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Irfan Aditya Dharma
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Faculty of Industrial Technology KH. Mas Mansyur Building Universitas Islam Indonesia Jl. Kaliurang KM. 14,5 Sleman Yogyakarta 55584
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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 300 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.
Pengukuran Risiko Postur Kerja di Menggunakan Metode NBM, REBA, dan QEC (Studi Kasus PT ABC) Worldailmi, Elanjati; Ulinnuha, Tamara Hanum; Hertanta, Bayu
Teknoin Vol. 31 No. 1 (2026)
Publisher : Faculty of Industrial Technology Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/teknoin.vol31.iss1.art6

Abstract

Penelitian ini bertujuan untuk menganalisis risiko ergonomi pada pekerja bagian ironing di PT ABC serta memberikan rekomendasi perbaikan untuk mengurangi potensi gangguan muskuloskeletal dan meningkatkan kualitas produksi. Metode yang digunakan meliputi Nordic Body Map (NBM), Rapid Entire Body Assessment (REBA), dan Quick Exposure Check (QEC). Subjek penelitian terdiri dari pekerja bagian ironing dengan total 6 orang, di mana 4 pekerja dianalisis menggunakan NBM dan QEC, serta 1 pekerja dianalisis menggunakan REBA sebagai representasi postur kerja. Hasil penelitian menunjukkan bahwa pekerja berada pada tingkat risiko ergonomi sedang hingga tinggi. NBM mengindikasikan adanya keluhan dominan pada lengan bawah, pergelangan tangan, dan bahu, sedangkan REBA menunjukkan postur kerja yang belum ergonomis dan memerlukan perbaikan. QEC menunjukkan tingkat paparan risiko tinggi yang membutuhkan tindakan segera. Kondisi ini dipengaruhi oleh postur kerja statis, aktivitas repetitif, durasi kerja panjang, serta ketidaksesuaian target produksi. Oleh karena itu, diperlukan perbaikan desain kerja, pengaturan waktu kerja, dan peningkatan lingkungan kerja untuk meningkatkan produktivitas dan kualitas hasil produksi.
Pengembangan Alat Monitoring Infus Berbasis Arduino: Fondasi Awal untuk Integrasi Industri Material Plastik Biomedis Masa Depan Engelbertus, Yustinus; Buyung, Irawadi; Listyalina, Latifah
Teknoin Vol. 31 No. 1 (2026)
Publisher : Faculty of Industrial Technology Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/teknoin.vol31.iss1.art1

Abstract

Penelitian ini bertujuan merancang dan mengembangkan perangkat monitoring volume infus berbasis mikrokontroler Arduino dengan kemampuan deteksi aliran cairan secara real-time. Perangkat ini ditujukan untuk meningkatkan efisiensi pemantauan infus oleh tenaga medis serta meminimalkan risiko keterlambatan pergantian cairan yang berpotensi memengaruhi kondisi pasien. Sistem yang dirancang menggunakan sensor flow rate untuk mendeteksi aliran cairan infus dan menampilkan data volume cairan pada layar LCD, serta dilengkapi dengan mekanisme peringatan ketika aliran terhenti atau volume cairan berada pada ambang minimum. Dalam tahap implementasi awal, konstruksi fisik dan casing masih memanfaatkan material konvensional. Namun, sebagai bentuk inovasi berkelanjutan, penelitian ini merekomendasikan pengembangan lanjutan melalui integrasi material plastik biomedis, seperti plastik transparan biokompatibel, plastik tahan suhu tinggi, maupun plastik biodegradable. Pemanfaatan material tersebut berpotensi meningkatkan aspek keamanan, kenyamanan pasien, serta mendukung prinsip keberlanjutan dalam industri alat kesehatan. Hasil pengujian menunjukkan bahwa sistem memiliki tingkat akurasi dan respons yang baik, yaitu tingkat kesalahan relatif kecil, yaitu sebesar 3,07%, yang masih berada dalam batas toleransi untuk aplikasi monitoring non-kritis sehingga prototipe ini berpotensi menjadi dasar pengembangan perangkat monitoring infus cerdas yang tidak hanya efisien, tetapi juga adaptif terhadap penerapan teknologi material plastik medis modern
Integrasi FMEA, RCA+, dan TRIZ untuk Menurunkan Tingkat Cacat pada Produksi Tempe UMKM Fadhillah, Hanifah Nur; Pratikno, Faishal Arham; Wantira, Amanda Dwi
Teknoin Vol. 31 No. 1 (2026)
Publisher : Faculty of Industrial Technology Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/teknoin.vol31.iss1.art2

