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All Journal International Journal of Power Electronics and Drive Systems (IJPEDS) Jurnal Optimasi Sistem Industri Abdimas Talenta : Jurnal Pengabdian Kepada Masyarakat Jurnal Hilirisasi IPTEKS (JHI) Eksakta : Berkala Ilmiah Bidang MIPA Jurnal Teknik Mesin Jurnal Abdi: Media Pengabdian Kepada Masyarakat Andalasian International Journal of Applied Science, Engineering, and Technology Jurnal Keselamatan Kesehatan Kerja dan Lingkungan METAL : Jurnal Sistem Mekanik dan Termal Ensiklopedia Research and Community Service Review
Dendi Adi Saputra M, Dendi Adi
Universitas Andalas
Agriculture, Biological Sciences & Forestry Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Dentistry Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Public Health Social Sciences Veterinary Other

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Analysis of the effect of environmental conditions on energy savings in lighting systems with dimming method in campus buildings Nazir, Refdinal; Akbar, Fajril; Malik, Hasmat; Saputra, Dendi Adi; Muharram, Igo Cikal
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 16, No 1: March 2025
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijpeds.v16.i1.pp657-672

Abstract

Our research is introducing a lighting system using dimming lamps to utilize natural sunlight to save electrical energy in campus buildings. It began with designing an LED light-dimming system using AC chopper technology. It was tested in library rooms in campus buildings. Its room is divided into three zones (A, B, C) based on the intensity of natural light reaching the room and the location of the work points. We analyzed the influence of the environment around the research object, including the location of work points, weather conditions, the position of the sun, and electrical energy saving in lighting systems using dimming LED lights in campus buildings. The test results show that implementing the proposed dimming system can reduce room electricity consumption by an average of 50.31% in good weather conditions. The location of the work point in the room dramatically influences the amount of this savings. For work point locations in zone C, these savings can reach 93.707%, while for work points in zone A, the savings are only 12.177%. The results show that the percentage of electricity consumption savings from the lighting system can be increased by increasing the natural light that reaches the room.
Design and Development of an Electric Gokart Prototype ‘E-Andalasian’ for Sustainable Campus Transportation Saputra, Dendi Adi; Dahlan, Hendery; Satria, Eka; Susanti, Lusi; Khairul, Fajri; Nabil, M. Naufalunn; Gusnanda, Raihan; Joice Natalie, Ezra; Fadhillah, M. Ahlan
Andalasian International Journal of Applied Science, Engineering and Technology Vol. 5 No. 1 (2025): March 2025
Publisher : LPPM Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/aijaset.v5i1.205

Abstract

This research focuses on the design, development, and optimization of the electric go-kart "E-Andalasian" as an environmentally friendly campus transportation solution. Structural analysis was performed using Finite Element Analysis (FEA) to evaluate stress distribution and deformation under static and dynamic loads. The study also optimizes the BLDC motor, 72V 40Ah lithium battery, and controller to achieve efficient and reliable performance. Results indicate critical stress points at wheel joints, with recommendations for aluminum alloy use to enhance weight efficiency. Experimental testing showed that the motor achieved a maximum torque of 44.52 N.m and 6447 RPM, while the battery supports a range of 40 km with a charging time of 2 hours 9 minutes. Although the maximum speed reached 59 km/h, additional optimization is required to meet the original design target. The findings provide a prototype foundation for future improvements and contribute to green campus mobility.
Pengaruh Secondary Skin Dengan Variasi Kemiringan Sudut Fasad Terhadap Efisiensi Energi Dan Kenyamanan Termal Ruangan Rinaldi, Irwan; Saputra, Dendi Adi; Rozi, Melda
Jurnal Teknik Mesin Vol 18 No 1 (2025): Jurnal Teknik Mesin
Publisher : Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/jtm.18.1.1865

