Article Per Year (5 Year)
p-Index From 2021 - 2026
2.127
P-Index
This Author published in this journals
All Journal Turbo : Jurnal Program Studi Teknik Mesin JURNAL PENDIDIKAN TAMBUSAI Gema Wiralodra ARMATUR : Artikel Teknik Mesin dan Manufaktur Jurnal Teknik Mesin, Industri, Elektro dan Informatika Jurnal Indonesia Sosial Teknologi Asian Journal of Social and Humanities JIPITI: Jurnal Pengabdian kepada Masyarakat
Muhammad Ridwan
Institut Teknologi PLN
Aerospace Engineering Automotive Engineering Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mechanical Engineering Social Sciences Other

Published : 13 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 13 Documents
Search

 1   2 
Penerapan Teknologi Scissor Lift untuk Keselamatan Kerja UMKM Servis Meja Biliar Arief Suardi Nur Chairat; Muhammad Ridwan; Hendri Hendri; Agus Wibawa; Desylia Fitria Nurhadi; Elizabeth Pintauli Hutapea; Sumayya Nurlaily
JIPITI: Jurnal Pengabdian kepada Masyarakat Vol. 3 No. 2 (2026): Mei 2026 - JIPITI: Jurnal Pengabdian kepada Masyarakat
Publisher : PT. Technology Laboratories Indonesia (TechnoLabs)

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Sektor UMKM jasa instalasi meja biliar menghadapi kendala serius terkait penanganan material secara manual, khususnya saat mengangkat slate (batu alam) seberat 150 kg. Aktivitas ini berisiko tinggi memicu Musculoskeletal Disorders pada pekerja dan sangat tidak efisien secara operasional. Oleh karena itu, kegiatan pengabdian ini bertujuan untuk mengimplementasikan teknologi tepat guna berupa Perangkat Angkat Gunting (Scissor Lift) Manual bagi mitra PT Kreasi Tiga Bola. Pelaksanaan pengabdian menggunakan pendekatan User-Centered Design, yang meliputi tahapan survei lapangan, perancangan desain, fabrikasi, uji coba fungsional, serta pelatihan Keselamatan dan Kesehatan Kerja (K3). Hasil pengabdian menunjukkan adanya perbaikan postur pekerja ke posisi berdiri netral yang berhasil menurunkan Lifting Index (LI) dari kategori sangat berbahaya menjadi aman (LI < 1). Selain itu, intervensi alat ini terbukti memangkas waktu pemosisian material dari 20 menit menjadi kurang dari 5 menit, serta mengoptimalkan kebutuhan tenaga kerja dari 4 menjadi 2 orang. Pelatihan yang diberikan juga berhasil meningkatkan pemahaman K3 teknisi sebesar 85%. Kesimpulannya, penerapan scissor lift manual ini sangat krusial karena efektif mengeliminasi risiko cedera fisik sekaligus memberikan nilai tambah berupa peningkatan efisiensi ekonomi dan produktivitas usaha mitra.  
Optimization Of Abnormal High Pressure Heater (HPH) Operating Pattern to Reduce Heatrate Of Adipala Power Plant 1 X 660 MW Muhammad Ridwan; Ahmad Analial Ghulam
Gema Wiralodra Vol. 14 No. 3 (2023): Gema Wiralodra
Publisher : Universitas Wiralodra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31943/gw.v14i3.596

Abstract

PLTU Adipala has three HPH (High Pressure Heaters) that have a very essential role in its operations. In The current condition, these three HPH are in a series. Which is, if the middle HPH has a problem during the cycle experiences and must be out-serviced, then the after HPH also must be out-serviced. This situation can increase the heat rate value because two HPH are out of service. Therefore, an alternative mode of HPH operation is needed to press the increase of heatrate and also prevent a decrease in generator efficiency at the same time. Simulations were carried out to obtain the most optimal operating pattern. This simulation was carried out using the Cycle Tempo software. The heat balance cycle is made in the Cycle Tempo software for each condition and filled in with the parameters. Then it runs to obtain the simulation results. The first condition is a normal HPH operating has a heat rate of 2071.4 kcal/kwh. The second condition is a condition where HPH 7 and 8 are out of service and have a heat rate of 2161 kcal/kwh. The third condition is only HPH 7 that is out of service and HPH 8 is streamed to HPH 6 which has a heat rate of 2118 kcal/kwh. The fourth condition is only HPH 7 which is out of service and HPH 8 is streamed to the condenser, which has a heat rate of 2150 kcal/kwh.
Pengaruh Material Elektroda dan Variasi Elektrolit terhadap Kinerja Elektrolisis Air pada Arus 10–50 A dalam Sistem Skala Kecil Nadira Ghina Azzahra; Muhammad Ridwan; Lia Nur Octavia; Rudina Okvasari
Jurnal Teknik Mesin, Industri, Elektro dan Informatika Vol. 5 No. 2 (2026): Jurnal Teknik Mesin, Industri, Elektro dan Informatika
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jtmei.v5i2.6062

Abstract

The growing demand for clean energy sources has driven the development of efficient hydrogen production technologies, one of which is water electrolysis. The performance of electrolysis systems is influenced by various parameters; however, understanding of the dominant factors in small-scale systems remains limited. This study aims to examine the effects of electrolyte type (NaOH, KOH, and NaCl), electrolyte concentration (1N–5N), electrode material (stainless steel 316 and aluminum), and electrode thickness on the performance of water electrolysis under electric current variations of 10–50 A. System performance was evaluated based on the volume of gas produced within a fixed operating time of 5 minutes. The results indicate that increasing electric current consistently enhances the volume of gas generated under all experimental conditions. Nevertheless, differences in system performance are more strongly influenced by electrolyte characteristics than by other parameters. The KOH electrolyte produced the highest gas volume across all current variations, with an increase of approximately ±10–15% compared to NaOH and ±20–30% compared to NaCl. Increasing electrolyte concentration improved performance up to a certain limit before mass transport limitations occurred. Overall, system performance is more strongly governed by electrolyte type and concentration than by electrode characteristics, indicating that electrolyte-based optimization is a more effective approach.
Co-Authors Adam Wirya Agus Wibawa Ahmad Analial Ghulam Anugerah Banjarnahor Arief Suardi N.C Chairat, Arief Suardi Nur Desylia Fitria Nurhadi Elizabeth Pintauli Hutapea Fahri Wibisono Hendri Hendri Hendri Hendri Lia Nur Octavia Muhammad Naufal Hardiansyah Nadira Ghina Azzahra Rachmat Adi Gumelar Roswati Nuhasanah Rudina Okvasari Sumayya Nurlaily Tita Atmajaya