Abstract

Usaha Mikro Kecil dan Menengah (UMKM) produsen tempe, menghadapi masalah produksi yaitu tingkat cacat produk hingga 50% dari produksi harian. Penelitian ini bertujuan mengidentifikasi cacat kritis, menganalisis penyebab utama, dan merancang solusi inovatif untuk menurunkan tingkat kecacatan. Metode yang digunakan meliputi integrasi Failure Mode and Effect Analysis (FMEA), Root Conflict Analysis (RCA+), dan Teoriya Resheniya Izobretatelskikh Zadach (TRIZ). FMEA menunjukkan bahwa bau tidak sedap merupakan cacat utama dengan nilai RPN tertinggi (75). RCA+ mengidentifikasi beberapa akar masalah seperti kemasan tanpa ventilasi, takaran ragi yang tidak konsisten, pencucian kedelai yang tidak optimal, dan perendaman yang terlalu lama. Berdasarkan hasil tersebut, TRIZ digunakan untuk menghasilkan solusi teknis seperti ventilasi kemasan, penggunaan ragi sekali pakai, pencucian bersuhu stabil, dan sistem perendaman otomatis. Hasil penelitian menunjukkan bahwa kombinasi ketiga metode ini efektif dalam menurunkan angka cacat dan dapat diterapkan untuk meningkatkan mutu di industri pangan.
Application of Exponential Smoothing Models for Coal Demand Forecasting in Cement Plants Indra Maulana, Rizky; Irwan Iftadi
Teknoin Vol. 31 No. 1 (2026)
Publisher : Faculty of Industrial Technology Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/teknoin.vol31.iss1.art3

Abstract

Energy forecasting plays an important role in maintaining operational stability and inventory efficiency in the cement manufacturing industry, where coal remains the primary source of thermal energy. This study aims to develop an accurate forecasting model to predict coal demand in the procurement and warehouse division of a cement manufacturing plant in West Java, Indonesia. A quantitative approach was applied using three time-series forecasting methods, namely Moving Average (MA), Single Exponential Smoothing (SES), and Holt’s Double Exponential Smoothing (DES). Monthly coal consumption data from 2022 to 2024 were analyzed and divided into training and testing datasets to evaluate out-of-sample forecasting performance. Several parameter combinations were tested to obtain the optimal forecasting configuration for each model. Forecasting accuracy was assessed using Mean Absolute Deviation (MAD), Mean Squared Error (MSE), and Mean Absolute Percentage Error (MAPE). The results show that Holt’s DES achieved the best forecasting performance, with a MAPE of 6.21%, outperforming SES and MA, which had MAPE values of 9.84% and 11.47%, respectively. The selected model also reduced the average deviation between forecasted and actual coal demand to below 500 tons per month, thereby minimizing the risk of overstocking and stockouts. These findings demonstrate that quantitative forecasting can support more effective procurement planning, improve inventory control, and enhance energy management practices in cement manufacturing operations. Nevertheless, this study is limited to a three-year observation period and focuses on a single industrial case, which may limit the generalizability of the results.
Job Safety Analysis for Hazard Identification in Cement Industry Warehouse Operations Arilfa, Novita; Iftadi, Irwan
Teknoin Vol. 31 No. 1 (2026)
Publisher : Faculty of Industrial Technology Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/teknoin.vol31.iss1.art4

Abstract

Occupational safety in warehouse environments remains a major challenge due to complex material-handling activities that involve both mechanical and ergonomic risks. This study aimed to identify and analyze potential hazards in the Procurement and Warehouse Department of PT XYZ using the Job Safety Analysis (JSA) method and to propose effective control measures based on the Hierarchy of Control. The research employed a descriptive observational approach, including field observations, interviews, and risk evaluation using the Likelihood × Severity Scoring system. The analysis identified thirteen potential hazards across seven job activities, with 43% categorized as high risk, 43% as medium, and 14% as low. The most Significant risks were identified in forklift operation and manual material handling, contributing to mechanical and musculoskeletal hazards. The study concludes that the JSA method effectively provides a structured framework for risk identification and prioritization. The implementation of engineering, administrative, and ergonomic controls is essential to enhance safety performance and support sustainable workplace health, in alignment with ISO 45001:2018 and SDG 3 – Good Health and Well-Being.
Analisis Numerik Geometri Inlet dan Parameter Udara pada Pengering Rotary Drum Limbah Kepala Ikan Ma'a, Mustaza; Yanda Zaira, Jupri; Mustika, Ayu; Rifki, Muhammad; Fahreza, Rizky; Olvaries, Rahmat
Teknoin Vol. 31 No. 1 (2026)
Publisher : Faculty of Industrial Technology Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/teknoin.vol31.iss1.art5

Abstract

Peningkatan volume limbah kepala ikan di Indonesia yang mencapai 30-40% dari total berat tangkapan memerlukan penanganan yang efektif untuk mencegah pembusukan akibat kadar air yang tinggi. Namun, efisiensi mesin pengering rotary drum sering terkendala oleh distribusi panas yang tidak merata dan aliran udara yang kurang optimal. Penelitian ini mengevaluasi kinerja aerodinamika dan termal mesin menggunakan Computational Fluid Dynamics (CFD) dengan membandingkan variasi temperatur (80°C, 100°C, 120°C), diameter pipa (100 mm, 125 mm, 150 mm), dan kecepatan aliran (2 m/s, 5 m/s, 8 m/s). Hasil simulasi menunjukkan bahwa diameter pipa 125 mm menghasilkan aliran yang paling stabil, temperatur 120°C menghasilkan panas yang paling homogen, serta kecepatan 5 m/s menjadi parameter operasional yang optimal untuk menjaga residence time ideal. Secara keseluruhan, kombinasi parameter tersebut merupakan konfigurasi desain terbaik untuk meningkatkan efisiensi energi dan kualitas pengeringan dalam industri pengolahan limbah perikanan.

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