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All Journal TANJAK : Jurnal Pengabdian Kepada Masyarakat The Journal of Information Technology, Computer Science, and Electrical Engineering
Marlon Sibarani
Politeknik Negeri Medan
Agriculture, Biological Sciences & Forestry Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Electrical & Electronics Engineering

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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%.
Pelatihan Pengukuran Arus dan Tegangan Listrik di SMP Kristen Kalam Kudus 1 Medan Marlon Sibarani; Dohar Sinabutar
TANJAK : Jurnal Pengabdian Kepada Masyarakat Vol 6 No 2 (2025): TANJAK : Jurnal Pengabdian Kepada Masyarakat
Publisher : P3M Politeknik Negeri Bengkalis

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35314/z4hj5935

Abstract

Pelatihan pengukuran arus dan tegangan di SMP Kristen Kalam Kudus 1 Medan ini adalah praktikum dari alat ukur dan teknik pengukuran dari arus dan tegangan listrik  yang dipelajari di kelas 8 pada kurikulum tingkat SMP mengingat belum tersedianya ruang laboratorium fisika dan tidak adanya peralatan laboratorium fisika di sekolah tersebut sehingga para siswa hanya belajar teori tanpa adanya praktek fisika sehingga perlu diadakan pembuatan modul praktek pengukuran arus dan tegangan listrik agar sekolah ini memiliki peralatan laboratorium fisika khususnya di bidang listrik dan para siswa dapat mempraktekkan teori tentang fisika listrik sehingga para siswa tertarik dan mengetahui salah satu aplikasi dari pelajaran fisika khususnya tentang pengukuran arus dan tegangan listrik.
Co-Authors Baringin Sibarani Joko Sutrisno Positron Bangun Rufinus Nainggolan dan Trahman - sinabutar, dohar Suadi