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All Journal G-Tech : Jurnal Teknologi Terapan
Cahyadi Cahyadi
Badan Riset dan Inovasi Nasional, Indonesia
Computer Science & IT Decision Sciences, Operations Research & Management Energy Engineering

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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.
Analisis Pengukuran dan Verifikasi Kinerja Penghematan Energi Motor Fan Dust Collector Menggunakan VFD dengan Perangkat Lunak RETScreen Expert Sarwo Turinno; Mochammad Facta; 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.v8i3.4511

Abstract

In the use of energy in industry, the lack of attention to energy use in meeting load requirements is still a common thing to find. One example is the operation of a dust collector fan motor in the steel industry with maximum capacity continuously at varying process loads, so energy efficiency measures need to be taken. The installation of a Variable Frequency Drive (VFD) to adjust the motor rotational speed according to load requirements is a solution to generate energy savings. This research will evaluate the energy performance of the VFD installation implementation by analyzing energy performance through measurement and verification (M&V) using RETScreen Expert software. From the analysis, the average daily energy consumption before the installation of VFDs was 24,686 kWh/day with energy consumption in one year of 5,924,658 kWh/year. After the installation of the VFD, the average daily energy consumption was 18,018 kWh/day with energy consumption in one year of 4,324,240 kWh/year. With the energy baseline equation, the energy savings generated in one year amounted to 954,747 kWh/year.
Karakteristik Pembakaran Campuran Batubara dan Tandan Kosong Kelapa Sawit (TKKS) Menggunakan Analisis Termogravimetri Deferensial Temperatur (TG-DTA) Wiwie Chaeruni; Hadiyanto Hadiyanto; 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.v8i3.4515

Abstract

The Indonesian government's commitment to reducing emissions and greenhouse gases by using biomass as an alternative fuel. This research aims to analyze and evaluate the combustion characteristics using TG-DTA (Thermo Gravimetric-Differential Thermal Analyzer) with coal, empty fruit bunches (EFB), and a mixture of EFB and coal. Sample testing was carried out with four variations of mixtures of EFB and coal, namely 10%, 20%, 30% and 40%, carried out in nitrogen and air media at a constant heating rate of 20 °C/minute and constant gas flow. 20 mL/minute and calculate the weight loss as the temperature increases to 900 °C. The combustion properties were analyzed by observing the combustion profile graph to obtain thermogravimetric (DTG) derivative data to obtain the initiation temperature, combustion temperature, maximum combustion temperature, combustion reactivity, and energy activity of EFB, and mixture.
Co-Authors H Hadiyanto Jaka Windarta Mochammad Facta Sarwo Turinno Wiwie Chaeruni Zulramadhanie