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Irfan Aditya Dharma
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INDONESIA
Jurnal Teknoin
Published by Universitas Islam Indonesia
ISSN : 08538697     EISSN : 26556529     DOI : -
Core Subject : Engineering,
Engineering Mechanical Engineering
Teknoin memiliki komitmen untuk mempublikasikan topik-topik dalam bidang teknologi industri. Selain itu, dengan fitur jurnal open-access, diharapkan Teknoin dapat menjadi rujukan akademis tanpa batas baik untuk penelitian, pengajaran, maupun tujuan akademis lainnya.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 294 Documents
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Improving The User Interface of a Dealer Management System (DMS) via Design Thinking: A Case Study at Wuling Motors Indonesia Putra, Perdana Suteja; Brilianti, Grahita Prisca; Istiqomah, Silvi; Aqidawati, Era Febriana; Afraah, Sayyidah Maulidatul
Teknoin Vol. 30 No. 2 (2025)
Publisher : Faculty of Industrial Technology Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/teknoin.vol30.iss2.art3

Abstract

PT SGMW Motor Indonesia (Wuling Motors) has used a Dealer Management System (DMS) for over five years; however, users report a cumbersome interface, non‑functional menus, and suboptimal task efficiency. This study applies a Design Thinking approach (empathize, define, ideate, prototype, test) to redesign the DMS user interface and improve user experience. We conducted interviews in the empathize stage (n=20) to build personas and journey maps, and performed formative usability testing with three user roles—dealer administrators, sales staff, and IT support—(n=9; 3 per role). Usability was evaluated using the System Usability Scale (SUS) and cognitive walkthroughs. Results show a quantitative improvement in usability (SUS: existing = XX.X, prototype = YY.Y; Δ = YY.Y − XX.X), alongside reduced steps for key tasks and clearer navigation. The study contributes a sector‑specific DMS redesign for the Indonesian automotive context and a transparent DT‑based process that other enterprise systems can replicate.
Analisis Komparatif Perancangan Shell and Tube Aftercooler 400 HP: Pendekatan Manual vs. Simulasi HTRI Putra, Iriansyah; Seftandi, Andri Adi; Muhammad Ihsan; Festika, Ferri
Teknoin Vol. 30 No. 2 (2025)
Publisher : Faculty of Industrial Technology Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/teknoin.vol30.iss2.art4

Abstract

Shell-and-tube heat exchangers (STHEs) are critical components in industrial compression systems, often serving as aftercoolers for compressed air. This study aims to design a 400 HP STHE aftercooler using a hybrid approach: manual calculation based on Kern’s method and simulation using Heat Transfer Research Inc. (HTRI) software. Compared parameters include heat transfer rate, Log Mean Temperature Difference (LMTD), surface area, overall heat transfer coefficient (U), and shell-side and tube-side pressure drop. Results show high consistency in thermal parameters (Q = 144.55 kW vs. 143.55 kW; LMTD = 17.71 °C vs. 17.4 °C; A = 11.44 m² vs. 11.437 m²), yet reveal an extreme disparity in shell-side pressure drop: 3.82 psi (manual) vs. 98.31 psi (HTRI). This discrepancy highlights the limitations of simplified assumptions in manual calculations in modeling real-flow complexities such as baffle effects, leakage paths, and non-uniform flow distribution—accurately captured by HTRI. This study affirms that integrating manual calculation as the preliminary design and HTRI verification as the optimization tool is the best practice for producing heat exchanger designs that are both thermally and operationally efficient.
The implementation of Work Improvement in Small Enterprises (WISE) to Enhance The Quality and Hygiene of The Work Environment Pamungkas, Dicky; Iftadi, Irwan
Teknoin Vol. 30 No. 2 (2025)
Publisher : Faculty of Industrial Technology Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/teknoin.vol30.iss2.art5

Abstract

A healthy and safe working environment is essential for enhancing productivity and ensuring worker well-being, especially in small enterprises such as UMKM (Micro, Small, and Medium Enterprises). Despite their importance, many UMKMs struggle to meet hygiene and safety standards due to limited resources and lack of awareness. This study evaluates the workplace conditions at a tofu-processing UMKM and identifies key barriers to improving environmental quality and hygiene. The research utilised the Work Improvement in Small Enterprises (WISE) approach, which involves step-by-step activities including workplace observation, hazard identification, issue prioritization, implementation of improvements, and follow-up evaluation. The most critical problems identified were the absence of SOPs, lack of safety signs, and inadequate sanitation facilities. Solutions were developed using the WISE method, including SOP drafting, safety signage installation, and sanitation enhancement. The implementation of WISE has proven effective in improving workplace hygiene and safety, offering a practical model for similar small enterprises.
Penerapan Metode NBM, REBA, dan QEC untuk menurunkan Risiko Kerja di PT XYZ Worldailmi, Elanjati; Ulinuha, Tamara Hanum; Hertanta, Bayu
Teknoin Vol. 30 No. 2 (2025)
Publisher : Faculty of Industrial Technology Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/teknoin.vol30.iss2.art6

Abstract

The high number of defects in the ironing process at PT XYZ indicates potential ergonomic problems that impact product quality and worker health. This study aims to assess ergonomic risk levels and identify the main causes of musculoskeletal complaints among ironing operators. The Nordic Body Map (NBM) method was used to measure musculoskeletal complaints, the Rapid Entire Body Assessment (REBA) to assess work posture in detail, and the Quick Exposure Check (QEC) to evaluate ergonomic risk factors comprehensively. The study was conducted on four ironing operators, with primary posture measurements taken from the operator with the most representative posture pattern. The NBM results showed that the majority of workers were in the moderate risk category with dominant complaints in the forearms and wrists. The REBA analysis produced a score of 7, indicating action level 2 and requiring improvement in work posture. Meanwhile, the QEC results showed a very high risk (exposure score ≥ 70%) in all operators, especially in the wrist and shoulder segments. Based on these findings, root causes were identified and grouped into machine, method, human, and environment aspects using a fishbone diagram. Recommendations for improvement include anthropometrically based workbench redesign, adjustments to production targets, improved work methods, and environmental controls. This research provides a basis for ergonomic improvements to reduce the risk of injury and improve the quality of the ironing process at PT XYZ.

Page 30 of 30 | Total Record : 294

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