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All Journal Rekayasa Mesin Jurnal Dimensi Turbo : Jurnal Program Studi Teknik Mesin Journal of Computer Science and Informatics Engineering (J-Cosine) Jurnal TAMBORA Jurnal Energi dan Teknologi Manufaktur Otopro Scientific Journal of Mechanical Engineering Kinematika Community Development Journal: Jurnal Pengabdian Masyarakat JURNAL FLYWHEEL International Journal Of Science, Technology & Management (IJSTM) International Journal of Community Service Hexagon JASTEN (Jurnal Aplikasi Sains Teknologi Nasional Jurnal J-PRES (Jurnal Pengabdian Rekayasa Sistem) Jurnal Gear : Energi, Perancangan, Manufaktur & Material PROTON : Jurnal Ilmu-Ilmu Teknik Mesin METAL
Mietra Anggara
Universitas Teknologi Sumbawa
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THE EFFECT OF VARIATIONS IN THE COMPOSITION OF CANDLENUT SHELLS AND BAGASSE ON THE CHARACTERISTICS OF BRIQUETTES Ayudhia Gina Mawaddha; Mietra Anggara
Mechanical, Energy and Material (METAL) Vol. 1 No. 2 (2023): Desember: Mechanical, Energy and Material (METAL)
Publisher : Universitas Katolik Widya Karya Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/metal.v1i2.33

Abstract

Currently, the world is facing a critical energy shortage. Every year, there is an increasing number of human activities that require fuel, especially oil-based fuels. Briquettes are one of the alternative energy sources that can be used to replace some of the uses of kerosene. The biomass used in this research consists of candlenut shells, sugarcane bagasse, and tapioca flour as a binder. The aim of this research is to determine the influence of briquette composition on the characteristic values of the briquettes. The tests conducted in this research include: calorific value, moisture content, ash content, volatile matter content, and fixed carbon content. The research results show that the highest calorific value in this study is found in sample 4, with a composition of 90% candlenut shells and 10% binder, with a calorific value of 5329 cal/g. For the composition of 30% sugarcane bagasse and 60% candlenut shells, the moisture content is 6.26%. The ash content is 1.23% for the composition of 30% sugarcane bagasse and 60% candlenut shells. The volatile matter content is 28.22% for the composition of 90% candlenut shells and 10% binder. Lastly, the fixed carbon content is 28.22% for the composition of 60% sugarcane bagasse and 30% candlenut shells.
ANALYSIS OF VARIATION IN HEAT CONDUCTING PIPE POSITION AND AIR VELOCITY ON DRYING RATE, MOISTURE CONTENT AND DRYING EFFICIENCY OF TAPIOCA CRACKERS Amriadi Amriadi; Mietra Anggara
Mechanical, Energy and Material (METAL) Vol. 1 No. 2 (2023): Desember: Mechanical, Energy and Material (METAL)
Publisher : Universitas Katolik Widya Karya Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/metal.v1i2.37

Abstract

One of the essential processes in the production of krupuk (crackers) is the drying process, commonly carried out using traditional sun-drying methods. Effective drying necessitates even heat distribution, which can be challenging to achieve with direct sun drying due to weather fluctuations. However, with technological advancements, natural drying methods have been improved to enhance drying efficiency. Moreover, the development of drying equipment has shifted from natural drying to forced drying using the principle of fluidization. Experimental testing of the heat pipe position and air velocity can be conducted to understand the heat One of the essential processes in the production of krupuk (crackers) is the drying process, commonly carried out using traditional sun-drying methods. Effective drying necessitates even heat distribution, which can be challenging to achieve with direct sun drying due to weather fluctuations. However, with technological advancements, natural drying methods have been improved to enhance drying efficiency. Moreover, the development of drying equipment has shifted from natural drying to forced drying using the principle of fluidization. Experimental testing of the heat pipe position and air velocity can be conducted to understand the heat distribution during the drying process. The objective of this research is to investigate the variation of heat pipe positions and air velocities' influence on the drying rate, moisture content, and drying efficiency of krupuk. The study involves three research variables: Independent Variables: a. Designing the heat pipe in a vertical position. b. Designing the heat pipe in a horizontal position. Air Velocity: a. Air velocity of 2 m/s. b. Air velocity of 1.5 m/s. c. Air velocity of 1 m/s. Based on the comparison of values from the two positions, it was found that the vertical heat pipe resulted in the best drying rate of 1.65 g/minute, while the horizontal heat pipe yielded 1.67 g/minute. Regarding moisture content, the vertical heat pipe had a value of 3.6%, while the horizontal pipe had 2.6%. For the best efficiency, the vertical heat pipe achieved 1.9%, and the horizontal pipe achieved 2%. It can be concluded that the drying rate and moisture reduction significantly affect the efficiency of the kerupuk drying machine. The higher the quantity of material dried, the higher the efficiency achieved with the same fuel.
PERANCANGAN KINCIR AIR PEMBANGKIT LISTRIK TENAGA MIKROHIDRO ALIRAN HEAD RENDAH: Studi Kasus Di Desa Manemeng Kecamatan Brang Ene Kabupaten Sumbawa Barat Haizan; Mietra Anggara; Fadhli Dzhil Ikram; Aldrin
Hexagon Vol 6 No 2 (2025): Vol. 6 No. 2 (2025): HEXAGON - Edisi 12
Publisher : Fakultas Teknologi Lingkungan dan Mineral - Universitas Teknologi Sumbawa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36761/hexagon.v6i2.5072

