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All Journal Semesta Teknika Journal of Robotics and Control (JRC) Jurnal Amplifier: Jurnal Ilmiah Bidang Teknik Elektro dan Komputer METAL : Jurnal Sistem Mekanik dan Termal
Novalio Daratha
Universitas Bengkulu
Aerospace Engineering Automotive Engineering Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Journal : METAL : Jurnal Sistem Mekanik dan Termal

 1 
Optimalisasi Dimensi Tabung Roasting Kopi Kapasitas 2 kg dengan Pendekatan Model Elemen Hingga Dedi Suryadi; Bowo Anugrah; Ahmad Fauzan Suryono; Agus Suandi; Novalio Daratha
METAL: Jurnal Sistem Mekanik dan Termal Vol 6, No 1 (2022): Jurnal Sistem Mekanik dan Termal (METAL)
Publisher : Department of Mechanical Engineering, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (718.232 KB) | DOI: 10.25077/metal.6.1.1-7.2022

Abstract

Coffee roasting is an important process in the coffee industry that determines the quality of the coffee beverage obtained. The roasting process is carried out in a cylindrical tube having high temperature. Therefore, thermal stress on the cylindrical tube (drum) should be focused. In this paper, both appropriate materials selection and optimal dimension of the roaster drum are considered. Drum is given both thermal load of 200oC and a coffee load of 2 kg. Here, Aluminum Alloy 5083 and Stainless Steel 304 are analyzed as drum materials because these materials are recommended for foods. Finite element method is used for drum analysis with axisymmetric model. Moreover, optimal dimension of drum can be obtained by varying the length, diameter and thickness. The results show that Stainless Steel 304 is suitable material for drum under both thermal load and both thermal load of 200oC and a coffee load of 2 kg. While, dimensions of drum are length of 450 mm and diameter of 180 mm with thickness of drum larger than 1 mm.
Meja Getar dengan Sistem Tiga Penggerak Pneumatik untuk Skala Laboratorium Dedi Suryadi; Hade Syamitra; Ahmad Fauzan; Novalio Daratha; Indra Agustian
METAL: Jurnal Sistem Mekanik dan Termal Vol 5, No 1 (2021): Jurnal Sistem Mekanik dan Termal (METAL)
Publisher : Department of Mechanical Engineering, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2534.521 KB) | DOI: 10.25077/metal.5.1.44-50.2021

Abstract

This study aims to develop a laboratory scale shaking table that can simulate vibrations level by using PLC as controller. Mechanism of the shaking table consists of cylinder pneumatic drive system, where the movement comes from 3 of pneumatic cylinders connected to the solenoid vale later controlled using PLC OMRON CP1L. Therefore, it can produce vertical and horizontal translational movements. Dynamic response can be obtained by varying frequency of 1 Hz, 2 Hz, 3 Hz, 4 Hz, and 5 Hz. Moreover, loads are also varied by 1kg, 2kg and no load. The results of this study indicate that the shaking table is successfully developed that can perform 2 types of translational movements in the vertical and horizontal direction that operate at a frequency of 1 Hz to 5 Hz with maximum load of 2 kg. Amplitude of shaking table increases by decreasing frequency input and loading value. Also, amplitude increases by decreasing value of the valve openings.
Co-Authors Afriyastuti Herawati Agus Suandi Ahmad Fauzan Ahmad Fauzan Suryono Bagus Imam Proayoga Bowo Anugrah Dedi Suryadi Hade Syamitra Hendro Tanamal Hendy Santosa Ika Novia Anggraini Indra Agustian Indra Agustian Indra Agustian M. Rasyid Ridlo Ruvita Faurina