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All Journal Jurnal Locus Penelitian dan Pengabdian The Journal of Information Technology, Computer Science, and Electrical Engineering
Baringin Sibarani
Politeknik Negeri Medan
Aerospace Engineering Automotive Engineering Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Mathematics

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CONSTRUCTION AND PERFORMANCE TESTING OF AXIAL MOVABLE WIND TURBINE Rufinus Nainggolan; Berta Br. Ginting; Nobert Sitorus; Joko Sutrisno; Suadi; Baringin Sibarani
Journal of Information Technology, computer science and Electrical Engineering Vol. 2 No. 2 (2025): June-September 2025
Publisher : Yayasan Sinergi Multidimensi Kreatif

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61306/jitcse.v2i2.220

Abstract

In this article is conducted research to harness wind energy which is generated by a truck that is running on the public road and highway. To take advantage of wind energy of the moving truck is designed a axial movable wind turbine in accordance with the size of the current truck. The purpose of this research is to construct and testing the performance of the designed axial movable wind turbine which is based on the optimum blades size. Number of the blades are six pieces and diameter of the blades are 0.35 m. To test the wind turbine that have been assembled, it is used loads on the wind turbine, respectively, 8 watts and 25 watts. The wind turbine that will be tested is installed on a mini truck. Furthermore, the mini truck runs at speeds up to 80 km/h. This research has succeeded to design and testing a prototype of axial movable wind turbine and the designed wind turbine can resulted electrical energy about 3.5 watts with the load 25 watt bulb. The designed axial movable wind turbine can be installed in the truck by further improving some components of the resulted prototype of the axial movable wind turbine.
EFFICIENCY OPTIMIZATION OF A STEAM POWER PLANT OUTPUT 800 kW USING SHELL AND FIBER FUEL AT PALM OIL MILL PTPN IV AIR BATU Rufinus Nainggolan; Marlon Sibarani; Suadi; Positron Bangun; Baringin Sibarani; Joko Sutrisno
Journal of Information Technology, computer science and Electrical Engineering Vol. 2 No. 3 (2025): October 2025 - January 2026
Publisher : Yayasan Sinergi Multidimensi Kreatif

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61306/jitcse.v2i3.246

Abstract

At Palm oil mill PTPN IV Air Batu, steam boiler and steam turbine is a combination of steam power plant equipment to produce steam and electrical energy. This steam boiler is a type of water tube boiler TAKUMA N-600SA brand with specifications working pressure 22 Bar, Temperature 340OC. The steam produced by the boiler is used to drive a Dresser Rand Type 550W steam turbine for generating 800 kW of electrical power and for steam needs for the boiling process, sterilization of palm oil. In this study the author conducted an analysis of the performance of the boiler and steam turbine, also analyzed the fuel used as a source of heat energy for boiler operations, each are palm shells and fibers. Analysis of the fuel needs of a mixture of shells and fibers at Palm oil mill PTPN IV Air Batu, then for the composition of the three biomass components are shells and fibers with varying ratios: 75%: 25%; 50%: 50%, and 25%: 75%, then the calorific value of each is LHV = 14374.5 kJ / kg, LHV = 12411 kJ / kg, and LHV = 10447.5 kJ / kg. The results of the calculation of the respective fuel needs: 1.617 Ton / Hour, 1.872 Ton / hour, and 2.225 Ton / Hour. From the steam turbine specification data with an output power of 800 kW, the turbine inlet steam pressure is 20 Bar, temperature 340 OC, and steam capacity of 6 Ton/Hour and turbine outlet steam pressure of 3.5 Bar, then through performance analysis, the isentropic efficiency is obtained at 92.32%, and the overall efficiency of the steam power plant is 12.40%.
CFD-Based Aerodynamic Optimization of Vehicle-Mounted Axial Wind Turbine Blades Rufinus Nainggolan; Husin Ibrahim; Prisca Caesa Moneteringtyas; Suadi Suadi; Baringin Sibarani; Soni Hestukoro; Abdul Razak
Jurnal Locus Penelitian dan Pengabdian Vol. 5 No. 8 (2026): JURNAL LOCUS: Penelitian dan Pengabdian
Publisher : Riviera Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58344/locus.v5i8.6240

Abstract

The increasing demand for sustainable energy solutions has encouraged the development of renewable energy technologies that can be integrated into various applications, including transportation systems. Wind energy generated from vehicle-induced airflow represents an alternative energy source that remains underutilized due to complex aerodynamic characteristics and unstable flow conditions. This study aimed to optimize the aerodynamic performance of vehicle-mounted axial wind turbine blades by determining the most suitable angle of attack using Computational Fluid Dynamics (CFD) simulations. The research method involved numerical analysis using CFD software to evaluate the aerodynamic behavior of turbine blades under different angle-of-attack variations of 0°, 5°, 10°, 15°, and 20°. Performance evaluation was conducted based on the lift-to-drag ratio and velocity contour distribution to identify the optimal blade configuration. The results showed that the angle of attack significantly affected aerodynamic performance, with the 10° configuration producing the highest lift-to-drag ratio and the most favorable airflow characteristics. Higher angles of attack resulted in increased flow separation and aerodynamic losses, whereas lower angles produced insufficient lift generation. The optimized turbine design consisted of six blades with a rotor diameter of 0.35 m, demonstrating the potential application of vehicle-induced airflow energy harvesting systems. In conclusion, CFD-based optimization provided an effective approach for improving the performance of vehicle-mounted wind turbine blades and supported future development of renewable energy technologies for sustainable transportation applications.
Co-Authors Abdul Razak Berta Br. Ginting Hestukoro, Soni Ibrahim, Husin Joko Sutrisno Marlon Sibarani Nobert Sitorus Positron Bangun Prisca Caesa Moneteringtyas Rufinus Nainggolan dan Trahman - S. Suadi Suadi