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All Journal JURPIKAT (Jurnal Pengabdian Kepada Masyarakat) The Journal of Information Technology, Computer Science, and Electrical Engineering
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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%.
Penerapan Mesin Screw Press Gambir pada Kelompok Maju Tani di Desa Boangmanalu Kecamatan Salak Kabupaten Pakpak Bharat Jandri Fan HT Saragi; Sahat; Suadi; Nelson Manurung; Sondang Beatrix Siahaan; Angga Bahri Pratama
JURPIKAT Vol 7 No 1 (2026): 7.1 2026
Publisher : Politeknik Piksi Ganesha Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37339/jurpikat.v7i1.2770

Abstract

Pakpak Bharat Regency has great potential in gambier (Uncaria Gambir Roxb.) production, yet low productivity, substandard quality, and limited technology remain major challenges. This community engagement program aimed to improve production capacity and product quality through the implementation of a screw press machine and farmer skill enhancement. The method applied was Participatory Action Research (PAR) involving partners in planning, training, mentoring, and evaluation. Results showed a 15–20% production increase per 100 kg of leaves, reduced moisture content to ≤14%, and more uniform yellowish-brown product quality that meets market standards. Moreover, farmers’ knowledge and skills improved, leading to higher efficiency, increased income, and stronger business independence. This program has a significant impact on farmer empowerment and supports the sustainability of gambier enterprises in Pakpak Bharat.
Co-Authors Angga Bahri Pratama Baringin Sibarani Berta Br. Ginting Joko Sutrisno Marlon Sibarani Nelson Manurung, Nelson Nobert Sitorus Positron Bangun Rufinus Nainggolan dan Trahman - Sahat Saragi, Jandri Fan HT Sondang Beatrix Siahaan