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setiawan, Dibyo
Politeknik Negeri Bandung
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Optimasi Performa Mesin Diesel Matsumoto MDX-178F melalui Modifikasi Intake dan Exhaust Dibyo Setiawan; Rizal Jatnika; Derry Murtadho Muthohhary; Ilham Azmy; Toni Okviyanto; Cahyo Wibowo
Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi Vol 12, No 1 (2026): April
Publisher : universitas teuku umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jmkn.v12i1.14945

Abstract

 The current condition of the Matsumoto MDX-178F diesel engine for the Energy Efficient Car Competition (KMHE) is not at its maximum performance, the efficiency and torque it produces have decreased from the initial engine specifications. The purpose of this activity is to recondition and modify the air intake and exhaust system on the Matsumoto MDX-178F diesel engine to optimize engine performance, increase combustion efficiency, and reduce exhaust emissions. The reconditioning method begins with an evaluation of the air intake and exhaust system which includes components such as air ducts, filters, exhaust ducts, head parts, pistons, cylinders, injectors and other parts. Repairs or replacements are carried out on components that are damaged or require readjustment. The modification process is carried out by porting and polishing the intake and exhaust lines. The increase in air flow is measured using a flow bench, the increase in power is measured using a dynotest, the reduction in exhaust emissions is measured using an exhaust gas analyzer. This study provides a scientific contribution through the integrated application of reconditioning and geometric optimization of intake–exhaust channels based on porting and polishing in a single-cylinder diesel engine within the context of energy-efficient vehicles, an area that remains limited in previous research. The results of this reconditioning and modification can show a significant increase in engine performance, including increased power and combustion efficiency. so that the engine becomes more environmentally friendly. The conclusion shows that the reconditioning and modification of the intake and exhaust systems of the Matsumoto MDX-170F diesel engine not only improves engine performance, but also improves fuel economy and reduces environmental impact.
Autonomous Smart Manufacturing Systems in the Era of Industry 5.0: A Systematic Review of AI-Driven Decision Intelligence and Industrial Optimization Ade Suhara; Dibyo Setiawan; Fathan Dewadi; Fisika Putra; Gunawan Musyaffa; Surotun Nabawiyah
JADI (Jurnal Teknik Industri) Vol. 2 No. 1 (2026): Smart Manufacturing
Publisher : CV. Indie Press Edutaste

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.66865/xv9yr868

Abstract

The emergence of Industry 5.0 has accelerated the transformation of manufacturing industries toward autonomous, intelligent, and human-centric production systems. Smart manufacturing technologies increasingly integrate Artificial Intelligence (AI), Internet of Things (IoT), Digital Twin, and Cyber-Physical Systems (CPS) to support predictive decision-making and industrial optimization. This study aims to analyze the development of autonomous smart manufacturing systems through a systematic literature review approach. The review process followed the PRISMA methodology using publications indexed in Scopus, Web of Science, and Google Scholar from 2016–2026. The results indicate that AI-driven manufacturing systems significantly improve predictive maintenance, operational efficiency, production flexibility, and industrial sustainability. However, challenges related to cybersecurity, infrastructure readiness, implementation costs, and ethical AI governance remain significant barriers. This study concludes that autonomous smart manufacturing systems possess strong potential to support intelligent and sustainable industrial transformation in the Industry 5.0 era.
Analisis Ketebalan dan Kualitas Pelapisan Struktur Baja di Area Tambang Toni Okviyanto; Dibyo Setiawan; Hanni Maksum Ardi; Agus Subeno; Angga Setiawan; Cahyo Wibowo
Jurnal Rekayasa Energi dan Mekanika Vol 6, No 1 (2026): JREM
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/JREM.v6i1.39

