Claim Missing Document
Check
Articles

Found 3 Documents
Search

PENINGKATAN KEKUATAN TARIK SAMBUNGAN SINGLE V-GROOVE BAJA ST37 DENGAN VARIASI ARUS PENGELASAN SMAW Alief Muhammad; Dani Hari Tunggal Prasetiyo; Akbar Anugrah Ikhsani; Setyo Pambudi
ROTOR Vol 14 No 2 (2021)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (251.024 KB) | DOI: 10.19184/rotor.v14i2.29471

Abstract

Welding and casting processes have become an important focus in the development of industry 5.0. In improving welding efficiency, increasing the number of tests on many variables is the first step in optimizing production. Welding optimization aims to find the best solution and result in a production process, it takes a lot of welding experimental data to be able to compare it. The Shielded Metal Arc Welding (SMAW) is becoming very common in all industries. SMAW has several variables that can affect welding results, one of which is the electric current used. This study aims as an effort in the current industrial development is to present data on the effect of SMAW welding electric current on its tensile strength for optimization. In this study, the mechanical strength tested was tensile strength and current susceptibility used was 80 to 140 Ampere commonly used using ST-37 Steel. The highest maximum loading value occurred in the sample with a current of 80 A of 72.78 kN. However, the highest maximum stress, fracture, and yield occurred in the sample with a current of 140 A of 734.66; 594.28; 558.29 MPa.
Heating Treatment of Incoming Air Combustion Chamber on the E20 Fuel Mixture: Perlakuan panas udara masuk ruang bakar pada campuran bahan bakar E20 Akbar Anugrah Ikhsani; Nurkoyim Kustanto; Boy Arief Fachri
Logic : Jurnal Rancang Bangun dan Teknologi Vol. 23 No. 1 (2023): March
Publisher : Unit Publikasi Ilmiah, P3M, Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31940/logic.v23i1.49-54

Abstract

This research was conducted to improve engine performance with a mixture of ethanol and gasoline, because the mixture of ethanol and gasoline fuel causes the value of the flash point and evaporation of fuel heat to be higher. To overcome this, the air entering the combustion chamber is carried out by being heated to 26°C (standard), 30°C, 40°C and 50°C, the fuel used is the E20 with engine revolutions of 2000 to 8000 revolutions per minute. The results showed that the highest torque of E20 fuel at 30°C with a value of 9.004 Nm increased by 0.27%. At the highest power, it is located at 30°C with a power of 5.99 kW 0.5%. For the lowest consumption in the 2000 round, it was found in the 30°C temperature treatment with a value of 1.4 Kg / Hp.Hour and for exhaust gas emissions the lowest hydro carbon value was found in the 30°C temperature treatment while the lowest value of carbon monoxide was found at the 50°C temperature treatment. These results show that the air heating treatment can improve engine performance.
Heating Treatment of Incoming Air Combustion Chamber on the E20 Fuel Mixture: Perlakuan panas udara masuk ruang bakar pada campuran bahan bakar E20 Akbar Anugrah Ikhsani; Nurkoyim Kustanto; Boy Arief Fachri
Logic : Jurnal Rancang Bangun dan Teknologi Vol. 23 No. 1 (2023): March
Publisher : Unit Publikasi Ilmiah, P3M, Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31940/logic.v23i1.49-54

Abstract

This research was conducted to improve engine performance with a mixture of ethanol and gasoline, because the mixture of ethanol and gasoline fuel causes the value of the flash point and evaporation of fuel heat to be higher. To overcome this, the air entering the combustion chamber is carried out by being heated to 26°C (standard), 30°C, 40°C and 50°C, the fuel used is the E20 with engine revolutions of 2000 to 8000 revolutions per minute. The results showed that the highest torque of E20 fuel at 30°C with a value of 9.004 Nm increased by 0.27%. At the highest power, it is located at 30°C with a power of 5.99 kW 0.5%. For the lowest consumption in the 2000 round, it was found in the 30°C temperature treatment with a value of 1.4 Kg / Hp.Hour and for exhaust gas emissions the lowest hydro carbon value was found in the 30°C temperature treatment while the lowest value of carbon monoxide was found at the 50°C temperature treatment. These results show that the air heating treatment can improve engine performance.