Abstract

This study examines the effect of applying secondary skin with varying slope angles on the facade on energy efficiency and indoor thermal comfort. Facades with varying slope angles are designed to respond adaptively to external environmental conditions, such as solar radiation intensity, air temperature, and wind movement, with the aim of minimizing the building's thermal load and improving overall thermal performance. An experimental approach is used to evaluate the effectiveness of secondary skin with varying slopes. The thermal comfort parameters measured include air temperature, relative humidity, lighting intensity, and energy requirements for cooling, all of which are analyzed based on ASHRAE standards. The results of the study indicate that the use of facades with opening slopes of 10°, 20°, and 30° can reduce the room cooling load by 11.05%, 10.95%, and 10.80%, respectively. In addition, there was a decrease in the average Predicted Mean Vote (PMV) value of 0.059 (5.03%) at a slope of 10°, 0.073 (6.29%) at a slope of 20°, and 0.078 (7.20%) at a slope of 30°. These findings indicate that secondary skin with variations in the slope angle of the facade is an innovative and sustainable approach in passive cooling strategies, which contributes to reducing energy consumption.
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

Abstract

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.
Pre-Study on the Development of Internet of Things-Based Prototype Data Logger for Measuring Heat Sufficiency Number Syukri, Daimon; Rini; Deden Dermawan Septina; Rudi Alfiansyah; Aurelia Amaliyah Tarumiyo; Yasmin Azzahra; Dendi Adi Saputra
EKSAKTA: Berkala Ilmiah Bidang MIPA Vol. 26 No. 02 (2025): Eksakta : Berkala Ilmiah Bidang MIPA (E-ISSN : 2549-7464)
Publisher : Faculty of Mathematics and Natural Sciences (FMIPA), Universitas Negeri Padang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/eksakta/vol26-iss02/586

Abstract

This study aimed to develop an IoT-based data logger prototype to improve data acquisition and monitoring during the sterilization process. Achieving an adequate heat sufficiency value, commonly known as the F0 value, was crucial for effective sterilization, and a thermocouple sensor was typically employed for temperature recording. The research involved designing, constructing, and testing the prototype with a focus on enhancing durability and functionality. Key improvements included adding waterproof sealants to prevent leakage, integrating connectors for enhanced connectivity, and coating the sensor's connector end to ensure long-term performance. Performance evaluation compared the improved IoT data logger with a conventional data logger in terms of heat penetration measurement. Results showed that the IoT prototype recorded heat penetration data with comparable accuracy to the conventional system, confirming its reliability for practical application. The bias for the difference was less than 10%. This innovation demonstrated the potential for improved monitoring in sterilization processes, contributing to enhanced process control and product safety.
A Cassava Washing Appliance Design for The Home Industry Safitri, Riska; Zadry, Hilma; Saputra, Dendi Adi; Amin, Muhammad
Andalasian International Journal of Applied Science, Engineering and Technology Vol. 3 No. 2 (2023): July 2023
Publisher : LPPM Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/aijaset.v3i2.89

Abstract

The food business opportunity is very interesting for home industry entrepreneurs in West Sumatra, a home industry of cassava chips. The step of the cassava chip production process that takes longer time than the other step is the washing process. The cassava washing process is carried out manually because washing device that uses motor drives are not affordable for home industry entrepreneurs. In addition, the cassava washing process makes a physical complaint from the operators. Therefore, this research designs a cassava washer that is affordable for the home industry by considering design methods, ergonomic aspects, and customers' needs. This design is carried out using the Quality Function Deployment (QFD) method to translate the voice of the customer into technical and design characteristics, morphological charts for generating alternative designs, and an objective weighted method for evaluating that alternative. The result of this research is the design of a cassava washer which is more practical because it makes the operator works easier and can save time in the washing process. It is also very affordable, with an estimated cost of production IDR2,397,743.
Analysis of Existing Area, Clean Water Treatment, and Distribution Network Evaluation in Nagari Magek, Agam Regency, West Sumatra Khair, Hafizhul; Utami, Rahmi; Adi Rahayu, Silda; Adi Saputra, Dendi; Pradana, Agung; Khairunnisa, Fauziah; Adli, Muhammad
ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat Vol. 9 No. 2 (2024): ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/abdimastalenta.v9i2.17840

