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All Journal Jurnal Optimasi Sistem Industri INVOTEK: Jurnal Inovasi Vokasional dan Teknologi Syntax Literate: Jurnal Ilmiah Indonesia Jurnal Teknik Industri : Jurnal Hasil Penelitian dan Karya Ilmiah dalam Bidang Teknik Industri MOTIVECTION : Journal of Mechanical, Electrical and Industrial Engineering Warta Pengabdian Andalas: Jurnal Ilmiah Pengembangan Dan Penerapan Ipteks METAL : Jurnal Sistem Mekanik dan Termal

Afrinaldi, Feri

Fakultas Teknik, Universitas Andalas, Padang, Indonesia

Author-ID : 2567866

Humanities Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Social Sciences Transportation Other

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Perbaikan Postur Kerja Proses Muat Kelapa Sawit Berdasarkan Metode Selang Alami Gerak (SAG) Fadli Arsi; Hilma Raimona Zadry; Feri Afrinaldi
invotek Vol 20 No 1 (2020): INVOTEK: Jurnal Inovasi Vokasional dan Teknologi
Publisher : Universitas Negeri Padang

Abstract— The harvesting of palm oil in Indonesia, is still done manually. This research analyzed the movement of the palm oil loading process manually, which risks of Musculoskeletal Disorders (MSDs) to workers. The methods used in this study include observation, interviews, the Nordic Body Map (NBM) Questionnaire, the Natural Range of Motion (ROM), and biomechanical load calculations. NBM is used to identify complaints of the worker’s body parts. The ROM method is used to analyze the risk of body movements when carrying out palm oil loading activities, and the calculation of biomechanical loads is to determine the burden on the worker's body parts. The results showed that there are three parts of the body involved in the process of loading palm oil so that workers often complain of pain, namely the shoulders, neck, and back. The biomechanical load that occurs on the back of the worker is 4866.36 N. This value exceeds the safety limit recommended by the National Institute of Occupational Safety and Health (NIOSH) which is as high as 3400 N. Analysis using ROM found that the existing loading process of oil palm causes shoulders, neck, and back to form angles of 120°, 31° and 12°, respectively. This angle is in the danger zone based on ROM. Improvements are made by changing the work posture in the loading process of oil palm and giving changes to the body angle to 90° on the shoulder, 14° on the neck, and 2° on the back, which are already in the safe zone. The biomechanical load on the back after the improvement also decreased to 3287.38 N

Model Optimasi Perancangan Jaringan Rantai Pasok Biomassa dari Tandan Kosong Kelapa Sawit di Sumatera Barat Febriza Imansuri; Rika Ampuh Hadiguna; Feri Afrinaldi
Jurnal Optimasi Sistem Industri Vol. 18 No. 1 (2019): Published in May 2019
Publisher : The Industrial Engineering Department of Engineering Faculty at Universitas Andalas

West Sumatra has great potential in developing biomass based on palm oil waste. This is because the largest plantation production in West Sumatra comes from the oil palm commodity of 1,082,820 tons in 2014. Therefore, it is necessary to design a model of supply chain biomass network for the distribution of Empty Fruit Bunches (EFB) from CPO factory suppliers located in West Sumatra and distributed to Depot Pertamina Teluk Kabung. Stages performed in the implementation of this study began with a preliminary study to determine the potential of biomass in West Sumatra. Furthermore, the design of chain supply chain optimization model by identifying supply chain activity, knowing the characteristics of supply chain system and make the formulation of mathematical model. The design of supply chain biomass from Empty Fruit Bunches (EFB) in West Sumatera, starting from raw material Tandan Kosong Kelapa Sawit (TKKS) sourced from Crude Palm Oil (CPO) factory in West Pasaman Regency and surrounding. This is because Pasaman Barat Regency is the central agroindustry of oil palm plantation which has 17 most palm oil factories in West Sumatra. The potential of bioethanol derived from CPO waste can be done by establishing bioethanol plant located with the same CPO factory so that it is adjacent to the source of the raw material. The result of the mathematical model mixed integer linear programming is placement of bioethanol plant location at PT Pasaman Marama Sejahtera with medium scale and total cost of IDR 251,563,700,000.00.

