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Muhammad Riziq Mustofa
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Analisa Proses Repair dan Pengukuran Vibrasi Motor Listrik Compressor 250 Kw di PT. XYZ Muhammad Riziq Mustofa; Rizal Hanifi
Jurnal Ilmiah Wahana Pendidikan Vol 8 No 12 (2022): Jurnal Ilmiah Wahana Pendidikan
Publisher : Peneliti.net

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (369.06 KB) | DOI: 10.5281/zenodo.6943873

Abstract

The use of induction motors without proper maintenance, or the use of motors that have been used for a long time will quickly be damaged, such as overheating (overhaul), overloading the power output, burning the motor, etc. All damage can be experienced by induction motors. Therefore, one way that can be done is by repairing (repair). Assessing an induction motor that has been repaired is to analyze the vibration of the induction motor, which must have a value according to ISO standards. In this study using a 250 kW induction motor as the object of research, the repair analysis starts from the initial inspection for physical damage, electricity, and measurements according to standards. Followed by the induction motor repairing process, then re-measurement to assess the repair according to applicable standards and analysis of vibration velocity and acceleration is carried out to determine the final result. The results of repairing a 250 kW electric motor on the bearings have undergone changes and repairs by adjusting the EASA tolerance hole, the shaft requires balancing treatment, and the vibration results measure in the horizontal (H), vertical (V), and axial (A) directions of the induction motor with Hinlet Veleocity RMS value 0.293 outlet
Simulasi pada Modifikasi Upper Hose Radiator dengan Pipa Bersirip Menggunakan Software Ansys Muhammad Riziq Mustofa; Viktor Naubnome; Farradina Choria Suci
Jurnal Ilmiah Wahana Pendidikan Vol 8 No 21 (2022): Jurnal Ilmiah Wahana Pendidikan
Publisher : Peneliti.net

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (193.925 KB) | DOI: 10.5281/zenodo.7273163

Abstract

Radiator hoses are generally round and made of polymer rubber. Utilization of this modified hose aims to distribute heat in the coolant to the environment in the hose using a finned pipe so that the heat of the cooling liquid can be wasted with the fins when it is passed, so that when entering the radiator the liquid has a lower temperature. The simulation was carried out using the CAE Ansys Student 2021 R2 software. In this study, water was used as a fluid with an inlet temperature of 360 K, 20 fins, 3 types of fins, namely square, circular, helical and 2 materials, namely aluminum and low carbon steel. The results show that the lowest outlet temperature is in the circular fin with low carbon steel material with a temperature of 348.4 K, and the finned pipe that has a high temperature is the aluminum square fin pipe with a temperature of 359.9 K. There is a change in temperature in each type of fin and material. indicates a decrease in temperature in the flow, this will be very useful and will make the radiator work better because the incoming temperature is lower.
Co-Authors Farradina Choria Suci Naubnome, Viktor Rizal Hanifi