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Risse Entikaria Rachmanita
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jesty.idpub@gmail.com
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Perumahan Sidorejo, Jl. Sidorejo Gg. Sadewa No.D3, RT. 02, Kelurahan Ngestiharjo, Kapanewon. Kasihan, Kabupaten Bantul, Daerah Istimewa Yogyakarta 55184
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INDONESIA
Journal of Engineering Science and Technology
Published by Indonesian Journal Publisher
ISSN : -     EISSN : 29856132     DOI : 10.47134/jesty
Core Subject : Science, Engineering,
Engineering Materials Science & Nanotechnology
Journal of Engineering Science and Technology (JESTY) is a peer-reviewed journal that aims to publish and disseminate original research articles on the latest developments in all fields of engineering science and technology. The journal publishes original papers in Indonesian, which contribute to understanding engineering science and improving engineering technology and education. The articles may be theoretical (including computational), experimental or both. The contribution should be unpublished before and not under consideration for publication elsewhere.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 3 Documents
 1 
Search results for , issue "Vol. 2 No. 2 (2024): May" : 3 Documents clear
Design of Air Conditioning Systems Abdulkhaev, Zokhidjon; Shairakhon, Abdujalilova
Journal of Engineering Science and Technology Vol. 2 No. 2 (2024): May
Publisher : Indonesian Journal Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47134/jesty.v2i2.23

Abstract

Climate change is one of the most pressing global problems today. Today, global warming is observed throughout the earth. As a result, the design of the natural ventilation system in the rooms does not meet the sanitary and hygienic requirements for the ventilation system. Designing an air conditioning system, choosing the right air conditioners requires the necessary knowledge and skills. Today there are many types of air conditioners. What parameters are taken into account when choosing air conditioners, what calculations are made.
Pengaruh Variasi Arus Pada Pengelasan SMAW Terhadap Uji Kekuatan Bending dan Struktur Micro Baja ST 42 Mabrullah, Riki Alan; Kosjoko, Kosjoko; Shofiyah, Rohimatush
Journal of Engineering Science and Technology Vol. 2 No. 2 (2024): May
Publisher : Indonesian Journal Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47134/jesty.v2i2.24

Abstract

This research aims to analyze the effect of variations in welding current on the mechanical strength of ST 42 steel using the SMAW welding method and E6013 electrodes with a diameter of 3.2 mm. The variations in welding current used are 90A, 100A and 110A. The tensile test results show that a welding current of 110A produces the highest tensile test value with a yield point (YP) of 8,368 MPa, maximum stress (MAX) of 9,890 MPa, and break point (BREAK) of 5,283 MPa. Bending tests indicate that a welding current of 110A produces the highest bending strength of 10.118 MPa. Microstructural observations revealed that the highest percentage of pearlite was present in welding with a current of 110A, which contributed to an increase in the tensile strength of the material. From the results of this research, it can be concluded that the increase in welding current is directly proportional to the increase in the mechanical strength of ST 42 steel
Analisis Performa Sepeda Motor Sistem Injeksi 110 CC Menggunakan ECU Standar dan ECU Standar Remap Pratama, Fharhan Hidayat; Abidin, Asroful; Bahri, Mokh. Hairul
Journal of Engineering Science and Technology Vol. 2 No. 2 (2024): May
Publisher : Indonesian Journal Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47134/jesty.v2i2.25

Abstract

The aim of this research is to analyze the effect of remapping maximum engine speed with standard ECU variations and ECU remapping on the performance of a 110cc injection motorbike engine. In this research, dynotest testing was carried out on 110cc injection motorbikes of various types of standard Electronic Control Unit (ECU) and standard Electronic Control Unit (ECU) by taking test results at engine speeds of 3000 rpm-8000 rpm with a range of 1000 rpm. The calculation method is to calculate power and torque. The test results using a dynotest tool based on power and torque obtained data as above, where the highest power and torque from the standard ECU variable was obtained at 7.4 HP and the highest torque at 9.38 Nm. Meanwhile, using the standard ECU remap, the highest power is 7.6 hp and the highest torque is 9.52. The results of the dynotest test and also calculations from Origin Pro with a comparison using a standard ECU and a remap standard ECU concluded that the use of a remap standard ECU can provide an increase in power and torque in the motorbike engine. When using a standard ECU remap, the results show that the standard ECU that has been remapped actually provides higher improvement results than the standard ECU that has not been remapped.

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