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All Journal SITEKIN: Jurnal Sains, Teknologi dan Industri Journal of Applied Electrical Engineering
Muhammad Syafei Gozali
Politeknik Negeri Batam
Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Electrical & Electronics Engineering Industrial & Manufacturing Engineering Other

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Peningkatan Produksi Perekatan Lapisan Serat Fiber untuk Pembuatan Joran Pancing Menggunakan Mesin Monokork Rolling Rahmat Suryadi; Muhammad Syafei Gozali
Journal of Applied Electrical Engineering Vol 4 No 1 (2020): JAEE, June 2020
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jaee.v4i1.1859

Abstract

Pada industri manufaktur sebuah joran pancing berbahan fiber, proses awal yang dilakukan adalah perekatan lapisan serat fiber pada mandrel. Proses perekatan lapisan serat fiber ini masih dilakukan secara manual, yaitu operator yang meletakkan lapisan serat fiber ke mandrel dan merekatkannya menggunakan setrika (iron). Berdasarkan data produksi, hasil produksi tidak mencapai target output dan tingkat kecacatan produk yang terjadi sangat tinggi dikarenakan kesalahan yang dilakukan oleh operator. Hal ini memiliki dampak besar terhadap produktivitas yaitu kecacatan pada produk, rendahnya efektivitas proses produksi, dan waktu produksi yang kurang efisien. Peningkatan produktivitas dalam proses produksi dapat dilakukan dengan menggunakan mesin berbasis Programmable Logic Controller (PLC) yang dapat mengontrol aktuator seperti pneumatik dan motor servo secara otomatis serta menggunakan media kontrol Human-Machine Interface (HMI). Dari segi produktivitas, proses produksi yang dilakukan menggunakan mesin dapat mengurangi cycle time proses produksi sebesar 105 detik dan menurunkan jumlah cacat produk yang dihasilkan sebesar 15,76% sehingga meningkatkan output produksi sebesar 33%.
Analysis of Gas Turbine Performance based on Variation of Operating Load at PLTGU Panaran 1 Unit 1 PT.Mitra Energi Batam Jhon Hericson Purba; Muhammad Syafei Gozali; Ferri Fernando Sitohang; Arif Febriansyah Juwito; Adlian Jefiza
SITEKIN: Jurnal Sains, Teknologi dan Industri Vol 20, No 2 (2023): June 2023
Publisher : Fakultas Sains dan Teknologi Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/sitekin.v20i2.22786

Abstract

Gas and steam power generation units often experience changes in load according to the requested electricity needs. Changes in generator workload will also affect the efficiency of the generator. The different efficiency in each workload will have an effect on the amount of heat rate production produced when compared. By calculating the efficiency at each load, it will be useful to find out the workload with the best performance. From the results of the enthalpy calculation process based on the temperature of each gas turbine process, in this study the gas turbine performance is calculated, and then it compares the turbine performance with variations in operating load. The turbine performance that will be calculated includes compressor power, turbine power, net power, thermal efficiency, compressor efficiency, combustion chamber efficiency, turbine efficiency, heat input, and heat rate. The results of the calculation of the highest average thermal efficiency at 27 MW load were 35.18%; the average compressor efficiency experienced the highest increase at 25 MW load of 83.24%, followed by an average increase in combustion chamber efficiency and an average decrease in turbine efficiency at each increase in load, as well as experiencing the lowest decrease in heat rate at 27 MW load conditions of 2,842 kJ/kWh
Co-Authors Adlian Jefiza Arif Febriansyah Juwito Ferri Fernando Sitohang Jhon Hericson Purba Rahmat Suryadi