Abstract

Integritas struktur baja di lingkungan pertambangan tropis mempengaruhi kualitas sistem pelapisan pelindung proses konstruksi membuat  sangat rentan terhadap korosi. Pelapisan permukaan baja merupakan metode mitigasi yang  efektif digunakan. Penelitian ini bertujuan untuk mengevaluasi ketebalan dan kualitas pelapisan struktur baja piperack 3115 di area tambang terbuka, melalui pendekatan studi kasus lapangan. Proses pelapisan dilakukan secara manual menggunakan kuas dan roller, dengan metode persiapan permukaan berdasarkan standar SSPC-SP2 dan SSPC-SP3. Masalah yang diangkat dalam studi ini adalah adanya deviasi ketebalan pelapisan yang signifikan dari spesifikasi teknis, yang berpotensi mempengaruhi performa dan daya tahan sistem pelindung. Hasil pengukuran ketebalan lapisan kering (DFT) menunjukkan nilai existing coat sebesar 674 µm, lapisan primer 926 µm (spesifikasi 150 µm), dan top coat 1038 µm (spesifikasi 75 µm). Meskipun pelapisan dilakukan dalam kondisi lingkungan yang relatif stabil dan sesuai standar (suhu 29–33 °C, kelembaban 70–85%), kelebihan ketebalan berisiko menimbulkan retak atau delaminasi akibat tegangan internal. Penelitian ini menunjukkan perlunya peningkatan pengawasan mutu dan pelatihan aplikator di lapangan agar hasil pelapisan lebih seragam, aman, dan sesuai spesifikasi kondisi ekstrem di lingkungan pertambangan. Rekomendasi diberikan untuk peningkatan pemantauan proses dan pelatihan tenaga kerja untuk meminimalkan deviasi selama aplikasi pelapisan secara manual di proyek-proyek industri serupa.
Analysis of Lead Time Reduction in Pre-Delivery Installation Process of Excavator Units at PT. XYZ Assembly Plant Dibyo Setiawan; Tubagus Syah Fatahillah Gelagah Wangi Bintaran; Apri Setiawan; Hanni Maksum Ardi; Herbert Hasudungan Siahaan; Cahyo Wibowo
Jurnal Konversi Energi dan Manufaktur Vol. 11 No. 1 (2026)
Publisher : Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/JKEM.11.1.5

Abstract

The Pre-Delivery Installation (PDI) Department of PT. XYZ is tasked with carrying out the installation process of imported heavy equipment attachment units, including one of the leading excavator units. Obstacles that arise can affect installation productivity. The gap between the actual installation results of 78 units and the company's target of 156 units requires a solution or resolution to improve the process that can be implemented. Therefore, it is necessary to investigate the wait time associated with decreased productivity, which is the longest component of the installation process. This work has a purpose to analyze lead time of the excavator attachment unit installation process. The method is applied with a time study approach referring to data sheets and observations, then processing lead time data using pie charts, Pareto diagrams, and fishbone diagrams. Furthermore, we review the planning calendar, realization, and improvement engineering. Reduction is carried out by providing additional work personnel and procuring sanding machine tools to reduce the installation and critical time of the planning calendar. The realization condition for 562 minutes with the implementation of improvement engineering is reduced to 318 minutes. Thus, it can speed up implementation time of the excavator attachment in unit installation process to 224 minutes or 44%.
Effectiveness of Epoxy Coating on Metal Surfaces of NEW773CAT Heavy Equipment Units Agus Subeno; Angga Setiawan; Toni Okviyanto; Herlin Sumarna; Dibyo Setiawan; Fauzi Widyawati
Jurnal Konversi Energi dan Manufaktur Vol. 11 No. 1 (2026)
Publisher : Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/JKEM.11.1.6

Abstract

This study investigates the effectiveness of the epoxy coating system on NEW773CAT heavy equipment unit operating in a mining environment. The research primarily focuses on the influence of surface preparation methods, dry film thickness (DFT), and coating type on corrosion resistance and adhesion strength. Field case studies, thickness measurements, and visual inspections were employed to assess the performance of coating system. The results reveal that average coating thickness of 396 μm significantly exceeds the minimum ISO 12944 category C5-I standard, which specifies a DFT of 320-400 μm for high corrosivity environments. The surface preparation process using high-pressure cleaning and power tool cleaning (ST 3.0) was found to produce an ideal substrate for epoxy coating application. The use of high-built epoxy mastic as the primer and Aliphatic Polyurethane as the top coat demonstrated excellent corrosion protection and optimal interlayer adhesion. The spray application technique resulted in a uniform coating with no visible defects. This study emphasizes the importance of combining effective surface preparation and precise coating specifications to ensure long-term protection of metal surfaces in harsh environments. The findings suggest that epoxy coating systems, when correctly applied and prepared, can provide robust protection against corrosion, extending the service life of heavy equipment exposed to aggressive conditions like those found in mining operations.
An Experimental Study on the Effect of Reflective Surface Variations on the Power Performance and Efficiency of Bifacial Solar Panel Lastri Andini Gunawan; Jakariya; Ahmad Deni Mulyadi; Doane Puri Mustika; Dibyo Setiawan; Agus Subeno
Jurnal Konversi Energi dan Manufaktur Vol. 11 No. 2 (2026)
Publisher : Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/JKEM.11.2.4

