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All Journal JET (Journal of Electrical Technology) Jurnal Sistem Teknik Industri Blend Sains Jurnal Teknik Factory Jurnal Industri, Manajemen dan Rekayasa Sistem Industri Buletin Utama Teknik Jurnal Teknik Indonesia (JU-TI)
Suliawati, Suliawati
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Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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Journal : Jurnal Teknik Indonesia (JU-TI)

 1 
Improvement Of Ergonomic Cassava Removal Device Design With REBA (Rapid Entire Body Assessment) Approach In Tanjung Harap Village, Serbajadi District Satrio, Dimas; Suliawati, Suliawati; Hernawati, Tri
Jurnal Teknik Indonesia Vol. 2 No. 02 (2023): Jurnal Teknik Indonesia (JU-TI), Desember 2023
Publisher : SEAN Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58471/ju-ti.v2i02.552

Abstract

The goal to be achieved in this study is to improve the cassava fruit plucking device that applies to the harvesting process so that it becomes an ergonomic auxiliary tool by considering the safety, comfort, effectiveness of workers in doing work. This type of research is included in correlational type descriptive research with the method used in the form of the REBA (Rapid Entire Body Assessment) method is one method to analyze and provide observations of work postures quickly and easily. From the results of the study, the REBA score was obtained from the sum of the total grub A score and the total Grub B score and activity value, the effectiveness value obtained was 1 and the REBA score obtained was 10 where the number indicated high discomfort so that workers expended a lot of energy when doing work which resulted in many complaints of pain felt by workers thus it was necessary to redesign the tools used to Pulling out cassava fruit so that it can reduce the discomfort of workers and reduce complaints felt by workers.
Control of Auxiliary Materials in the Biodiesel Process Using the Min-Max Stock Method at PT. Permata Hijau Palm Oleo Belawan Zebua , Agung Persada; Suliawati, Suliawati; Arfah, Mahrani
Jurnal Teknik Indonesia Vol. 3 No. 01 (2024): Jurnal Teknik Indonesia (JU-TI), June 2024
Publisher : SEAN Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58471/ju-ti.v3i01.562

Abstract

Control of Auxiliary Materials in the Biodiesel Manufacturing Process Using the Min-Max Stock Method at PT. Permata Hijau Palm Oleo Belawan. The main reason why companies store raw materials in large quantities is as safety stock if there is a delay in delivery from suppliers so that the production process does not stop. This research was carried out on four auxiliary materials used for the Biodiesel manufacturing process, namely, Methanol, Catalist, HCl, and NaOH at PT. Permata Hijau Palm Oleo Belawan. From the research results, it was found that the final inventory of auxiliary materials during 2022 and 2023 was very large compared to inventory calculations using the Min-Max Stock method, namely for Methanol auxiliary materials, namely 390,182 Kg (2022) and 2,095,097 Kg (2023) compared to using the Min-Max Stock method of 316,852 Kg (2022) and 409,299 Kg (2023), with an investment cost of Rp. 10,898,701,800 Catalist, namely 1,130,654 (2022) and 1,776,481 Kg (2023) using the Min-Max Stock method of 76,325 Kg (2022) and 92,518 (2023), with an investment cost of Rp. 20,713,186,300, NaOH, namely 173,197 Kg (2022) and 152,905 Kg (2023) with the Min-Max Stock method of 36,466 Kg (2022) and 35,106 Kg (2023) with an investment cost of Rp. 2,107,404,600, HCl namely 130,767 Kg (2022) and 146,161 Kg (2023) using the Min-Max Stock method of 69,337 Kg (2022) and 63,821 Kg (2023) with an investment cost of Rp. 230,552,000. From the research results it can be concluded that controlling the inventory of auxiliary materials at PT. PHPO Belawan is still not optimal. The final inventory of auxiliary materials is still very large and the largest is Methanol auxiliary materials in 2023, Catalist in 2022 and 2023.
Co-Authors AK, Wirda Novarika Arfah, Mahrani Casya, Hadisty Andara Damanik, Eka Syahrinaldi FADILA, NUR Fahri, Fadilal Gumay, Vita Sari Gusrawaldi, Muhammad Harahap, Bonar Hasibuan, Abdurrozzaq Hasibuan, Rahmadi Setiawan Hernawati, Tri Ilmi, Mahmuda Khoir, Rizal Abdul Marthin, Andika Nasution, Amsyarul Ramadhan Novarika, Wirda Pane, Ridho Smith Parinduri, Luthfi Ravi, Muhammad Satrio, Dimas Sibuea, Siti Rahmah Sirait, Anggun Nadhea Ananda Br Siregar, Tanizar Mulia Sultan, Kelana Syahdani, Rama Zebua , Agung Persada