Pelatihan Standar Penanganan Pangan Rendang di Sentra Produksi Randang Reinny Patrisina; Prima Fithri; Lusi Susanti; Hilma Raimona Zadry; Difana Meilani; Eri Wirdianto; Jonrinaldi Jonrinaldi; Desto Jumeno; Asmuliardi Muluk; Alexie Herryandie; Feri Afrinaldi; Henmaidi Henmaidi; Alfadhlani Alfadhlani; Insannul Kamil; Dicky Fatrias; Taufik Taufik; Wisnel Wisnel; Alizar Hasan; Rika Ampuh Hadiguna; Ahmad Syafruddin; Nilda Tri Putri; Elita Amrina; Ikhwan Arief; Afri Adnan
Warta Pengabdian Andalas Vol 26 No 2 (2019)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat (LPPM) Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jwa.26.2.112-116.2019

Nowadays, consumers are getting smarter in choosing products, including food products. Food safety is an important thing that must be considered by the food industry. Unsafe food production can only be done because of food, product needs, lengthy legal process, but can also damage the community. Customer needs demand certainty from the food provided in a way that meets food safety standards, from the garden to the table. To fulfill this reason, all parties involved in the food production process must know and understand well matters related to food procurement standards for the products produced. Rendang is one of the traditional foods of West Sumatra that has begun worldwide. This requires the need to produce rendang with food safety standards is very important. Based on this, within the framework of the Community Service Department of Industrial Engineering UNAND conducts training / technical guidance related to the rendang food procurement standards with training on Good Manufacturing Practices (GMP). This activity was expected to help Small and Medium Enterprises to get business standardization.

Model Efisiensi Biaya Tagihan PJU (Penerangan Jalan Umum) Non Meteran Dengan Menggunakan Metode Benefit Cost Ratio Studi Kasus di Kabupaten Solok Candra Putra Gusriadi; Lusi Susanti; Feri Afrinaldi
Syntax Literate Jurnal Ilmiah Indonesia
Publisher : Syntax Corporation

meteran. Terdapat masalah dalam perhitungan PJU non meteran yaitu biaya tagihan listrik yang dibayarkan tidak sesuai dengan penggunaan energi listrik, perhitungan tarif tagihan listrik PJU non meteran mengacu pada SK Direksi PT. PLN No. 025.E/012/DIR/2002 dan SK Dir Nomor 022.E/012/DIR/2003. Tingginya tagihan listrik PJU non meteran berdampak pada tagihan bulanan PJU, Maka dari itu, upaya efisiensi dalam penggunaan energi pada penerangan jalan umum diharapkan dapat menghemat anggaran Pemerintah Daerah dan membantu pemerintah dalam pengelolaan energi. Penelitian ini bertujuan menganalisis upaya efisiensi penggunaan PJU non meteran dengan metode analisa/perhitungan/rumusan/studi kasus benefit cost ratio (BCR) untuk menemukan model efisiensi yang tepat di Kabupaten Solok. Studi dilakukan dengan pengumpulan data berupa kondisi PJU yang terpasang di seluruh wilayah Kabupaten Solok. Berdasarkan hasil survey inventarisasi PJU antara PT. PLN dan Pemda Kabupaten Solok yang dilaksanakan pada Bulan Februari 2021 didapatkan jumlah titik PJU non meteran sebanyak 5.030 titik dimana 3.123 titik atau 62% PJU non meteran menggunakan lampu tipe pelepas gas yang tidak hemat energi. Dengan kondisi penggunaan lampu tidak hemat energi lebih mendominasi pada PJU non meteran di Kabupaten Solok, terlihat sebuah peluang efisiensi biaya tagihan dengan penggantian seluruh lampu pelepas gas menjadi lampu hemat energi, yaitu LED 50W. Jumlah tagihan bulanan PJU di Kabupaten solok yaitu Rp 519.440.115 yang terdiri dari PJU non meteran sejumlah Rp 438.070.396 dan tagihan PJU meteran sebesar Rp 81.396.719

Budaya Seiri, Seiton, Seiso, Seiketsu, dan Shitsuke di Industri Kecil Menengah Kerupuk Azizah Dina Rahmayanti; Feri Afrinaldi; Reinny Patrisina; Yumi Meuthia; Hilma Raimona Zadry; Lusi Susanti; Prima Fithri; Desto Jumeno; Luthfi Fakhri Ramadhan
Warta Pengabdian Andalas Vol 30 No 2 (2023)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat (LPPM) Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jwa.30.2.192-200.2023

This community service activity was carried out by designing a cabinet for finished products and handing over the cabinet to a small and medium industry producing various types of crackers, namely IKM Kerupuk Azizah. IKM Kerupuk Azizah used open shelves to store packaged finished products. This practice was unhygienic and risky. Animals like rats and insects ate and damaged the materials and products. In addition, the warehouse needed to look more tidy. Moreover, from an aesthetic point of view, it was unattractive. A storage cabinet was designed to solve this problem. In designing the cabinet, available space, the number of piles of finished products, and the dimensions of the packaged finished products were considered. The results showed that, with a storage cabinet for finished products, IKM Kerupuk Azizah improved products’ quality and hygiene so that consumers would have more confidence in purchasing the products. In addition, IKM Kerupuk Azizah also applied the Seiri, Seiton, Seiso, Seiketsu, and Shitsuke (5S) principles in their work environment to create a clean, healthy, and comfortable workplace.

