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Journal : Journal BEARINGS: Borneo Mechanical Engineering and Science

Arang Kayu, Batok Kelapa, Kulit Durian Dan Kulit Pisang Sebagai Bahan Pengganti Resistor Film Karbon Wisutama, Remanda Arya; Nurseptiani, Syifa; Azizah, Athirah Nur; Subagiyo, Lambang; Nuryadin, Atin
Journal BEARINGS: Borneo Mechanical Engineering and Science Vol 1, No 1 (2022)
Publisher : Universitas Borneo Tarakan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (352.89 KB) | DOI: 10.35334/bearings.v1i1.3050

Abstract

Indonesia’s dependence on imported resistors must be addressed. Producing domestic resistors and using cheaper, more efficient materials is one way to reduce it. The purpose of this study was to determine the specific resistances of carbon film resistors produced from several natural materials. The carbon film resistors were made from 4 different charcoal materials: wood, coconut shells, banana peel, and durian peel charcoals. The fine natural charcoals were put into straws with different cross-sectional areas and lengths. The resistance was measured using a digital multimeter, and the specific resistance was subsequently calculated. The highest specific resistance was obtained by wood charcoal of 8.68x106Ωm, then followed by coconut shell charcoal, durian peel charcoal, and banana peel charcoal, which were 7.23x106Ωm, 4.91x106Ωm, and 4.37x106Ωm, respectively. Based on this research, wood, coconut shell, banana peel, and durian peel charcoals have the potential to be used as alternative materials to replace carbon film resistors.
Analysis of the Effectiveness Value of the Coconut Fiber (Cocos nucifera L) Absorption Coefficient as a Sound Dampener Nurjannah, Indra; Rahmawati, Eka Septia; Habibah, Habibah; Nuryadin, Atin; Subagiyo, Lambang; Haryanto, Zeni
Journal BEARINGS: Borneo Mechanical Engineering and Science Vol 3, No 1 (2024)
Publisher : Faculty of Engineering, Universitas Borneo Tarakan

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Abstract

In this modern era, noise has become an increasingly common and significant problem in everyday life, thus requiring the use of sound absorbers to address this noise issue. This research created a sound absorber using coconut husk waste through the impedance tube method. Sound absorbers can be made by utilizing readily available waste materials, such as coconut husk waste. The effectiveness value of the coconut fiber absorption coefficient was tested using the impedance tube. The research method employed was the impedance tube method, with variations ranging from level 1 to level 5 and frequencies of 200 Hz, 400 Hz, 600 Hz, and 800 Hz. The impedance tube lengths used in this study were 50 cm and 100 cm. The highest absorption result at a tube length of 50 cm was found at level 1 with a frequency of 200 Hz. At a tube length of 100 cm, the highest absorption value was observed at level 2 with a frequency of 600 Hz. Based on this research, it was concluded that coconut husk can minimize noise and serve as an effective sound absorber.
Co-Authors Abdul Hakim Achmad Muhtadin Agus Riyadi Ahmad Syafi’i Ahmad Zaki Dzulfikar Alphero Tanlianto Alya Puspita Zahra Anamta, Mega Hajraini Andi Anwar Anggara Duta Medika Anugrah Putri Nuraini Apriatin, Diana Astrid Alifkalaila Azizah, Athirah Nur Charlos Falentino Chelda Yuliana Dakhi, Grecellia Mei Magdalena Damayanti, Isniawana Damayanti, Puardmi Dersan, Irviomi Desi Az Zahra Putri Desy Yuliana Dalimunthe Dinurrohmah, Syayidah Efwinda, Shelly Eko Andrianto Erna Sari Eryawan Presma Yulianrifat Evanita Mutang Evanita Mutang Fadhilah, Khairunnisa Hayatul Falentino, Charlos Febryan, Mohamad Ezra Feby Zulhiyah Feby Zulhiyah Feby Zulhiyah Firda Yunita Kartikasari Fitri, Divani Rahma Fitri, Muhammad Fauzan Grace Novely Aswin Siallagan Greny Mispi Anisa Sari Greny Mispi Anisa Sari Greny Mispi Anisa Sari Greny Mispi Anisa Sari Greny Mispi Anisa Sari Habibah Habibah Hadi Santoso Herman Aldila Ippei Mineta Iyar Anjas Oktaba Joey-Nell T. Marzan Junus, M Laela Nisfi Syiami Laili Komariyah Laili Komariyah, Laili Lambang Subagiyo M Junus M. Ari Prayogo Medika, Anggara Duta Melliana Jiana Bahi Muhammad Fikri Erlangga Muhammad Ikhsan Bachrul Alam Muhammad Ikhsan Bachrul Alam Muhammad Sholeh MUHAMMAD SHOLEH Muhammad Sholeh Muhammad Sholeh Muliati, Muliati Mutang, Evanita Nika Eva Widiyanti Nun Nasih, Amin Nurjannah, Indra Nurlaili Nurseptiani, Syifa Nurul F. Sulaeman Nurul Fitriyah Sulaeman Nurul Fitriyah Sulaeman Nurul Fitriyah Sulaeman, Nurul Fitriyah Nurul Sulaeman Palapa, Kaleb Gideon Pasaribu, Dian Rachel Putri Sri Rahmawati Putri, Sevia Tasya Rahmadani, Agung Rahman Setiyawan Rahmawati, Eka Septia Rahmawati, Putri Sri Ratna Woro Susanti Regina Bilqis Wardani Regina Bilqis Wardani Remanda Arya Wisutama Remanda Arya Wisutama Remanda Arya Wisutama* Rika Afriani Salsabila, Zulfa Sari, Firda Yunita Kartika Shelly Efwinda Subagyio, Lambang Syayidah Dinurrohmah Syayidah Dinurrohmah Syayidah Dinurrohmah Syayidah Dinurrohmah Syayidah Syayidah Dinurrohmah Tan Fahrur Rozy Tandra Tan Fahrur Rozy Tandra Tandra, Tan, Fahrur Rozy Tanlianto, Alphero Tomohiro Takebayashi Ulul Hadiatul Fauki Vika Yulinda Antika Wandira, Ayu Ramadani Wati, Retno Rahma Widyatmike Gede Mulawarman Wisutama, Remanda Arya Zeni Haryanto Zulkarnaen Zulkarnaen