Abstract

Nagari Magek Village in Agam Regency, West Sumatra, faces significant challenges in managing clean water resources. To address these challenges comprehensively, a holistic approach is essential, involving through area analysis, water treatment, and evaluation of distribution networks to ensure efficient and equitable water distribution. It is crucial to adhere to the principles of water resource conservation, utilization, and management as stipulated in Law Number 17 of 2019 on water resource management, which must be observed to ensure legal clarity in water management practices. The community service team handles clean water problems in Nagari Magek by designing a clean water treatment system that includes aeration, sedimentation, and filtration units. This process improves water quality by reducing yellowish color and eliminating unpleasant odors. However, the capacity of the treatment plant is not able to meet the increasing water demand, while the galvanized pipe distribution network has not been functioning optimally. Based on simulations using EPANET 2.2 software, it was found that the water flow speed in the pipes was still below the optimal range due to the diameter of the pipes being too large. The solution applied was to increase the processing discharge to 10 L/s (0,01 m3/s), which succeeded in increasing the flow rate according to the regulatory criteria. This recommendation improves the efficiency of the distribution system and ensures better water quality for the people in Nagari Magek.
STRATEGI PENGELOLAAN KEUANGAN, PENINGKATAN KONSISTENSI PRODUKSI, DAN BRANDING DIGITAL DALAM MENINGKATKAN PENJUALAN KERUPUK KAMANG Mazelfi, Ihsani; Ramadhani, Ratih; Adisti, Adila; Saputra, Dendi Adi; Wellyalina, Wellyalina
Ensiklopedia Research and Community Service Review Vol 5, No 1 (2025): Vol. 5 No. 1 Oktober 2025
Publisher : Lembaga Penelitian dan Penerbitan Hasil Penelitian Ensiklopedia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33559/err.v5i1.3444

Abstract

This community service program aims to address three main issues faced by the partner: production, marketing, and managerial aspects. In production, problems include poor water quality, inconsistent production, product durability in packaging, and the absence of microbiological testing. Good water quality and stable supply are essential for maintaining product quality and production efficiency. In marketing, the challenges involve unprofessional packaging, limited understanding of digital marketing, and low brand awareness. Professional packaging and digital marketing strategies can enhance product value and branding. In financial management, issues include unsystematic bookkeeping, suboptimal pricing strategies, limited understanding of cost of goods sold (COGS), lack of PIRT certification, and unregistered brand intellectual property. Proper financial recording and COGS knowledge are crucial for cash flow control and accurate pricing. The program aims to improve financial management efficiency, ensure consistent production quality, and enhance branding and digital marketing. Expected outputs include a nationally accredited journal article, intellectual property registration, media publication, and promotional video.Keywords: MSMEs; Digital Marketing; SIAPIK; Water Filter; Brand Awareness
Optimalisasi Proses Perakitan Pesawat Tanpa Awak dengan Metoda Critical Path Methods (CPM) Dendi Adi Saputra M; Eka Satria; Gusman Arif Pandy
Jurnal Optimasi Sistem Industri Vol. 15 No. 1 (2016): Published in March 2016
Publisher : The Industrial Engineering Department of Engineering Faculty at Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/josi.v15.n1.p87-92.2016

Abstract

The manufacturing of Unmanned Aerial Vehicles (UAV) requires a design process that involves the design of aircraft’s components such as fuselage, wing, horizontal stabilizer, vertical stabilizer, ailerons, elevators, tail, and wing. The process takes a long time. Therefore, the distribution of structural works based on their characteristics and classifications by considering their design attributes and manufacturing processes is required. This research aims to find the optimal time and critical path of the assembly process of an UAV based on product work breakdown structure (PWBS) and critical path method (CPM). The result reveals that the optimal assembly time is 139 minutes. Finally, the application of product-oriented structural work distribution and the optimization of the assembly activities involved in the critical path successfully minimize the duration of the assembly process.
A Numerical Study on the Effectiveness of U-Shaped Steel Metallic Dampers Applied to Braced Building Structures under Dynamic Loading Efrizal; Eka Satria; Irsal Oktofirnof; M. Raffi Akbar; Lovely Son; Dendi Adi Saputra; Mulyadi Bur
METAL: Jurnal Sistem Mekanik dan Termal Vol. 10 No. 1 (2026): METAL : Jurnal Sistem Mekanik dan Termal
Publisher : Department of Mechanical Engineering, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/metal.10.1.8-15.2026

