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All Journal Dinamika : Jurnal Teknik Mesin Accurate: Journal of Mechanical Engineering and Science Research Journal of Social Economics Empowerment (ROSEE)
Suparno, Joko
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Economics, Econometrics & Finance Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences

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Journal : Accurate: Journal of Mechanical Engineering and Science

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Rancang Bangun Sistem Automatic Semi Returnless Berbasis Arduino Uno pada Engine Caterpillar C27 Studi Kasus PT. Sapta Indra Sejati Widi Achmad Sukisno, Sulis; Suparno, Joko; Ardiansyah Halim, Dimas
Accurate: Journal of Mechanical Engineering and Science Vol. 3 No. 1 (2022): April 2022
Publisher : Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/accurate.v3i1.1508

Abstract

Pump units with a Caterpillar C27 engine with an EUI (Electronic Unit Injector) fuel system that often has low power due to filter clogging at PT. Sapta Indra Sejati. Filter cloggingoccurs due to due to the thickened biofuel content and creates a crust. If the machine has a problem, the mining process can be disrupted because the coal loading area is flooded. This study aims to create an additional system in the form of a automatic semi-returnless where the fuel return line is changed automatically into the filter because the fuel return is clean. The movement of the return control valve is regulated by a microcontroller which is programmed according to specifications and needs. The microcontroller used is Arduino Unowith pressure and temperature sensors. Arduino Uno is programmed when the engine will experience low power with a fuel pressure of 400 kPa then the return path is changed to semi returnless. With a change in the semi returnless path, the pressure becomes stable at 380 kPa and the engine RPM is stable with power that is still maintained. The advantages of semi-returnless system are that filter replacement costs can be reduced and production time is not interrupted.
Analisis Daya Serap Suara Material Berbasis Polyester Staple Fibre Untuk Karpet Lantai Kendaraan Joko Sumbogo, Yuliarto; Ardiansyah, Dimas; Suparno, Joko; Riski, Kautzar; Andri W.H, Dwi
Accurate: Journal of Mechanical Engineering and Science Vol. 4 No. 1 (2023): April 2023
Publisher : Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/accurate.v4i1.1791

Abstract

This research studies about the ability of the acoustic properties or absorption of the vehicle floor carpet material which consists of several forming components, with an experimental method using the tube impedance method. The components of this car floor carpet material consist of a skin section which includes a surface made of polyester staple fiber plastic fiber, binders made of latex SBR material, backing made of Polyethylene (PE) powder and the under layer made of Polyester Fiber material (PET) Silencer. The carpet material for the vehicle floor was made into three samples to determine the average of sound absorption coefficient. The sound absorption coefficient was obtained from testing the flat test sample using the ASTM E1050-98 tube impedance method. The use of Polyethylene (PE) powder as a backing for floor mats has a sound absorption coefficient with a rating of B (above 0.8) at a frequency of 3,000 Hz. While the sound absorption coefficient reaches the highest point of 0.99 at a frequency of 3,000 Hz. This is because the backing with Polyethylene (PE) powder material has porous holes. The micro surface is used as a layer of air space so that it can effectively reduce and increase the absorption of sound that occurs inside the vehicle when driving. The sound absorption coefficient of vehicle floor carpet increases significantly at low frequencies and slightly decreases at high frequencies
Co-Authors Adyan, Muhammad Ariq Andri W.H, Dwi Dimas Ardiansyah Halim, Dimas Ardiansyah Joko Sumbogo, Yuliarto Prasetyawati, Erlina Riski, Kautzar Sumbogo, Yuliarto Joko Widi Achmad Sukisno, Sulis Wijaya, Anugerah Bima