International Journal of Industrial Research and Applied Engineering 2021-10-30T06:18:16+07:00 Handy Wicaksono Open Journal Systems <table cellpadding="7"><tbody><tr><td valign="middle"><a href="/index.php/jirae"><img style="border-style: none;" src="/cover/Jurnal_FTI.jpg" alt="" /></a></td><td align="justify" valign="top"><p>JIRAE is an <strong>Open Access</strong> peer-reviewed international journal providing a medium for the academic and industrial community to share cutting-edge research and development in various aspects of industrial technology and applied engineering. The three-pronged objectives are:</p> <ul><li>To encourage research work in the field of industrial technology and applied engineering among scientists, researchers, engineering practitioners, and industrial experts to improve efficiency, reduce costs, and generate high-quality products / services;</li><li>To promote the adoption and development of comprehensive and state-of-the-art technologies for enterprises and industries;</li><li>To bridge the theoretical and practical gap between academia and industry, and advocate collaboration to address enterprise and industry challenges.</li></ul>JIRAE is published semiannually – in April and October – by the Institute of Research and Community Outreach, Petra Christian University.<br /><strong> </strong><strong> </strong></td></tr></tbody></table> Inventory Routing Problem for Perishable Product with Dynamic Demand and Spoilage Rate 2021-10-30T06:18:16+07:00 Krisna Wahyudi I Gede Agus Widyadana I Nyoman Sutapa The paper presents an inventory routing problem for perishable products using dynamic demand and spoilage rate data. This problem has three main costs for the simulation criteria: holding inventory cost, routing shipment cost, and perishable product cost with a single supplier and many retailers. Instead of the problem, there are 2 set decision variables inventory level range and shipping route. The simulation uses a Genetic Algorithm method to find the minimum cost. It shows that the dynamic data demand can be optimized, and the dynamic demand data have bigger cost consequences than the static demand data 2020-10-30T00:00:00+07:00 Copyright (c) Business Process Simulation Game as a Business Process Learning Tool for Retail Companies 2021-10-30T06:18:16+07:00 Joella Joella Yulia Yulia Andreas Handojo Game-based Learning has become one of the most developed learning methods in this 21st century. Game-based Learning is a good learning method because it can create a virtual world where players can simulate real-world problem-solving. A business process is a series of interrelated activities to achieve certain business goals, executed sequentially or parallel, both inside and outside the company. The complexity of business processes causes the learning process to be less than optimal, if only in the form of theoretical exposure. Practices are needed to hone students’ business process management skills, which will be too risky to be done in the real world. Therefore, this research develops a business process simulation game to facilitate students in practicing their business process management skills. The author analyzed the existing business process simulation games, determined the game system design, developed the game, tested the game, and distributed questionnaires to users. Based on the results of testing and implementing the system that has been done, the game developed in this research has a positive impact on users. The features in the game are running well and as expected. The game provides benefits to both teachers and students, so this game is suitable for being used as retail companies' business process learning tool 2020-10-30T00:00:00+07:00 Copyright (c) Usage of Miniature Houses Built using Construction Materials in Engineering Educational Corporate Social Responsibility (CSR) Programs 2021-10-30T06:18:16+07:00 Kevin Effendy Tanti Octavia Gunawan Budi Wijaya The demand for engineers in Indonesia has not been met with the number of professional engineers working in their respective fields. This is partly due to the low interest in engineering among students. Therefore, various programs are implemented by the government and companies to be able to introduce, educate and change perceptions on the field of engineering. This research was conducted to propose a Corporate Social Responsibility (CSR) program in order to meet these objectives. The proposed program is an educational program in the form of a workshop on residential construction using miniature houses built of real construction materials as demonstration and learning tools. The program is aimed at high school students in accordance with the goal of increasing public interests and the number of potential engineers, particularly in the field of civil engineering. The validation process of the proposed program is done by distributing questionnaires to construction companies and high school students as stakeholders in the program's execution. The validation results show that the proposed program is quite attractive to construction companies and high school students, including those who are not interested in the engineering field. The program is also deemed feasible and able to meet the goal of developing students' interest in engineering 2020-10-30T00:00:00+07:00 Copyright (c) Crusher Design for Plastic Waste in 3D Printing 2021-10-30T06:18:16+07:00 Cedric Rahardjo Yopi Yusuf Tanoto Ninuk Jonoadji 3D printing is a manufacturing process widely used in the 4.0 Industry era. One of the concepts of 3D printing is to make prototypes, whether it is for industrial purposes or studying purposes. Knowing that a prototype is only needed in the early stages of any process, it is bound to be redundant in a short time; thus, the plastics used to prototype using the 3D printing technology are now labeled as waste. Since most plastics used for 3D printing are thermoplastics, they can be recycled to live another purpose. This research aims to design a crusher dedicated to processing 3D printing waste as the first step towards recycling these wasted materials. This step encourages students to comprehend the process of designing and manufacturing such equipment while also opening doors for the faculty towards recycling 3D printed plastics. The designing process consists of surveying the materials commonly used for 3D printing, calculating the machine elements, choosing the mechanism needed to destroy the material, and designing a model from the calculations. The outcome of the design is a device that can crush and destroy PLA (Polylactic Acid) and ABS (Acrylonitrile Butadiene Styrene) plastics into pieces ready for recycling 2020-10-30T00:00:00+07:00 Copyright (c) A Simple Sinusoidal Buck Converter Working as A Single-Phase Grid-Connected Inverter 2021-10-30T06:18:16+07:00 Hanny H. Tumbelaka The need for a simple grid-connected inverter is increasing. The integration of a simple buck converter and a push-pull converter to be a grid-connected inverter is presented in this paper. The buck converter is controlled by a sinusoidal duty ratio to produce a series positive half-cycle of a sine wave. Then, the push-pull converter solves it to generate the complete sinusoidal output voltage and current. Moreover, grid synchronization works properly by sensing the grid voltage, which is then used as a reference voltage to connect the inverter to the grid successfully. The grid sees the inverter as a resistive load with a unity power factor. The total harmonic distortion (THD) of the grid current is 4.87% for the THD grid voltage of 2.07%. 2020-10-30T00:00:00+07:00 Copyright (c)