Analytical Study of Trends in Measuring Sustainability Performance and Indexes Jasri, Harpito; Kamil, Insannul; Fatrias, Dicky; Afrinaldi, Feri; Herryandie B.A, Alexie
JTI: Jurnal Teknik Industri Vol 10, No 2 (2024): December 2024
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/jti.v10i2.33779

Sustainability was a crucial underpinning for addressing and mitigating the impacts of climate change. It was not only considered a moral responsibility but also a key element in building a sustainable future. The measurement of sustainability index and performance played a very important role in various sectors because it provided an objective basis for evaluating the economic, social, and environmental impacts of a company or organization's activities. Various sectors needed to play a key role through the implementation of integrated sustainability activities, including efforts to reduce pollution, utilize resources efficiently, increase engagement with communities as stakeholders, and ensure sustainable economic progress. This study aimed to explore and analyze the trend of measuring sustainability index and performance that were developing from various relevant literature through a systematic literature review. The method used in this study was a systematic literature review by adopting the PRISMA-P stages. The PICOS Framework was used in compiling inclusion and exclusion criteria. The PRISMA-P 2020 protocol was employed in the screening process, and VOSviewer was used in the bibliometric analysis. Based on the analysis, it was concluded that research related to sustainability in the higher education and construction project sectors was important to explore further. The most popular method used was the mixed method, while observation and questionnaires were the most widely used data collection methods.Keywords: sustainability, index measurement, performance measurement, systematic literature review.

Effect of Trigger Configuration on Crash Box Energy Absorption in Vehicle Collisions using MSC Dytran Satria, Eka; Saputra, Dendi Adi; Dahlan, Hendery; Son, Lovely; Saputra, M. Fazri Irwan; Afrinaldi, Feri; Susanti, Lusi; HG, Sabri Haris
METAL: Jurnal Sistem Mekanik dan Termal Vol. 9 No. 1 (2025): Jurnal Sistem Mekanik dan Termal (METAL)
Publisher : Department of Mechanical Engineering, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/metal.9.1.38-45.2025

Vehicle crashworthiness is a critical aspect of automotive safety engineering designed to minimize injury to occupants during collisions. This paper investigates the role of trigger mechanisms in enhancing crashworthiness by managing energy absorption and deformation during impact. Trigger mechanisms, including structural features like grooves, holes, or geometric discontinuities, initiate controlled deformation, optimizing energy dissipation. This study evaluates the effectiveness of crash boxes with various cross sections and six trigger designs: bead initiator, diamond notch, smaller thickness, circular notch, circular holes, and oval holes, to absorb energy of collision using computational software, MSC Dytran. The results show that a crash box with an octagonal section absorbs more energy than those with square, rectangular, or hexagonal sections. Among the introduced trigger designs, the models of bead initiator, circular notches, and circular holes were considerably the most effective in energy absorption.

Literature Review on the Relationship between Total Productive Maintenance (TPM), Lean Maintenance, and Healthcare Systems’ Sustainable Performances Taufik, Taufik; Kamil, Insannul; Hasan, Alizar; Afrinaldi, Feri
METAL: Jurnal Sistem Mekanik dan Termal Vol. 9 No. 1 (2025): Jurnal Sistem Mekanik dan Termal (METAL)
Publisher : Department of Mechanical Engineering, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/metal.9.1.54-62.2025

This paper explores theoretical and practical foundations for integrating Total Productive Maintenance (TPM) and lean maintenance to achieve healthcare systems' sustainable performances. A systematic literature review is performed. The review methodology consists of seven steps: defining the research question, searching the literature, screening the literature, documenting the search results, assessing articles' quality, documenting the review results, and synthesizing. The search found a limited number of publications exploring the relationship between TPM and lean maintenance to achieve sustainable performances of healthcare systems. Most contributors were from developing countries. The publication peaked in 2023 and 2024, and the number tended to rise from 2012 to 2024. The synthesis process shows limited evidence about the relationship between TPM and hospital sustainable performance. Theoretically, the relationship between TPM, lean maintenance, and sustainable performance in healthcare systems is plausible. However, the concepts were rarely tested. For future research, this paper proposes to investigate the relationship between TPM practices and hospitals' sustainable performance moderated by lean maintenance. A conceptual model is also presented.

