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A.Yudi Eka Risano

Department Of Mechanical Engineering, Faculty Of Engineering, Universitas Lampung Bandar Lampung, 35145, Indonesia

Author-ID : 3701082

Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Dentistry Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Public Health Social Sciences Transportation Veterinary Other

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Rancang ulang alat pengering kakao tipe drawer dryer pada usaha mandiri kakao Desa Wiyono Kabupaten Pesawaran Risano, Yudi Eka; Tanti, Novri; Paska W, Andreas
TURBO [Tulisan Riset Berbasis Online] Vol 9, No 1 (2020): Jurnal TURBO
Publisher : Universitas Muhammadiyah Metro

Cocoa is a commodity that has a high economic value. According to the 2013 FAO, Indonesia ranks third as the largest cocoa producing country in the world and accounts for 17% of world cocoa production with an area of 1,774,303.97 ha of plantations. In Lampung province, many cocoa farmers process their own garden products into dry cocoa using conventional processes and the results are judged to be less efficient so that the quality of the dried cocoa beans produced is not good. In the conventional drying process requires firewood up to 1 cubic, drying time is 10 hours, and cocoa must be stirred every 30 minutes. This study aims to redesign conventional cocoa dryers in one of Wiyono village's independent businesses to be better in terms of heat distribution, fuel consumption, and drying time. In this research, MATLAB computation and simulation software are used to simplify the design process. The design that was carried out only modified the existing dryer without changing the total dryer system by adding a heating pipe into the drying chamber to produce better quality cocoa. From the results of simulations that have been carried out on the longitudinal axis alignment pipe design, the results of heat distribution are more evenly distributed than that of the widest axis directional pipeline arrangement. With the design of the longitudinal axis arrangement of the pipe, an estimated drying time of 7.9 hours is obtained, fuel consumption is between 0.15-0.28 m3 firewood, and there is no need for stirring during the drying process.Keywords: Cocoa, redesign, dryer, MATLAB.

Pengaruh variasi campuran bahan bakar pertamax dan bioetanol 99,9% terhadap torsi mesin bensin 4 langkah Tecquipment TD201 Risano, A. Yudi Eka; Wardono, Herry; Sihombing, Gunawan Poniton R.P.
TURBO [Tulisan Riset Berbasis Online] Vol 10, No 2 (2021): Jurnal TURBO
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v10i2.1708

Bioethanol is ethanol made from plants such as cassava, sugarcane, sago, which are processed through hydrolysis, fermentation, distillation and dehydration processes. Lampung Province is one of the largest producers of cassava in Indonesia, with the total productivity of 5,451,312 tons in 2017, and 6,683,758 tons in 2018 or there was an increase of 22,61% compared to 2017. From this data, it is possible to produce bioethanol, where every 1 kg of cassava can produce 0,106 liters of bioethanol. This is what underlies this research to investigate the effect of blending bioethanol of 99% with pertamax and bioethanol on the engine torque. Blending bioethanol of 99% can homogeusly mix. The engine used in this study is a Kohler gasoline engine equipped with a VDAS (Versatile Data Accession System) instrument unit in determining the parameters of engine performance. The blending of bioethanol of 99% as big as 14% (E14) gave the highest value of torque at 1 rotation of dynamometer valve opening and engine speed of 2000 rpm.

APLIKASI MINYAK KELAPA SAWIT PADA PHOTOVOLTAIC YANG TERINTEGRASI PADA DINDING BANGUNAN SEBAGAI PENDINGIN PASIF UNTUK MENINGKATKAN EFISIENSI DAN MENURUNKAN BEBAN PENDINGIN RUANGAN A Yudi Eka Risano; M Dyan Susila E S; Yoga Pratama
TURBO [Tulisan Riset Berbasis Online] Vol 6, No 1 (2017): Juni 2017
Publisher : Universitas Muhammadiyah Metro

