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Haikal
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EFEK LAJU PEMANASAN (HEATING RATE) TERHADAP DISTRIBUSI TEMPERATUR DAN KINERJA MODUL THERMOELECTRIC GENERATOR SP1848 SA Nugroho Tri Atmoko; Haikal Haikal; Bagus Radiant Utomo; Fatimah Nur Hidayah; Emanuel Budi Raharjo
Jurnal Rekayasa Mesin Vol. 14 No. 2 (2023)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v14i2.1327

Abstract

Thermoelectric Generator (TEG) is an energy conversion technology that converts heat energy into electrical. There are several factors that affect the performance of TEG, one of which is the heat source. This research will investigate the use of waste heat by varying the heating rate on the performance of TEG in generating electricity and the temperature distribution profile through experimental studies on a laboratory scale. The heating plate is used to heat the hot surface of the TEG. There are three variations of the heating rate used, namely: Low (0.355°C/min), Middle (0.933 °C/min) and High (1.558 °C/min). Temperature measurements were carried out on the hot surface (Th), the cold surface (Tc) of the TEG module, and the ambient temperature (Ta) using Arduino temperature data logger. Meanwhile, to measure the electrical output in the form of voltage (V) generated by the TEG module, using the Arduino voltage data logger. The results show when the heating rate used is high (high heating rate) then the average electrical output of the TEG module produces a voltage of 5.34V. The heating rate on the hot surface of the TEG module will affect the difference in surface temperature and the performance of the TEG module in generating electricity.  
Enhancing Landslide Early Warning: Advances in Fiber Optic Sensor Sensitivity Fatimah Nur Hidayah; Haikal; Budi Nur C. E. B; Zuhdi Ismail
Multidisciplinary Innovations and Research in Applied Engineering Vol. 1 No. 2 (2024)
Publisher : Akademi Inovasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70935/yfrzp087

Abstract

Fiber optic sensors offer a high-performance alternative because they provide a low-cost solution, resistance to electromagnetic interference, multiplexing capabilities, and high integration. The performance of fiber optic sensors applies to measuring physical parameters such as pressure, bending, and temperature. This study aims to determine the optimal value of using optical fiber types in landslide early detection sensors. The method used is bending in the form of deflection on the optical fiber. The deflection values used are 0 mm - 15 mm, 0 mm - 20 mm, and 0 mm - 25 mm. The optical fiber is placed horizontally in the middle of the bending tool. This bending affects the deflection of the optical fiber, resulting in the attenuation of light in the optical fiber. The deflection phenomenon results in light attenuation in the optical fiber. The sensitivity level of a single-mode fiber optic sensor is higher than a multimode. It shows the greater linearity value in each deflection treatment. Single-mode optical fiber linearity data on deflection variations of 0 - 15 mm, 0 - 20 mm, and 0 - 25 mm, respectively, are 0.9833, 0.9871, and 0.9847. At the same time, the linearity data of multimode optical fiber is 0.8926, 0.9841, and 0.9687. Single-mode optical fiber is more sensitive than multimode optical fiber. It is caused by the core diameter of single-mode optical fiber, which is much smaller than that of multimode optical fiber. The difference in core diameter results in differences in light propagation in the optical fiber. The small diameter of the core has a low dispersion level so that more light intensity is reflected into the core. Light attenuation occurs in a single-mode optical fiber due to macro bending treatment. Meanwhile, the attenuation of light in Multimode fiber optics is due to the bending and dispersion of light. Therefore, a landslide early detection sensor design is more optimal by using a single-mode optical fiber.
Co-Authors Agung Supriyanto Agus Jamaldi Amarulloh Amarulloh Apri Wiyono Arif Hidayat Purwono Ario Sunar Baskoro ARIS SETIYAWAN Atmoko, Nugroho Tri Bagus Radiant Utomo Bagus Radiant Utomo Bambang Margono Budi Nur C. E. B Chamim, Moch. David Setiadhi Deni Andriyansyah Denis Marchant Dewi Ratna Nurhayati Edy Suryono Emanuel Budi Raharjo Emanuel Budi Raharjo Fatimah Nur Hidayah Isnarno Isnarno Isnarno Isnarno ISNARNO ISNARNO Isnarno Isnarno Johanes Wawan Joharwan Nur Cholis Petrus Heru Sudargo Rendi Yanwar Perdana Putra Surya Suseno Tri Widodo Besar Riyadi Xiaomeng Zhu Yoga Imam Malik Yudis Adhana Surya Zuhdi Ismail Zulkarnaen Ryeda Febriawan