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Mega Gemala
Politeknik Negeri Batam, Kepulauan Riau, Indonesia
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Journal : Jurnal Teknologi dan Riset Terapan (JATRA)

 1 
Elemental Qualification of Welded Stainless Steels By XRF Positive Material Identification Mutiarani Mutiarani; Afiev Ferdilla Sidiq; Adhe Aryswan; Mega Gemala; Tian Havwini
Jurnal Teknologi dan Riset Terapan (JATRA) Vol 4 No 1 (2022): Jurnal Teknologi dan Riset Terapan (JATRA) - June 2022
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jatra.v4i1.3699

Abstract

Tests for determining the elemental composition of stainless steel (SS) in the weld metal and Heat Affected Zone (HAZ) were carried out using the Non-Destructive Evaluation (NDE) Positive Material Identification (PMI) method with X-ray Fluorescence (XRF) technology. This study aimed to identify the chemical composition of metals using the PMI method with XRF technology as a determinant of the feasibility of the stainless-steel materials tested, namely SS 316 and SS 2205. The results of the tests were then matched with the applicable standards, namely ASME Section II Part A for pipe materials and ASME Section II Part C for welding electrodes. The measurement results show that SS 316 with welding electrode grade ER 316 all parts of the object of inspection fall within the standard range used except for material 4, which is the connection between the flange and elbow is declared rejected because the values ​​for Cr, Ni, and Mo do not fall within the standard range. Meanwhile, SS 2205 with a welding electrode grade of ER 2594 shows that all parts of the object being measured meet the requirements of the standard range used.
Analisa Rancangan Pipe Support pada Aliran Fuel Gas Menggunakan Auto Pipe Irsan Saputra; Hendra Saputra; Mega Gemala
Jurnal Teknologi dan Riset Terapan (JATRA) Vol 2 No 2 (2020): Jurnal Teknologi dan Riset Terapan (JATRA) - December 2020
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jatra.v2i2.2861

Abstract

Perancangan perpipaan yang baik dan benar sangat dibutuhkan untuk menjamin kelangsungan dari proses serta lama pemakaian pipa. Dalam proses perancangan banyak aspek yang perlu diperhatikan sehingga memperoleh desain yang baik dan efisien, hal yang diperhatikan salah satunya peningkatan tekanan dan suhu yang menyebabkan terjadinya tegangan, Untuk mengatasi besarnya tegangan maka diperlukan Analisa. Pada tugas akhir ini akan dilakukan Analisa tegangan menggunakan aplikasi Auto Pipe dengan pengerjaan desain mengunakan standar ASME B31.3 Proses Piping, terdapat 3 tegangan yang dianalisa menggunakan aplikasi yaitu tegangan sustain, expansion, dan hoop. Pada rancangan yang dibuat terdapat 10 point daerah dimana tiap-tiap point memilki tegangan yang terjadi berbeda, sehingga perlu diketahui daerah yang kritis berdasarkan besaran tegangan yang terjadi. Hasil yang didapat dari analisa perhitungan ini adalah tercapainya desain yang aman pada saat beroperasi dikarenakan penggurangan tegangan akibat adanya pipa support
Hazard Identification And Risk Assesment (HIRA) Pada Proses Riksa Uji Mesin Crimping Semi-Otomatis Rahman Hakim; Dety Febrianti; Mutiarani Mutiarani; Annisa Fyona; Mega Gemala; Nur Fitria Pujo Leksonowati; Hanifah Widiastuti; Benny Haddli Irawan; Auliana Diah Wilujeng
Jurnal Teknologi dan Riset Terapan (JATRA) Vol 5 No 1 (2023): Jurnal Teknologi dan Riset Terapan (JATRA) - June 2023
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jatra.v5i1.4708

Abstract

Every phase of work activities in a workplace is inevitably associated with potential hazards and risks that can lead to both workplace accidents and occupational illnesses. To mitigate these hazards effectively, the identification and assessment of risks are imperative, providing a foundation for offering constructive recommendations to the respective companies. The process of hazard identification and risk assessment adheres to the risk management stages, aligned with the AS/NZS 4360:2004 standard on Risk Management, encompassing the determination of consequences (severity) and probability levels (likelihood) to ascertain the risk levels within each work process phase. Upon establishing these risk levels, comprehensive recommendations for control programs can be devised, aimed at averting workplace accidents and occupational diseases. Data acquisition is carried out through surveys/observations involving workers and document reviews. The observations were conducted within the production area, specifically focusing on the semi-automatic crimping machine inspection process at PT. SWS in December 2022. The research findings reveal that within the crimping machine inspection process, the risk percentages are distributed as follows: 0% at the extreme risk level, 65% at the high risk level, 35% at the moderate risk level, and 0% at the low risk level. Effective control and supervision measures are essential to prevent the occurrence of workplace accidents and occupational illnesses. These measures offer significant benefits, encompassing enhanced work productivity, improved work morale, and a fortified corporate reputation. The researcher proposes a range of control measures, spanning substitution, engineering, administrative adjustments, and personal protective equipment provisioning.
Co-Authors Adhe Aryswan Afiev Ferdilla Sidiq Ahmadi Ahmadi Anes Hardi Cusinia Annisa Fyona Auliana Diah Wilujeng Benny Haddli Irawan Dety Febrianti Hanifah Widiastuti Hendra Saputra Hendra Saputra Herdianti Herdianti, Herdianti Irfannuddin Irfannuddin Irsan Saputra Lydia Erfina Mufti Fathonah Muvariz Mutiarani Mutiarani Mutiarani Mutiarani Naufal Abdurrahman Prasetyo Nur Fitria Pujo Leksonowati Nurul Ulfah Oktarizal, Hengky Oktaviani Kendri R.Kintoko Rochadi Rahman Hakim Roni Saputra Tian Havwini Yuanita Windusari