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All Journal G-Tech : Jurnal Teknologi Terapan Journal of Social Research
Jaka Windarta
Universitas Diponegoro, Indonesia
Humanities Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Energy Engineering Social Sciences

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The Assessment of Electrical Energy Management through Case Study in Coal Handling System of Coal-Fired Power Plant Ari Hastanto; Berkah Fajar Tamtomo Kiono; Jaka Windarta
G-Tech: Jurnal Teknologi Terapan Vol 8 No 2 (2024): G-Tech, Vol. 8 No. 2 April 2024
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33379/gtech.v8i2.4112

Abstract

Coal Handling System (CHS) is the main system of Coal Fired Power Plant (CFPP), managing coal transportation from Vessel by Ship Unloader to coal yard through belt conveyor (BC) and Stacker/Reclaimer (S/R), then transported to Silo, known as forwarding process. CHS involves various large electric motors. The unwisdom of operating these motors would result in wasteful electrical energy consumption. To assess the energy management, United Nations Industrial Development Organization (UNIDO) provides Energy Management System (EnMS) tools based on ISO 50001 industrial sectors. This tool identifies that operational patterns and maintenance activities have a significant impact on the energy consumption. Technically using Integrated SKF Calculation, applying the scenario of direct replacement conveyor rollers aged more than 2 years by only 30%, saves 103,144.20 kWH per cycle, equal to IDR 102,807,951, rather than replacing rollers when broken only. Meanwhile, Lean Six Sigma concept in increasing cycle performance, could save a monthly 594,984 kWH, equal to IDR 593,044,189.
Kajian Tekno-Ekonomi Potensi Penghematan Energi Pencahayaan pada Gedung Pemerintah Menggunakan Retscreen Zulramadhanie; Jaka Windarta; Cahyadi Cahyadi
G-Tech: Jurnal Teknologi Terapan Vol 8 No 3 (2024): G-Tech, Vol. 8 No. 3 Juli 2024
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33379/gtech.v8i3.4446

Abstract

Salah satu upaya penghematan konsumsi energi pada bangunan gedung adalah penghematan energi pada sistem pencahayaan. Pada makalah ini, dilakukan kajian tekno-ekonomi potensi penghematan energi sistem pencahayaan pada sebuah gedung pemerintah dengan penggantian lampu flouresen ke LED. Studi kasus dilakukan pada gedung BRIN 620-621 menggunakan perangkat lunak RETScreen. Kajian dilakukan dengan melakukan analisa pengukuran dan verifikasi pada lampu tabung fluoresen dan LED untuk mendapatkan potensi penghematan dari pergantian lampu yang layak secara teknis dan ekonomi. Hasil studi ini menunjukkan potensi penghematan dan biaya energi lampu tabung LED sebesar 58,1 % dari energi lampu fluoresen serta evaluasi terkait tekno ekonomi seperti NPV dan IRR sebesar Rp. 64.480.066 dan 91 % indikator keekonomian lain seperti B-C rasio sebesar 5,2 dengan periode biaya pengembalian selama 2 Tahun dengan nilai evaluasi keekonomian dari pergantian lampu menandakan nilai-nilai tersebut layak secara finansial.
Analysis of the Influence of Air Conditioning System on the Assessment Rating of Green Buiding Certification "Greenship Existing Building" Bakhtiar Bakhtiar; Jaka Windarta; Eddy Prianto
Journal of Social Research Vol. 4 No. 11 (2025): Journal of Social Research
Publisher : International Journal Labs

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55324/josr.v4i10.2828

Abstract

This study aims to analyze the influence of the air conditioning system on achieving the Green Building certification rating for Greenship Existing Building PT Pamapersada Nusantara Head Office. The air conditioning system is a key aspect in assessing green building performance, particularly in the categories of energy efficiency, indoor air quality, and thermal comfort. The research method used was a descriptive quantitative approach with secondary data analysis in the form of energy audit documents, electricity consumption measurements, and technical data from the HVAC system installed in the building. The results show that the air conditioning system significantly contributes to points earned in the Energy Efficiency and Conservation (EEC) and Indoor Health and Comfort (IHC) categories. The implementation of an energy-efficient HVAC system, the use of high-efficiency equipment, and sound operational management can increase the efficiency of electrical energy consumption to the required limit. Indoor air quality is maintained according to standards, which positively impacts the comfort and productivity of building occupants. The results confirm that the air conditioning system is a strategic factor in achieving green building certification and serves as an important foundation for energy management and environmental sustainability efforts in existing buildings.
Co-Authors Ari Hastanto Bakhtiar Bakhtiar Berkah Fajar Tamtomo Kiono Cahyadi Cahyadi Eddy Prianto Zulramadhanie