Menanggapi isu green building dan penggunaan clean energy yang sangat santer saat ini, pemanfaatan energi terbarukan menjadi meningkat. Penggunaan energi surya menggunakan photovoltaic (PV) pada sistem Building Intergated Photovoltaics (BIPV) akan menambah pasokan listrik dan mengurangi ketergantungan terhadap pembangkit listrik. Menurut M. Farid dan Abhat A. Low dalam jurnal MONEV Muhammad Irsyad, Penambahan Minyak Kelapa Sawit pada Photovoltaic yang Terintegrasi pada Dinding Bangunan untuk Meningkatkan Efisiensi dan Menurunkan Beban Pendingin Ruangan (2012), persoalan tiap kenaikan 1oC temperatur PV yang mengurangi efisiensi PV 0,4 – 0,5% dapat disiasati dengan integrasi Phase Change Material (PCM). Selain itu dengan sifatnya sebagai pendinginan pasif, masuknya kalor ke dalam ruangan juga akan direduksi. Penelitian ini dilakukan untuk melihat karakteristik efisiensi PV dan perambatan kalor pada ruangan model BIPV yang diintegrasikan dengan PCM CPO. Pengujian dilakukan dengan membandingkan dua model BIPV yang dengan dan tanpa PCM CPO. Variasi dilakukan dengan kemiringan BIPV 45º dan 30º masing-masing orientasi timur dan barat. Setelah dilakukan empat variasi percobaan, BIPV dengan kemiringan 30º lebih unggul dibanding dengan kemiringan 45º. Perbandingan perpindahan panas dinding dalam menuju ruang BIPV dengan PCM CPO kemiringan 30º orientasi barat lebih signifikan dan stabil, terutama pada intensitas 850 W/m² perbandingan panas dari dinding dalam menuju ruang yang sebesar 0,4012 W dapat diredam dengan menggunakan CPO hanya sebesar 0,2596 W. Kemudian pada puncak perpindahan panas tertinggi dari dinding dalam ke ruang model BIPV tanpa CPO dengan intensitas 923 W/m² mencapai 0,43426 W, dengan penambahan PCM CPO hanya 0,25913 W. Perbedaan efisiensi dengan pemakaian PCM CPO juga lebih unggul hingga menaikkan efisiensi 5,75% saat intensitas 982 W/m² sudut penyinaran 120 º dari timur.Kata kunci : green building, clean energy, photovoltaic, Bahan Perubah Fasa, Minyak Kelapa Sawit, pendingin pasif.

The influence of friction stir welding tool shape on quality of AZ31 Magnesium welding product Irza Sukmana; Fauzi Ibrahim; Ahmad Yudi Eka Risano
TURBO [Tulisan Riset Berbasis Online] Vol 10, No 2 (2021): Jurnal TURBO
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v10i2.1728

Magnesium is one type of material that can be used as a base metal in welding. Magnesium has superior properties, including low density, good ductility, medium strength and excellent corrosion resistance. Because of its properties, the metal is widely used, ranging from household goods to aircraft components. These base metals are categorised as mild when viewed from the specific gravity of magnesium (1.74 g/cm3 and 1.83 g/cm3). Welding is the process of merging two or more base metals which are merged at the contact surface with or without additives or fillers. Welding is divided into two main categories, Liquid and Solid-State Welding. Friction Stir Welding (FSW) is an example of Solid-State Welding (Non-Fusion Welding). FSW is a friction welding process that twists the tool by utilising heat energy and pressing without additives or fillers until the base metal is in a phase change. The welding process in this study used the cone and spiral shape with a tool rotation at 2000 rpm and a welding speed of 16 mm/min. The tests carried out are tensile and hardness testing. This study found that the tool shape, tool rotation, and welding speed significantly affect the mechanical properties of the welded AZ31 magnesium. The spiral shape will make the welding area wider. Although the cone shape will have a small area, the weld will look perfect with good tensile strength, while the hardness values for the two tool shapes are almost the same, but the cone shape is better.

Pengaruh Filter Udara Berbahan Zeolit dan Fly ash Teraktivasi HCl-Fisik terhadap Prestasi Mesin Sepeda Motor 4 Langkah Herry Wardono; Abdul Aziz; A Yudi Eka Risano
TURBO [Tulisan Riset Berbasis Online] Vol 8, No 1 (2019): Juni 2019
Publisher : Universitas Muhammadiyah Metro

