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All Journal Komunikasi Fisika Indonesia Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Jurnal Pengabdian UntukMu NegeRI Journal TEPAT: Teknologi Terapan untuk Pengabdian Masyarakat International Journal of Electrical, Energy and Power System Engineering (IJEEPSE) Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse) Journal of Applied Business and Technology PROCEEDING OF INTERNATIONAL CONFERENCE ON BUSINESS MANAGEMENT AND ACCOUNTING Luxury: Landscape of Business Administration Proksima Jurnal Pengabdian Kompetitif Prosiding SNTTM
Dodi Sofyan Arief
Universitas Riau
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Physics Public Health Social Sciences

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Aligment Feed Water Pump menggunakan Metode Laser PT. Riau Andalan Pulp and Paper Pelalawan, Riau Dinova, Alfito; Arief, Dodi Sofyan; Dalil, M; Junaidi, Abdul Khair
Proksima Vol 2 No 1 (2024): Jurnal ProKsima
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/proksima.v2i1.18

Abstract

Alignment is a process that aligns two shaft axes that are not straight to centric (between the driving shaft and the driving shaft axis). Correct alignment is needed so that checks are completed on the correct clutch, so that offset misalignment and angle misalignment do not occur again which results in damage to machine components which is detrimental to the industry. Misalignment is a condition where there is a deviation at the point between two connected axes (two axes are not located on the same axis). If misalignment occurs in the clutch, it will accelerate damage to the clutch, bearings and other components, and cause excessive vibration. The purpose of writing this report is to find out the basic theory of alignment and find out the alignment method using the laser method.
The Effect of Thread Depth on the Fatigue Strength of AISI 4140 Bolt Material as a Retainer and Fastener for a Screw Conveyor Alvi Hidayat; M Dalil; Dodi Sofyan Arief
Journal of Ocean, Mechanical and Aerospace -science and engineering- Vol 70 No 1 (2026): Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse)
Publisher : International Society of Ocean, Mechanical and Aerospace -scientists and engineers- (ISOMAse)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36842/jomase.v70i1.572

Abstract

The bolts used to retainer and fasten the shaft of the screw conveyor, which functions to transport wood chips to the cooking process in paper manufacturing, have experienced failure. The failure occurred in the form of a perpendicular fracture on the threaded section of the bolt. This damage significantly disrupts wood processing operations, making it important to investigate the causes. The causes of bolt fracture and its short service life were analyzed by studying the effect of thread pitch variations of 2.5 mm and 2 mm. The material tested was Valmet (VME), which is equivalent to AISI 4140. The fatigue test was conducted using a cantilever rotating bending method with the test specimens according to ASTM E466M standards. The results showed that to achieve infinite life, the stress level must be below 95 MPa. Thread pitch has a significant effect: VME bolts with a thread pitch of 2 mm showed a 17% longer endurance than bolts pitch of 2.5 mm.
Effectiveness of Telemetry Monitoring and Automatic Control Systems for Chicken Coops Based on IoT Ulfa Hasnita; Heru Pranoto; Harris Aminuddin; M. Dalil; Dodi Sofyan Arief
Journal of Ocean, Mechanical and Aerospace -science and engineering- Vol 70 No 1 (2026): Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse)
Publisher : International Society of Ocean, Mechanical and Aerospace -scientists and engineers- (ISOMAse)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36842/jomase.v70i1.596