Abstract

The increasing demand for seismic-resilient structures has encouraged the development of advanced energy dissipation devices capable of reducing structural damage under strong ground motions. Among various passive control systems, metallic dampers have gained significant attention due to their stable hysteretic behavior, high energy dissipation capacity, and simplicity of installation. This study investigates the seismic performance of a building structure equipped with U-shaped steel metallic dampers installed within a chevron bracing system. The research is conducted through two complementary analytical stages. First, a detailed nonlinear finite element analysis is performed to evaluate the cyclic behavior of the U-shaped damper, accounting for both material and geometric nonlinearities. The resulting hysteresis curves are used to determine the elastic stiffness and energy dissipation capacity of the damper. In the second stage, the obtained mechanical properties are implemented into a dynamic numerical model of a multi-story building, where the damper is represented as spring element connecting the bracing system to the main structural frame. Linear time-history analyses are then conducted under earthquake ground motions to assess the dynamic response of the structure. The seismic performance of the damped structure is compared with that of an identical structure without metallic dampers in term of dynamic response. The results demonstrate that the proposed U-shaped metallic damper significantly enhances seismic performance by reducing structural demands and concentrating inelastic deformations within replaceable energy-dissipating components
Co-Authors Abdul Hakam Adila Adisti Adjar Pratoto, Adjar Adli Havendri Afrinaldi, Feri Akio Kodama Aliffa Oktanofrida Hade Amrizal Anas Andoni Prayogi Aurelia Amaliyah Tarumiyo Baehaqi Bambang Istijono, Bambang Daimon Syukri Deden Dermawan Septina Devi Chandra Devi Chandra Ediset, Ediset Efrizal Eka Satria Eka Satria, Eka Fadhillah, M. Ahlan Fahri Triharyono Fajril Akbar Fauzan . Febi Putri Yastari Febrin Anas Ismail Fharel Abdillah Gusman Arif Pandy Gusnanda, Raihan Hafizhul Khair Hasmat Malik Havendri, Adly Hendery Dahlan, Hendery HG, Sabri Haris Hilma Zadry Ilhamdi Rusydi Irsal Oktofirnof Is Prima Nanda Ismet Hari Mulyadi Ismet Ismet, Ismet Joice Natalie, Ezra Kamil, Insannul Khairul, Fajri Khairunnisa, Fauziah Lovely Son Lovely Son, Lovely Lusi Susanti, Lusi M. Raffi Akbar Mazelfi, Ihsani Muhammad Adli, Muhammad Muhammad Amin Muhammad Amin Muhammad Fadhil Rahman Muharram, Igo Cikal Mulya Cipta Nurmansyah Mulyadi Bur Nabil, M. Naufalunn Nurhamidah, Nurhamidah Pradana, Agung Prima Fithri Rahayu, Silda Adi Rahil Abde Andika Rahmi Utami Ramadhani, Ratih Refdinal Nazir Ridwan Ridwan Rinaldi, Irwan RINI Riska Safitri Riska Safitri, Riska Riswan Riswan Rozi, Melda Rudi Alfiansyah Rusdimansyah Ruzita Sumiati Saputra, M. Fazri Irwan Suci Oktri Viarani Syafi’i Syafi’i Syafi’i Syafi’i Trisfa Augia Uyung Gatot Syafrawi Dinata Wellyalina, Wellyalina Yasmin Azzahra Zadry, Hilma