Menurut Direktur Jendral Minyak dan Gas Bumi (MIGAS) Kementrian Energi dan Sumber Daya Mineral (ESDM) cadangan minyak Indonesia hanya bisa bertahan hingga tahun 2028. Menanggapi permasalahan tersebut, salah satu cara adalah menghemat penggunaan bahan bakar minyak dengan memanfaatkan fly ash batubara dan zeolit alam sebagai penyaring udara (filter) kendaraan. Zeolit dan fly ash memiliki kemampuan menangkap uap air dan gas nitrogen dalam udara, sehingga proses pembakaran menjadi lebih sempurna dan meningkatkan prestasi mesin menjadi lebih baik.Di dalam zeolit dan fly ash terdapat zat pengotor sehingga perlu dilakukannya aktivasi HCl untuk membersihkan zat pengotor tersebut. kemudian zeolit dan fly ash dibuat berbentuk bulat dengan ketebalan 3mm dan berdiameter 10mm dan disusun menyerupai bentuk filter asli dari kendaraan motor uji. Temperatur aktivasi fisik (pengovenan) pelet zeolit dan fly ash yang digunakan 150oC, 175oC, 200oC dan 225oC. Konsentrasi kimia yang digunakan normalitas HCl 0,25N, 0,5N, 0,75N, 1N, 1,5N dan 2N. Dengan komposisi zeolit dan fly ash Z0:F100, Z25:F75, Z50:F50, Z75:F25 dan Z100:F0. Penelitian ini menggunakan 4 variasi pengujian yaitu pengujian jalan, pengujian stasioner, pengujian akselerasi dan pengujian emisi gas buang.Filter komposisi terbaik adalah filter Z75:F25 total persentasi sebesar 55,09%. Filter aktivasi kimia HCl terbaik adalah filter 1N total persentasi sebesar 75,74%. Filter temperatur aktivasi fisik (pengovenan) terbaik adalah filter 225oC total persentasi sebesar 58,31%. Pada pengujian emisi gas buang kadar gas CO terbaik filter Z75:F25 1N 225oC sebesar 0,47% pada 2500rpm. Penurunan kadar HC terbaik filter Z75:F25 1N 225oC sebesar 37,3ppm pada 2500rpm dan peningkatan gas CO2 terbaik filter alami 0,84% pada 2500rpm, 0,98% pada 4500rpm.Kata kunci : Filter udara zeolit dan fly ash, aktivasi HCl,Prestasi sepeda motor

PERANCANGAN ULANG ALAT PENGERING BIJI KAKAO TIPE ROTARI SEDERHANA PADA USAHA MANDIRI DI DESA WIYONO KABUPATEN PESAWARAN Ahmad Yudi Eka Risano; Novri Tanti; Maulana Efendi
TURBO [Tulisan Riset Berbasis Online] Vol 6, No 2 (2017): Desember 2017
Publisher : Universitas Muhammadiyah Metro

Penelitian ini dilakukan pada alat pengering biji kakao untuk proses pengeringan biji kakao milik Usaha Mandiri di Desa Wiyono, Kabupaten Pesawaran. Penelitian ini bertujuan untuk merancang ulang alat pengering biji kakao tipe rotari sederhana agar proses pengeringan lebih efektif dan didapat kualitas hasil pengeringan biji kakao lebih baik. Perhitungan yang dilakukan meliputi dimensi alat pengering, termal yang terjadi pada alat pengering, dan kebutuhan bahan bakar pada alat pengering biji kakao tipe rotari sederhana, serta dilakukan simulasi pada model alat pengering biji kakao tipe rotari sederhana yang telah dirancang menggunakan Software Autodesk CFD untuk mengetahui sebaran suhu pada model alat pengering yang telah dirancang. Dari hasil penelitian yang telah dilakukan alat pengering biji kakao tipe rotari sederhana ini memiliki dimensi ruang pengering dengan diameter 90 cm, panjang 108 cm, dan tebal 1,2 mm. sebaran suhu pada ruang pengering sebesar 65,06oC , kalor yang dibutuhkan untuk proses pengeringan biji kakao sebesar 1028906,047 KJ, waktu yang dibutuhkan untuk proses pengeringan ± 8 jam 14 menit dan bahan bakar yang dibutuhkan untuk proses pengeringan sebanyak 302,62 kg atau 0,30260 kubik serta sebaran suhu rata-rata hasil simulasi menggunkan Software Autodesk CFD sebesar 63,5116oC. Kata Kunci: kakao, pengeringan, Autodesk CFD, suhu