Abstract

The increasing demand for clean electrical energy in Indonesia highlights the need to optimize solar power generation technologies. Bifacial photovoltaic (PV) panels offer higher energy yield by utilizing solar radiation from both front and rear sides; however, their performance is strongly influenced by reflective properties of the surface beneath the panel. This study aims to analyze the effect of reflective surface variations with different albedo values on the power output and efficiency of bifacial solar panels under tropical rainy season conditions. An experimental method was employed using three identical bifacial PV modules (545 Wp) installed above asphalt, paving block, and white-painted surfaces. The modules were installed with a tilt angle of 8°, an azimuth angle of 0° (facing north), and a height of 60 cm above the surface. Measurements of solar irradiance, voltage, and current were conducted at irradiance levels ranging from 203 to 1001 W/m². Data were collected three days with same conditions and parameter in November 2024 during the period time from 09:00 to 15:00. The results show that to enhance rear-side irradiance, as indicated by the increase in output power observed in this study, leading to increased output power and efficiency. The white-painted surface produced the highest performance, achieving an average power increase of approximately 9.6% and a maximum efficiency of 16.3% compared to asphalt and paving block surfaces. These findings indicate that high-albedo surfaces are an effective solution for improving bifacial solar panel performance, particularly in wet tropical climates such as Bandung, Indonesia.
Protective Coating Performance on Industrial Components During Shutdown Maintenance Toni Okviyanto; Agus Subeno; Dibyo Setiawan; Fauzi Widiawati; Edward Simanjuntak; Otong Jaelani
Jurnal Konversi Energi dan Manufaktur Vol. 11 No. 2 (2026)
Publisher : Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/JKEM.11.2.6

Abstract

Corrosion protection is a critical aspect of industrial maintenance because coating quality directly influences equipment durability, operational reliability, and long-term maintenance efficiency. However, coating assessments in industrial practice often focus on compliance with thickness specifications without comprehensively evaluating the relationship between surface preparation quality, environmental conditions, coating thickness, and final coating performance under actual shutdown maintenance conditions. This study aimed to evaluate the effectiveness of the coating process during total plant shutdown (TPS) painting work on four industrial components: the sole plate sag mill, cover motor ball mill, base frame motor bubble crusher, and OHC girder. A field-based coating performance assessment was conducted using final painting reports, visual inspection records, environmental condition monitoring, surface preparation evaluation, and dry film thickness (DFT) measurements. Surface preparation was carried out using ST 3/SSPC-SP 3 mechanical cleaning, while coating performance was evaluated against the specified DFT requirements. The results showed that all inspected components satisfied the acceptance criteria, with primer DFT values exceeding 150 µm and final DFT values exceeding the minimum system requirement of 225 µm. Final coating thickness increased by 263–347 µm compared to the existing condition, indicating the formation of a protective coating layer. Nevertheless, noticeable thickness variations among measurement locations suggest opportunities for improving application consistency and process control. These findings demonstrate that the applied coating system met the specified performance requirements and provided effective corrosion protection under field conditions, while further optimization of coating application practices is required to achieve more uniform and efficient coating performance.
Rancang Bangun dan Pengujian Performa Mesin Pembubur Sampah Organik Menjadi Pakan Maggot Kapasitas 24 kg/jam Budi Triyono; Raden Roro Yngwistian Jannavis Astie; Zainuddin; Dibyo Setiawan; Apri Setiawan
Infotekmesin Vol 16 No 2 (2025): Infotekmesin: Juli 2025
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v16i2.2758