Environmental and Socio-Economic Impacts of Crude Palm Oil and Kernel Production Kristina, Dian; Afrinaldi, Feri; Putri, Nilda Tri
MOTIVECTION : Journal of Mechanical, Electrical and Industrial Engineering Vol 7 No 3 (2025): Motivection : Journal of Mechanical, Electrical and Industrial Engineering
Publisher : Indonesian Mechanical Electrical and Industrial Research Society (IMEIRS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46574/motivection.v7i3.480

Palm oil had become one of Indonesia’s leading commodities, contributing significantly to national economic development; however, it faced sustainability challenges, particularly concerning greenhouse gas (GHG) emissions in line with international standards. This study examined the measurement of environmental impact per monetary unit of Crude Palm Oil (CPO) and kernel production in Palm Oil Mill X, by integrating environmental and socio-economic impacts through Eco-efficiency Analysis. The environmental impact assessment was conducted using the Life Cycle Assessment (LCA) method, while the socio-economic impact values were measured using the Economic Input-Output (EIO) method. The data used in this study consisted of primary data and secondary data. Primary data were collected directly from Palm Oil Mill X, including information on production volumes, energy consumption and waste generation. Secondary data were obtained from published literature, government reports and national statistical database to complement and validate the primary data used in the analysis. The study evaluated eleven environmental impact categories, one of which was GWP. The research findings indicated that for a functional unit of 1 ton of CPO, the GWP was measured at 556.31 kg CO₂ eq/ton CPO, with approximately 80% of the GWP originating from CPO processing and wastewater (POME). In terms of socio-economic aspects, the wage multiplier was recorded at 0.930 and the tax contribution at 0.0698, demonstrating the significant contribution of the palm oil industry to labor income. The final economic contribution value (G⁺) was noted to be Rp 23,728,407/ton CPO. The results of the Eco-efficiency Analysis revealed that the GWP per Rupiah was 2.34 × 10⁻⁵ kg CO₂ eq/Rp, indicating opportunities for emission reduction through the use of cleaner energy. This study provided a quantitative overview of the interrelationship between environmental performance and socio-economic benefits, serving as a strategic reference for enhancing the sustainability of the palm oil industry.

An Application of Genetic Algorithm in Determining Salesmen’s Routes: A Case Study Zhafira, Noufal; Afrinaldi, Feri; Taufik
Jurnal Optimasi Sistem Industri Vol. 17 No. 1 (2018): Published in April 2018
Publisher : The Industrial Engineering Department of Engineering Faculty at Universitas Andalas

This paper presents a case study of determining vehicles’ routes. The case is taken from a pharmaceutical products distribution problem faced by a distribution company located in the city of Padang, Indonesia. The objective of this paper is to reduce the total distribution time required by the salesmen of the company. Since the company uses more than one salesman, then the problem is modeled as a multi travelling salesman problem (m-TSP). The problem is solved by employing genetic algorithm (GA) and a Matlab® based computer program is developed to run the algorithm. It is found that, by employing two salesmen only, the routes produced by GA results in a 30% savings in total distribution time compared to the current routes used by the company (currently the company employs three salesmen). This paper determines distances based on the latitude and longitude of the locations visited by the salesmen. Therefore, the distances calculated in this paper are approximations. It is suggested that actual distances are used for future research.

Co-Authors Afri Adnan Ahmad Syafruddin Alexie Herryandie Alfadhlani Alizar Hasan Arsi, Fadli Asmuliardi Muluk Candra Putra Gusriadi Desto Jumeno Dicky Fatrias Difana Meilani Dina Rahmayanti Eka Satria, Eka Elita Amrina Eri Wirdianto Febriza Imansuri Fernando, Ramadhan Rizki Hendery Dahlan, Hendery Henmaidi Henmaidi Herryandie B.A, Alexie HG, Sabri Haris Hilma Raimona Zadry Ikhwan Arief Imansuri, Febriza Insannul Kamil, Insannul Jasri, Harpito Jonrinaldi Kamil, Insannul Kristina, Dian Lovely Son, Lovely Lusi Susanti Lusi Susanti, Lusi Luthfi Fakhri Ramadhan Nilda Tri Putri Prima Fithri Putri, Wahyu Handayani reinny patrisina Rika Ampuh Hadiguna Saputra, Dendi Adi Saputra, M. Fazri Irwan Taufik Taufik Taufik Taufik Taufik Wisnel Wisnel Yumi Meuthia Zhafira, Noufal

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