Abstract

The management of environmental factors such as temperature, humidity, and ammonia levels are critical to the health and productivity of broiler chickens. Yet, many farmers still rely on manual monitoring, which is inefficient and prone to human error. Therefore, adopting the IoT-based telemetry systems can enhance monitoring accuracy and efficiency in poultry farming. This article evaluates the effectiveness of Internet of Things (IoT)-based telemetry systems in automating and monitoring poultry environments. By integrating various microcontrollers such as Arduino, NodeMCU ESP32 and Wemos D1 Mini with advanced sensors (DHT11/22, MQ-13 and ultrasonic sensors), these systems provide real-time data visualisation and automatic actuator control. Research methods include the waterfall development model, which involves prototyping models, utilising control logics like threshold, fuzzy tsukamoto, and Gaussian Naive Bayes. Results indicate the IoT implementation can maintain the coop's microclimate within ideal ranges (28°C–34°C for temperature), reduce energy consumption by up to 25%, and significantly lower mortality rates by maintaining ammonia levels below 20 ppm. The integration of telemetry via web dashboards, Blynk, and Telegram allows farmers to monitor and control their livestock remotely, enhancing operational efficiency and productivity.
Community Empowerment and Papaya Sauce Mixing Machine Grant in Tuah Madani Village, Tuah Madani District, Pekanbaru City Ari Andriyas Puji; Efi Afrizal; M. Dalil; Dodi Sofyan Arief; Romy .; Iwan Kurniawan; Anggraini Dwi Saputri; Edy Fitra; Doni Saputra; Wasilah .; M. Hanif Aprilyansah; Ahmad Romadani
JURNAL TEPAT : Teknologi Terapan untuk Pengabdian Masyarakat Vol 9 No 1 (2026): Environmental-based Awareness for Agile Community Strength
Publisher : Faculty of Engineering UNHAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25042/jurnal_tepat.v9i1.653

Abstract

This research aims to improve production efficiency and product quality in the papaya sauce processing SMEs in Tuah Madani Village, Pekanbaru City, through the provision of an efficient papaya sauce mixer machine grant. These SMEs face challenges in the production process, still relying on manual methods, which lead to inconsistencies in product quality and low production capacity. This community service activity consists of two stages: socialization and the implementation of the papaya sauce mixer machine. The results of the socialization show an increase in participants' understanding of the machine technology, as measured through pre-test questionnaires. The average response indicated that 78% of the community agreed that the SMEs faced challenges such as reliance on manual stirring, limited knowledge of machines, inconsistent product quality, and difficulty in increasing production capacity. The post-test results revealed that 92% of the community agreed that the SMEs are now using a more efficient papaya sauce mixer machine, reducing dependence on manual labor, speeding up the production process, increasing both capacity and product quality, and receiving training on how to operate and maintain the machine effectively. Through the application of this technology, it is expected that the SMEs in Tuah Madani can enhance their product competitiveness, increase production capacity, and strengthen economic resilience amidst increasingly intense market competition. This technology is also expected to boost the economic activities of SMEs in a more effective and efficient manner.
Residential AC Technician Competency Training and Certification (Level 3) in Pekanbaru Brian Agung Cahyo P.; Sunny Ineza Putri; Jheri Hermanto; Anita Susilawati; Dedy Masnur; Dodi Sofyan Arief; Putri Nawangsari; Annisa Wulan Sari; Mintarto .; Hanif Nugroho Aji; Rahmatsyah Maksum Ramsi
JURNAL TEPAT : Teknologi Terapan untuk Pengabdian Masyarakat Vol 9 No 1 (2026): Environmental-based Awareness for Agile Community Strength
Publisher : Faculty of Engineering UNHAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25042/jurnal_tepat.v9i1.687

Abstract

This Community Service Activity by the Mechanical Engineering Department of Riau University was a strategic move to address the urgent need for the formalization and quality improvement of Air Conditioner (AC) technicians. The program was based on the official appointment of Mechanical Engineering Unri as a Temporary Competency Test Center by a credible Professional Certification Body (LSP), affirming the institution's role in implementing the National Work Competency Standards (SKKNI). Targeting technicians with a minimum of one year of experience, the program had a dual objective: validating the existing practical skills while enhancing knowledge on crucial aspects like Occupational Health and Safety (K3) and environmentally compliant refrigerant handling. The PKM was implemented through structured stages, commencing with strict recruitment and selection, followed by comprehensive training delivered by Unri's competent lecturers, focusing on core competency units. The culmination was the Competency Test, conducted independently by certified Assessors from the partner LSP at the Unri TUK. The assessors evaluated participants' knowledge, skills, and work attitude through written, oral, and practical examinations. The main outcome of this activity was the successful certification of professional technicians. A total of 10 (ten) AC technicians were declared Competent and officially received the AC Technician Professional Competency Certificate from BNSP. This achievement significantly contributes to upgrading the quality and competitiveness of the local workforce, boosting professionalism, service quality, and career prospects for the certified technicians.
EVALUASI KAPASITAS PRODUKSI DAN IDENTIFIKASI KEBUTUHAN PENGEMBANGAN MESIN LEMANG BERBASIS VOICE OF CUSTOMER Anggraini Dwi Saputri; Anita Susilawati; Awaludin Martin; Feblil Huda; Dinni Agustina; Yogie Rinaldy Ginting; Herisiswanto Herisiswanto; Annisa Wulan Sari; Dedy Masnur; Putri Nawang Sari; Ari Andriyas Puji; Dodi Sofyan Arief; Yohanes Yohanes
Jurnal Pengabdian Kompetitif Vol. 5 No. 1 (2026): Jurnal Pengabdian Kompetitif (JPK)
Publisher : Komunitas Manajemen Kompetitif