Abstract

This study designs a water wheel for micro-hydropower generation with low-head flow of the Undershot type. The water wheel is designed with a head height of 0.5 meters, a diameter of 1.10 meters, and 16 blades, producing a planned power of 6.536 kW. The peripheral speed of the wheel is 0.28 meters per second with a rotation speed of 4.05 rpm. The blade receives water at a rate of 1.4 m³/second, generating a fluid force of 840 Newtons. The angular velocity of the wheel is 0.424 rad/second, and the shaft power is 5.556 kW with a shaft diameter of 0.10 meters. The static equivalent load is calculated to be 438.91 Newtons. This water wheel is expected to utilize slow but constant water flow to generate electricity, helping the rice field area in Manemeng village to maximize harvest yields and control pests.
EFFECT OF REGULATOR VALVE OPENING VARIATIONS AND AIR SPEED ON DRYING RATE, FUEL CONSUMPTION, DRYING EFFICIENCY IN ANCHIE DRYING MACHINE Rais Rais; Mietra Anggara
Mechanical, Energy and Material (METAL) Vol. 1 No. 1 (2023): Juni: Mechanical, Energy and Material (METAL)
Publisher : Universitas Katolik Widya Karya Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/metal.v1i1.42

Abstract

Indonesia is a maritime country, rich in marine resources and marine biodiversity and non-biological diversity which spreads over 3,351 million km2 of sea area and 2,936 km2 of water area of the exclusive economic zone and continental shelf (BPS, 2018). The natural conditions of this vast sea are utilized by all people in Indonesia, including the people of Labuhan Bajo Village, Sumbawa. Anchovy (Stolephorus sp.) is one of the marine commodities developed as a superior economic commodity. Many efforts have been made by anchovy fishermen and collectors in an effort to maintain and develop anchovy processing, one of which is the drying process. This study aims to determine the effect of lpg gas regulator valve opening and air velocity on moisture content, fuel consumption, efficiency and drying rate of anchovy drying machine. The variables used are the variation of the regulator valve opening and the air exhaled by the fan from outside with speeds of 1.5 m/s, 2 m/s and 2.5 m/s. The results obtained in this study were that the highest drying rate was produced by the valve opening with a duration of 120 minutes with a drying rate of 0.630 g/min at an air speed of 2.5 m/s. Testing the water content by looking at the results of the anchovy samples and the results of the highest amount of water content, namely in the variation of valve opening 1 with a water content value of 19.12% at an inlet air speed of 2.5 m/s with a duration of drying time of 120 minutes. The highest efficiency value at 3/4 valve opening with a speed of 2 m/s with an inlet channel of 1 cm is 84.66%. Fuel consumption from the results of anchovy drying test with a temperature of 70 ℃ where the drying time is the fastest in accordance with the SNI quality standards for anchovy water content, namely opening the regulator valve 3/4 for 120 minutes, using 0.95 kg of gas.
Co-Authors A. Masniawati Abdul Malik Karim Ahmad Hidayat Ahmad Yamin Ajie Prana Mesa Aldrin Aldrin - Ali Topan, Paris Amri Hidayat Amri Hidayat Amriadi Amriadi Andi Dewi Rizka Ainulia Makerra Apandi Ardiansyah Ardila Tri Yuli Yanti Asia Arifin Ayudhia Gina Mawaddha Azrial Abizard Bahtiar, Syamsul Bernadus Crisanto Putra Mbulu Denny Widhiyanuriyawan Dery Sofya, Noura Dewa Putu Sukerta Yasa Dwi Ratna Sari Dzil Ikram, Fadhli Ekastini Ekastini Eva Johannes Fadhil Zil Ikram Fadhli Dzhil Ikram Fadhli Dzil Ikram Fadhli Dzil Ikram Fadhli Dzril Ikram Faris Zaiem Alhakiem Farisan Robbani Febrian, Wira Firda Utami, Silvia Fitriani Haizan Hamratul Aisyah Dhanasmara Hamzah Naufal, Muhammad Hermanto, Koko Hidayat, Amri Hidayat, Muhamad Iksan Wira Yuda Imam Munandar Irfan Maulana Irlan Jibril, Aburijal Juniansyah, Kallista La Ode Muhammad Syarif M. Faisal M. Syawqi Samanhudi Mahendry, Syahrul Manguntungi, Baso Mbulu, Bernardus Crisanto Putra Mega Nur Sasongko Mhd Sunandar Siregar MMSI Irfan ,S. Kom Mohamedalmogtaba Abdelrahman Muh Jefri Muh. Chaerul Anwar Muhammad Al Fatih Muhammad Ilham S Muhammad Rizaldi Trias Jaya Putra Nurdin Muhammad Yaz Rasyid Mukhtar Hadi Murdiyanto, Danang Naif Fuhaid Naif Fuhaid Nikmal Hairul Nur Hilal A. Syahrir Nurmuliayanti Muis Nuryadi, Halid Pupung Pupung Pupung Rais Rais Riana Anggraeny Ridwan Rini Nirmala Hidayah Rita Desiasni Rizki Anjar Kusuma Robbani, Farisan Saputra, Widi Sarwana, Wirya Sopyan Ali Rohman Syamsul Arifin Toni Dwi Putra Toni Dwi Putra Ulfaturrahmi, Ulfaturrahmi Vivin Nila Rakhmatullah Wahyullah Wahyullah Widiasa, I Kadek Yuliadi Yuliadi Yusran Yusran Zainal Zaky Abdul Aziz