Claim Missing Document
Check
Articles

Found 2 Documents
Search
Journal : Journal of Engineering Science and Technology Management

Analysis of the Use of Generators and Rectifier Regulators as Additional Charging Systems for BLDC-Based Electric Bicycles Pratiwi, Nurul Dwi; Muhammad, Rahmadis; Fiatno, Aris
Journal of Engineering Science and Technology Management (JES-TM) Vol. 3 No. 2 (2023): September 2023
Publisher : Journal of Engineering Science and Technology Management

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jestm.v3i2.114

Abstract

The development of technology and mobility has encouraged humans to innovate and create environmentally friendly means of transportation and can reduce dependence on fuel oil which will eventually run out. Currently, transportation equipment using electrical energy is starting to appear as an alternative energy source, including electric bicycles. In this research, electric bicycles were produced equipped with generators and rectifiers to produce additional electrical energy. The generators utilizes the rotation of the front wheels to produce electrical energy which is then channeled through the rectifier and stored in the battery. This research aims to determine the benefits of using generators and rectifiers as additional charging systems for BLDC-based electric bicycles by conducting direct road test of electric bicycles. The result show that the use of a generator and rectifier can increase the distance traveled by up to 2 km. An electric bicycle with a capacity of 24V x 14 Ah can over a distance of 13 km without a generator and 15 km with a generator.
Facility Layout Redesign Using Systematic Layout Planning: A Case Study of a Vocational Motorcycle Workshop in Indonesia Yuanda, Rizwan; Fiatno, Aris; Gusman, Deddy; Tanjung, Lilatul Syifa; Musridho, R. Joko
Journal of Engineering Science and Technology Management (JES-TM) Vol. 4 No. 2 (2024): September 2024
Publisher : Journal of Engineering Science and Technology Management

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jestm.v4i2.370

Abstract

Efficient facility layout plays a critical role in improving operational performance, learning effectiveness, and occupational comfort in vocational education workshops. This study examines the redesign of a motorcycle engineering and business workshop at a public vocational high school in Indonesia using the Systematic Layout Planning (SLP) method. The existing layout exhibited inefficient material flow, excessive travel distances, and poor spatial organization, leading to fatigue among students and reduced instructional productivity. A qualitative descriptive case-study approach was employed, supported by direct observation, process mapping, and activity relationship analysis. The SLP procedure was applied through the development of Operation Process Charts, Activity Relationship Charts (ARC), Activity Relationship Diagrams (ARD), and block layout alternatives. The proposed layout demonstrates a substantial reduction in inter-facility travel distance and improved logical sequencing of learning activities. The findings confirm that SLP is an effective and adaptable approach for optimizing educational workshop layouts, contributing to improved operational efficiency and a safer, more conducive learning environment.