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35446/pengabdiankompetif.v5i1.2931

Abstract

The implementation of the Closed Rotary Lemang Baking Machine at Rumah Lemang MSME in Pekanbaru improved burning time efficiency by 50%–62.5% per batch. However, field evaluation revealed a critical capacity gap: machine capacity (10 bamboo/batch) was significantly lower than traditional production capacity (40 bamboo/batch), resulting in lower actual throughput (6–7 bamboo/hour vs. 10–13 bamboo/hour) and reduced daily output (20–30 vs. 40 bamboo). This study analyzed this gap through throughput analysis and identified second-generation machine requirements using Voice of Customer (VoC). Methods included in-depth interviews with the MSME owner, production performance measurement, and comparative gap analysis. VoC results identified an ideal capacity of 50 bamboo/batch, with the owner already planning an independent modification as an indication of active technology adoption. This study recommends an iterative development approach with modular second-generation machine specifications grounded in real user needs.
Stakeholders’ Perspectives on Banking Support and Digital Accounting Adoption in the Palm Oil Industry Harry Patuan Panjaitan; Nicholas Renaldo; Achmad Tavip Junaedi; Nyoto Nyoto; Jahrizal Jahrizal; M Dalil; Dodi Sofyan Arief; Fifi Puspita; Rebecca La Volla Nyoto; Kristy Veronica
Luxury: Landscape of Business Administration Vol. 3 No. 2 (2025): Luxury: Landscape of Business Administration
Publisher : First Ciera Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61230/luxury.v3i2.135

Abstract

This study aims to investigate how stakeholders, including palm oil enterprises, smallholder cooperatives, banking institutions, and regulators, perceive the role of banking support in facilitating or hindering the adoption of digital accounting systems. This study employs a qualitative exploratory design to capture the diverse perspectives of stakeholders on the role of banking support in facilitating digital accounting adoption within the palm oil industry. A purposive sampling strategy will be employed to ensure participants possess direct experience with either banking support or digital accounting adoption. Data will be analyzed using thematic analysis. Interview transcripts, focus group notes, and documents will be coded inductively and deductively, guided by the research questions. The findings reveal that banks are not merely providers of financial capital but also act as institutional gatekeepers that shape reporting practices and encourage digital transformation. Larger enterprises view digital accounting as a strategic tool for efficiency and compliance, while smallholders often see it as a burdensome requirement.
Implementasi analytic hierarchy process dalam penentuan bobot key performance indicators pada pembangkit listrik turbin uap Akbar Anggriawan; Anita Susilawati; Dodi Sofyan Arief; Nazaruddin
Prosiding SNTTM Vol 23 No 1 (2025): SNTTM XXIII October 2025
Publisher : BKS-TM Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.71452/6yw8w905

