dan Pengujian Pengering Jamur Tiram dengan Satu Kolektor Surya Simanjuntak, Melvin Emil; Sitorus, Melvin B. H.; Manurung, Nelson; Ginting, Berta Br.; Lumbantoruan, Henry H.; Sutrisno, Teng; Kastiawan, I Made; Yulianto, Adam Eko; Rohman, Adi Prasetya
MEKANIKA : Jurnal Teknik Mesin Vol 8 No 2 (2022): December
Publisher : Program Studi Teknik Mesin, Universitas 17 Agustus 1945 Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (373.176 KB) | DOI: 10.30996/jm.v8i2.7285

Abstract

Indonesia merupakan negara tropis yang memiliki iklim yang baik untuk pertanian. Di Indonesia terdapat dua musim yaitu musim panas dan musim hujan. Hasil pertanian tentunya negara yang mayoritas agraris dan memiliki zona iklim tropis Jamur merupakan tumbuhan alami yang tidak mengandung klorofil. Dimana pada alat terjadi dua jenis perpindahan panas yaitu secara radiasi dan konveksi. Perancangan alat dilakukan dengan langkah pertama yaitu membuat kerangka, rangka utama berukuran 1443 x 2379 x 1254 mm dan kolektor berukuran 1014 x 500 x 35 mm, kemudian untuk menyusun kolektor mulai dari ACP, styrofoam, rockwoll, plat absorber, dan ditutup dengan kaca, dan rak penampung yang berukuran 500 x 400 x 35 mm. dimana prinsip kerja mesin yaitu mengalirkan panas yang telah diserap melalui kolektor tepat nya pada plat absorber dan dialirkan kedalam ruang pengering. Berdasarkan hasil pengujian maka disimpulkan bahwa rak ke 4 merupakan rak yang paling cepat panas dengan kadar air yang tersisa 2,94 %, dan rak 1 merupakan rak yang paling lambat panas dengan kadar air yang tersisa 22,87 %.
Co-Authors A.A. Ketut Agung Cahyawan W Christian Hadianta Christian Pangraldi Ginting, Berta Br. I Made Kastiawan, I Made Lay, Kurniawaan Lumbantoruan, Henry H. Melvin Emil Simanjuntak Nelson Manurung, Nelson Peter Dea Gidion Reynold Andika Janaprasetya Rohman, Adi Prasetya Saputra , Richard M. Saputra Sitorus, Melvin Bismark Hamonangan Sugondo, Amelia Willyanto Anggono Yulianto, Adam Eko