Abstract

Organic waste management, particularly from canteens or kitchens, which often consists of leftover meat, fish, and vegetables, remains a significant challenge. If processed properly, this waste has the potential to be used as maggot feed. To process this organic waste, it is necessary to develop an organic waste slurry machine designed to process organic waste from the Pujasera or campus canteen into maggot feed. The development process for this machine includes six stages: Planning, Conceptual design, Detailed design, Technical documentation, Manufacturing and assembly, and Testing. From these stages, a compact organic waste slurry machine is produced with dimensions of 815 x 425 x 840 mm, driven by a 1-phase electric motor with a power of 1.5 HP (1,100 Watts) and a rotation speed of 1,050 RPM. The test results show that this machine is effective in shredding organic waste with a capacity of 24 kg/hour, a maximum power of 1,037 Watts, and an energy consumption of 0.860 kWh. These results provide an innovative and economical solution, promoting the use of organic waste as a valuable resource.
Modifikasi Dudukan Shaft Alignment Test pada Pompa Sentrifugal Tunggal EBARA 80X65FS2G untuk Praktikum Teknik Monitoring Kondisi Mesin Fadlan Rival Muzaki; Ferli Nur Rahman; Mokhamad Munir Fahmi; Dibyo Setiawan
Jurnal Rekayasa Energi dan Mekanika Vol 5, No 2 (2025): JREM
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/JREM.v5i2.141

Abstract

Jurusan Teknik Mesin Politeknik Negeri Bandung memiliki peralatan praktikum shaft alignment Teknik Monitoring Kondisi Mesin. Permasalahan peralatan yaitu terbatasnya perpindahan posisi motor arah maju mundur ±0 mm dan kanan kiri ±3 mm. Sedangkan pada proses alignment membutuhkan kondisi perpindahan bebas maju mundur ±250 mm dan kanan kiri ±20 mm. Tujuan kegiatan ini yaitu modifikasi alat uji shaft alignment. Metodologi penyelesaian dilakukan inspeksi alat, penyusunan gambar modifikasi, pengadaan komponen, perakitan dan pengujian. Pengujian dilakukan alignment test untuk kelurusan, uji vibrasi untuk hasil respon unbalance, dan uji kebisingan untuk kondisi persyaratan penerimaan kebisingan mesin. Hasil dari modifikasi perpindahan bebas arah maju mundur telah tercapai ±250 mm dan kanan kiri ±20 mm. Hasil uji alignment diperoleh nilai simpangan sebesar 0,01 mm, nilai vibrasi tertinggi 10,7 mm/s dan nilai kebisingan terbesar 80,7 dB. Modifikasi sesuai rencana, perpindahan posisi dapat terapkan pada alat praktikum.
ANALISIS SIMULASI PERFORMA TURBIN PROPELLER PEMBANGKIT LISTRIK TENAGA MIKROHIDRO PROFIL AIRFOIL NACA 5310 DAN NACA 6412 Haryadi; Ahmad Zaki Rasyidi; Apri Setiawan; Budi Triyono; Dibyo Setiawan
JURNAL CRANKSHAFT Vol. 9 No. 1 (2026): Jurnal Crankshaft Vol. 9 No. 1 (2026)
Publisher : Badan Penerbit Universitas Muria Kudus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24176/cra.v9i1.16796