Abstract

Optimalisasi Key Performance Indicators (KPI) pada pembangkit listrik turbin uap sangat penting untuk meningkatkan efisiensi operasional dalam industry pengolahan kelapa sawit. Penelitian ini menerapkan metode Analytic Hieararchy Process (AHP) untuk menentukan bobot relative setiap KPI, sehingga memfasilitasi pengambilan keputusan berbasis data untuk peningkatan kinerja. Empat KPI krusial dievaluasi melalui perbandingan berpasangan berdasarkan keahlian para pakar. Hasil penelitian menunjukkan bahwa power output (47,16%) merupakan KPI paling signifikan, diikuti oleh availability factor (38,58%), steam consumption (9,69%), dan capacity factor (4,58%). Nilai consistency ratio (CR) dari seluruh penilaian pakar berada di bawah 0,10, yang menunjukan bahwa hasil AHP tersebut dapat diandalkan.
Design and implementation of TOF (Tool Open Fan) to improve maintenance efficiency of exhaust fan in gland steam condenser at steam power plants Deden Mamun Sajaah; Aulia Ramadhan; Dodi Sofyan Arief
Prosiding SNTTM Vol 23 No 1 (2025): SNTTM XXIII October 2025
Publisher : BKS-TM Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.71452/xh6jk497

Abstract

This paper presents the design and implementation of TOF (Tool Open Fan) as an innovative solution to enhance the maintenance efficiency of exhaust fans in gland steam condensers (GSC) at coal-fired steam power plants. Conventional disassembly using puller tools often caused mechanical damage to the fan surface, leading to costly replacements and downtime of up to 38 days. The TOF tool was designed with an adjustable house, fix house, and jack bolt mechanism to provide safe, ergonomic, and efficient fan disassembly. Finite element simulations were conducted to analyze stress distribution on both the tool and the fan. Implementation at PLTU Tenayan demonstrated a significant reduction in maintenance duration, from 9 hours to 3 minutes, and reduced manpower from five to two workers. Financially, the innovation generated a saving of approximately IDR 104,500,000 per exhaust fan by avoiding unnecessary replacement. The study concludes that TOF offers both economic and safety benefits, contributing to power plant reliability and sustainable maintenance practices. Limitations include the need for further design adjustments for compatibility with different GSC configurations across power plants.
Analysis of co-firing palm oil waste for the economic and emission performance of PLTU in Riau Aulia Ramadhan; Anita Susilawati; Asral; Dodi Sofyan Arief; Dinni Agustina
Prosiding SNTTM Vol 23 No 1 (2025): SNTTM XXIII October 2025
Publisher : BKS-TM Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.71452/rkcrwn20

