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All Journal Jurnal Pendidikan Ekonomi (JURKAMI) Kasuari: Physics Education Journal (KPEJ) Optika : Jurnal Pendidikan Fisika GOVERNANCE: Jurnal Ilmiah Kajian Politik Lokal dan Pembangunan Jurnal Riset & Teknologi Terapan Kemaritiman Science, Technology, and Communication Journal Jurnal Ilmu Pemerintahan
Fitri, Ade
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Humanities Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Physics Social Sciences Transportation

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Journal : Science, Technology, and Communication Journal

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Utilization of phase changing materials as air conditioning alternatives in eco-green systems Hikma, Nurfi; Fitri, Ade; Izzah, Ramy Fitrah; Syahputra, Romi Fadli; Zulkarnain, Zulkarnain
Science, Technology and Communication Journal Vol. 2 No. 3 (2022): SINTECHCOM Journal (June 2022)
Publisher : Lembaga Studi Pendidikan and Rekayasa Alam Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59190/stc.v2i3.5

Abstract

Prevention of global warming due to high energy consumption and greenhouse gases is a priority for local governments, especially in Pekanbaru City, Indonesia. The use of air conditioning has become a community habit of reducing the temperature of a hot room, but unexpected things can have a negative impact on the surrounding environment. Therefore, this paper provides a simple new idea by using a phase change material (PCM) in the form of an eco-green air cooler system (EGACY) application as a free and passive cooler. EGACY consists of salt hydrates, PCM boxes, iron pipes, fans, solar panels, and batteries as the main components and several other supporting components. The EGACY system works by absorbing cold air and stored by the PCM at night through pipes connected to the outside, then expelled during the day through indoor ceiling vents. The resulting temperature in the room can be controlled at a comfortable temperature from 25°C to 28°C. EGACY is believed to be able to provide the potential for environmentally friendly technology with renewable energy sources.
Determination of optical parameters on knee bending of the feet using fiber optic Fitri, Ade; Candra, Wahyu; Meyzia, Bunga
Science, Technology and Communication Journal Vol. 2 No. 1 (2021): SINTECHCOM Journal (October 2021)
Publisher : Lembaga Studi Pendidikan and Rekayasa Alam Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59190/stc.v2i1.203

Abstract

Fiber optics are the right transmission medium to monitor the movement of the human body, one of them is knee activity. Single-mode fiber (SMF) and fiber Bragg grating (FBG) as sensing sensors that can monitor damage to bad conditions of the human joint area so can prevent further damage. The purpose of this study was to design fiber optic-based belts due to macrobending with sinusoidal patterns, determine the relationship of knee benders with average power change of SMF and FBG, measure changes in power loss (L) fiber optics as a function of optical fiber diameter (d) and knee angle, and determine the optimum sensitivity (S) of SMF and FBG in detecting knee bending. The results showed that L of 0.0751 dB and S of 0.017442 dB are the largest values produced from the SMF belt with values d of 12 mm and knee angle of 180°. The values L of 2.0177 dB and S of 0.591382 dB are the largest values produced from FBG belts with values d of 8 mm and knee angle of 180°. The results of this study explain that FBG is more effective to use because it has a higher S value than SMF.
Co-Authors Alamsyah Andi Tenri Ampa Apit Fathurohman Arifuddin, Andi Mursid Nugraha Bancin, Sutomo Baratau, Irentya Anugra Candra, Wahyu Dwiyanti, Diva Syahirah Hikma, Nurfi Ibrahim, Monalisa Isra Djabbar Izzah, Ramy Fitrah Kistiono Lumbantoruan, Hendra Eliakim M. Uswah Pawara Mardiana Mardiana Meyzia, Bunga Muhammad Ilyas Thamrin Tahir Najib, Marhawati Naufal, Daffa Ahmad Rahmat Hidayat Romi Fadli Syahputra S, Sapri Siagian, Firman Veryvicasi Vernando Simatupang, Gusrawati, Sander V S Suardi Suardi Subur, Hikmayani Syadzali, Abdul Mujib Zulkarnain Zulkarnain