Abstract

Renewable energy, particularly hydropower, has become an important alternative in reducing dependence on fossil fuels. One widely used technology is the propeller turbine, which utilizes airfoil-based blade profiles to enhance the conversion of fluid energy into mechanical energy. This study aims to analyze the simulation performance of a propeller turbine with variations of NACA 5310 and NACA 6412 airfoil profiles under low-head conditions. The methodology employed is a numerical simulation based on Computational Fluid Dynamics (CFD). The observed variables include flow rate, pressure distribution, rotational speed, torque, hydraulic power, mechanical power, and turbine efficiency at head variations of 3 m and 5 m. The simulation results indicate that increasing the head from 3 m to 5 m significantly increases the flow rate, torque, and mechanical power; however, the turbine efficiency decreases drastically from approximately 69–71% at a 3 m head to about 30% at a 5 m head. The NACA 6412 profile demonstrates slightly better performance than the NACA 5310 profile, particularly in terms of efficiency and torque stability. Overall, both airfoil profiles are more suitable for low-head operating conditions and therefore have strong potential for application in micro-hydro power plants.
Co-Authors Abdul Kayi Abdurahman Ade Suhara Adri Maldi Subardjah Agung Pratama, Boby Agus Solehudin Agus Suben Agus Subeno Agus Subeno Agus Subeno Agus Subeno Ahmad Deni Mulyadi Ahmad Kholil Ahmad Zaki Rasyidi Ali Imron Ali Mahmudi Ali Mahmudi Amir Amir Amri Abdulah Angga Setiawan Angga setiawan Anggara, Aditya Anggrainy, Rani Apri Setiawan Apri Setiawan Apri Wiyono Ardi Nugraha ARDI NUGRAHA, ARDI Ardi Rajab, Dede Aris Suryadi Ariyano Bachtiar, Marsellinus Bantu Hotsan Simanullang Bintoro, Waluyo Musiono Budi Triyono Budi Triyono Budi Triyono Bunga Muthia Dien Cahyo Wibowo Cahyo Wibowo Cahyo Wibowo Cahyo Wibowo Dadang Kurnia Dadang Kurnia, Dadang Derry Murtadho Muthohhary Destri Muliastri Devi Eka Septiyani Arifin Doane Puri Mustika Edward Simanjuntak Enny Widawati Fadlan Rival Muzaki Fathan Dewadi Fathan Dewadi Fathan Mubina Dewadi Fauzi Widiawati Fauzi Widyawati Ferdiyansyah, Ferdiyansyah Ferli Nur Rahman Fisika Prasetyo Putra Fisika Prasetyo Putra Fisika Putra Gugun Nugraha Gunawan Musyaffa Hadi Sutanto Hafyyan, Iqbal Handy, Rayhan Aliva Vitra Hanni Maksum Ardi Harry Prayoga Setyawan Haryadi Haryadi - Haryadi, Haryadi Heri Widiantoro Herlin Sumarna Heryadi, Yadi Ida Ayu Putu Sri Widnyani Ilham Azmy Iqbal Hidayatullah Iryani, Lenny Istighfari, Nurrahman Jakariya Jakariya JAKARIYA - - Jakariya, Jakariya Jatira Jatira Jumari Karwansyah , Muhammad Fattan Khairullah Ijlal Khoirudin KURNIASETIAWATI, ANNISA Kusumohadi, Catur Setyawan Lastri Andini Gunawan Maksum Ardi, Hanni Marsellinus Bachtiar Melisa Mulyadi Mohamad Rizkiyanto Mohamad Wirandi Mokhamad Munir Fahmi Mokhamad Munir Fahmi Muhammad Akmal Muhammad Iqbal Harapan Muslim Muhammad Rian Kurniadi Muhammad Yusup Efendi Mulyadi, Yandi Munir Fahmi, Mokhamad Munir Fahmi, Mokhammad Muryanto Muryanto, Muryanto Nana Rahdiana Nor Fajri Okviyanto, Toni Otong Jaelani Otong Jaelani Panalili T, Ojakma Sihar Pasya, Azdane Peprial Indika Prasetyo Prasetyo Putra, Fisika Prasetyo Qisti, Yafta Raden Roro Yngwistian Jannavis Astie Rama Kurniawan Ramadhan, Kukuh Rani Anggrainy Revi Kusnadi Rifan Mustofa Rifqi Rahmadiansyah Rinaldi, Kardian Rizal Jatnika Rizki Aulia Nanda Rohadi Yusuf Rudy Rafly Safril Septiani, Herviona Setiawan, Apri Shieddieque, Apang Djafar Siahaan, Herbert Hasudungan Steven Gabriel Romero Sugianto Sugianto Sugianto Sukarman Sukarman Sukarman Sulistianto Sunaryo Suripto, Heri Surotun Nabawiyah Suseno, Bella Maharani Marcellia Sutrimo Syamsurizal, Nazmi Syarah Widia Islamiati R Thomas Aquinas J S Thoyib, Ibnu Annas Toni Okviyanto Toni Okviyanto Triyono , Budi Tubagus Syah Fatahillah Gelagah Wangi Bintaran Vauzia, Farrah Wicaksono, Yowando Putro Wijayanti, Linda Wuwung, Vicky Yowando Putro Wicaksono Yudistira Anugrahadi Wiraputra Yudrika, Moh Azmil Yuli Asmi Rahman Zainuddin Zainuddin Zainuddin, Zainiddin Zen, Elfiah Fadhilah Zeqy Zulhaqy