Abstract

This study evaluates the co-firing of palm oil industry waste biomass, specifically Palm Kernel Shell (PKS) and Empty Fruit Bunch (EFB) pellets, in coal-fired power plants (PLTU) in Riau, Indonesia, to support a sustainable energy transition. Empirical tests were conducted at PLTU Tenayan and Tembilahan, using biomass substitution rates of 5% and 50%, respectively. Key performance indicators, including Specific Fuel Consumption (SFC), Net Plant Heat Rate (NPHR), production cost, and exhaust emissions (SO₂ and NOₓ), were analyzed. Results show that 5% PKS co-firing at PLTU Tenayan reduced SFC from 0.871 to 0.856 kg/kWh and NPHR from 4,187 to 4,116 kCal/kWh, while 50% PKS co-firing at PLTU Tembilahan decreased SFC from 1.171 to 0.785 kg/kWh and NPHR from 5,312 to 3,625 kCal/kWh. Economically, PKS co-firing resulted in cost savings of up to Rp223.58/kWh. Emission measurements revealed SO₂ reductions up to 27.8% at PLTU Tenayan and 34% at PLTU Tembilahan (EFB scenario), with NOₓ emissions remaining stable or decreasing by up to 13%. Conversely, EFB pellet co-firing increased fuel consumption and production costs due to higher fuel prices and operational challenges. The study confirms that PKS co-firing is a viable and effective approach to enhance power plant efficiency, reduce emissions, and lower costs in palm oil-producing regions. Limitations include short test durations and limited plant sites; therefore, long-term monitoring is recommended to assess boiler integrity, operational stability, and emission performance for sustainable large-scale implementation. This research provides critical technical, economic, and environmental insights for advancing biomass co-firing in commercial coal power plants.
Co-Authors Abdul Khair Junaidi Achmad Tavip Junaedi Adhy Prayitno Adhy Prayitno Adhy Prayitno, Adhy Afrizal, Efi Agus Reforiandi Agus Reforiandi Agus Surya Permana Agus Surya Permana Ahmad Romadani Akbar Anggriawan Akbar Anggriawan Akbar, Mustafa Alvi Hidayat Amani, Nahrul Amir Hamzah Amri Pahlevi Amries Rusli Tanjung Andri Andri Anggraini Dwi Saputri Anggraini Dwi Saputri Anita Susilawati Anita Susilawati Anjananda Vitodi Annisa Wulan Sari Annisa Wulan Sari Ari Andriyas Puji Asral, Asral Athiyyah Rieke Hisana Athiyyah Rieke Hisana Atmaja, Hikmah Aulia Rahman Aulia Ramadhan Aulia Ramadhan Awaludin Martin Ayunita, Dyna Barib Bramawira Bayu Wiguna Brian Agung Cahyo P. Brilliant Yosef Pandapotan Cecilia Cecilia Cecilia, Cecilia Choir, Mustofa Cindi Melinda Malau Darmansyah Darmansyah Deden Mamun Sajaah Dedy Masnur, Dedy Deni Pranata Dian Haryanto Dinni Agustina Dinni Agustina Dinova, Alfito Doni saputra Doni Saputra Dyna Ayunita Edy Fitra Eko Jadmiko Eko Jadmiko Elgi Oki Andeska Erizal Hamdi Ervan Kurniawan Fauzul Hamdi Siregar Feblil Huda Fifi Puspita Fikri Aulia Firdaus M Fitra, Edy Galuh Leonardo Sihombing Gamal Fiqih Handonowarih Ginting, Yogie Rinaldy Gusrio Tendra Hanif Nugroho Aji Harris Aminuddin Harry Patuan Panjaitan Hendri Yanto Herisiswanto Herisiswanto Heru Pranoto I Gusti Bagus Wiksuana Ida Ayu Putu Sri Widnyani Ihsan, Rizki Al Ikhsan Rahman Husein Ilyandi, Rifki Imnadir, Imnadir Indro Parma Iskandar, Anwar Iwan Kurniawan Iwan Kurniawan Jahrizal Jaswar Koto Jheri Hermanto Johanes, Erik Sitio Junaidi, Abd Khair Keno Widodo Koto, Jaswar Koto, Jaswar Kristy Veronica Kurnia, Andry M Dalil M. Hanif Aprilyansah Mendofa, Dyon Shaputra MERRY SISKA Mhd Irvan Irwana Midriem Mirdanies Midriem Mirdanies Minarni Minarni Minarni Shiddiq Minarni Shiddiq, Minarni Mintarto . Mintarto, Mintarto Muflihana, Afdila Muflihana, Afdila Muftil Badri Muhammad Anjar Arrohman Muhammad Ikhsan Hamid Munirah, M. Musa, Sulaiman N. Nazaruddin Nanda Syaputra Nicholas Renaldo Nindy Daviny Novry Harryadi Nyoto Okazar, Okazar Putri Nawang Sari Putri Nawangsari Rahmat Hidayat Rahmat, Ridho Zarli Rahmatsyah Maksum Ramsi Rebecca La Volla Nyoto Romy . Roni Salambue Roni Salambue Saputra, Rachman Sarmaini Fridawaty SATRIYAS ILYAS Sherif, Jamaluddin Md Shodikin, Shodikin Sihombing, Galuh Leonardo Sihotang, Samsul Bahri Simaskot, Johar Sinta Afria Ningsih Siswahyudianto Sitio, Erik Johanes Solih, Aji Mahmud Sugianto, Irwan Suhardjo Sukemi Indra Saputra Sukma Aditya Sulaiman Musa Sunny Ineza Putri Syafri, Syafri Syahru ramadonal Tekad Indra Pradana Abidin, Tekad Indra Pradana Toni Darji Ulfa Hasnita Veronica, Kristy Vicky Vernando Dasta Wahid, Nabila Wasilah . Wilda Susanti Yohana Christia Navili Yohanes Yohanes Zulfebri Zulfebri