PEMANFAATAN CAMPURAN ZEOLIT DAN FLY ASH BATUBARAYANG TELAH DIAKTIVASI FISIK TERHADAP AKSELERASI MESIN SEPEDA MOTOR 4-LANGKAH Herry Wardono; Ahmad Yudi Eka Risano; Adi Ernadi
TURBO [Tulisan Riset Berbasis Online] Vol 7, No 1 (2018): Juni 2018
Publisher : Universitas Muhammadiyah Metro

Energy consumption in Indonesia is quite high, almost 96% is supplied from fossil fuel ( crude oil 48%, gases 18%, and coal 30%). From the total of energy consumption, it can be seen that almost 50% is gasoline. Thus, it is necessary to attain a certain aim in saving fossil fuel consumption. One of the ways is the utilization of zeolite and coal fly ash mixture as engine air filter. The mixture of zeolite and coal fly ash have a specific ability to trap nitrogen gases and water vapor in air, so that only oxygen enters the combustion chamber. Thus, the combustion process reaches the optimal condition and engine performance works better. Before applying, zeolite and fly ash were mixed with the comparisons of zeolite 0% : fly ash 100%, zeolite 25% : fly ash 75%, zeolite 50% : fly ash 50%, zeolite 75% : fly ash 25%, and zeolite 100% : fly ash 0%. The mixture of zeolite and fly ash was made in the form of pellet and activated physically within the temperature of 100 ºC (naturally), 150 ºC, 175 ºC, 200 ºC, and 225 ºC. Wheres various mass filter used were 50% (13,75 grams), 75% (20,62 grams) and 100% (27,50 grams). The pellets were arranged resemble a filter and place on the case of engine air filter. The purpose of this testing is to find out the effect of temperature activation and the filter mass variations as well as the composition of zeolite and fly ash mixture toward the performance of four step gasoline engine in acceleration testing. The best acceleration achieved is 12,61% (2,41 seconds faster ) taken from the test using filter of Z50:F50 mixture, with mass variation of 100% within temperature of 225 °C.Keywords: Filter of zeolite and coal fly ash,air adsorbent, engine acceleration.

Co-Authors . Harmen . Sulistiyono Abdul Aziz Adi Ernadi Agus Sugiri Agus Sugiri Agus Sugiri, Agus Ahmad Riszal Ahmad Su'udi Ahmad Suudi Ahmad Suudi Akhmad Riszal Amrul Amrul Anandati, Ghea Maulidaco Andy Abdel Hakim Angga Wijaya, Angga Anwar, Hasrul Ari Andrew Pane Arifin Kusumo Wicaksono Bayu, Chandra Choirul Anam Djana, Miftahul Eko Yohanes Erisha Putri Eriyadi, Riko Hamdani, Fadil Harmen Harnowo Supriadi, Harnowo Herry Wardono HERU WAHYUDI Hidayat, M Thariq Ibrahim, Fauzi Irza Sukmana Irza Sukmana Irza Sukmana Irza Sukmana Irza Sukmana, Irza Khairul Anwar Khairul Ummah Khairul Ummah Lamsihar S Tamba M Thariq Hidayat M. Dyan Susila M. Dyan Susila ES M. Haviz M. Rangga Saputra Mahruri Arif Wicaksono Mahruri Arif Wicaksono Maulana Efendi Mayasari, Rizka Meylia Rodiawati Muhammad Badaruddin Muhammad Hanif Muhammad Irsyad Muhammad Irsyad Nafrizal Nandi Haerudin Noorhidana, Vera A Novri Tanti Novri Tanti, Novri Panji Kurniawan Paska W, Andreas Rahmat Ramadhan Renardy, B Niko Rendy Dwi A.P. Riszal, Ahmad Riszal, Akhmad Rizal Adi Saputra Rizal Adi Saputra Sandy Dwi Hardin Sari, Devi Kurnia Sihombing, Gunawan Poniton R.P. Simparmin br Ginting Subekti Bagus W SUGIYANTO Tarkono Tarkono Tebu, Yohanes Yonathan Thalya Miranda Thohirin, Muh Vadival, G N Wijaya, Riki C Yoga Pratama Zulhanif

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