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All Journal Jurnal Belantara Jurnal Teknik Mesin dan Mekatronika (Journal of Mechanical Engineering and Mechatronics) Jurnal Teknik Mesin Hexagon Jurnal Gear : Energi, Perancangan, Manufaktur & Material
Aldrin -
Universitas Teknologi Sumbawa
Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Transportation

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Analisis Kekuatan Pengelasan Gas Metal Arc Welding (GMAW) Material SS400 Menggunakan variasi Kawat Las dan Arus Listrik dengan Metode Uji Bending Nikmal Hairul; Aldrin Aldrin; Fadhli Dzil Ikram; Mietra Anggara
Jurnal GEAR (Energi, Perancangan, Manufaktur & Material) Vol 2 No 1 (2024): Edisi 3
Publisher : Program Studi Teknik Mesin Fakultas Rekayasa Sistem Universitas Teknologi Sumbawa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36761/gear.v2i1.3670

Abstract

Pengelasan adalah proses penyatuan dua buah logam menjadi suatu bentuk sambungan dengan menggunakan proses panas. Penelitian ini bertujuan untuk mengetahui berapa besar nilai kekuatan uji bending pada pengelasan gas metal arc welding (GMAW) menggunakan kawat las ER70S-3 dengan variasi arus listrik, yaitu 80A, 100A dan 120A. Metode pengelasan yang digunakan dalam penelitian ini adalah gas metal arc welding (GMAW), material yang digunakan adalah SS400 dengan ukuran panjan 150 mm, lebar 20 mm dan tebal 10 mm. jenis kampuh yang digunakan adalah kampuh V dengan kemeringan 60° sesuai standar AWS G1. 1:2000. Pengujian yang dilakukan adalah pengujian bending dengan metode Three Poin Bending. Spesimen uji bending berdasarkan standarisasi ASTM E32-02. Nilai kekuatan uji bending paling rendah adalah pada kuat arus 80A dengan nilai rata – rata 17,3 kN dan nilai tegangan bending sebesar 1.946,25 N/mm². Nilai rata – rata kekuatan uji bending pada kuat arus 100A yaitu 18,0 kN dan nilai tegangan bending sebesar 2.025 N/mm². untuk kuat arus 120 adalah yang terbesar dengan nilai rata – rata 19,8 kN dan nilai tegangan bending sebesar 2.227,5 N/mm².
Pengaruh Kecepatan Udara Dan Kapasitas Pengeringan Pada Mesin Pengering Kerupuk Ikan Tongkol Iksan Wira Yuda; Aldrin Aldrin; Mietra Anggara; Amri Hidayat
Jurnal GEAR (Energi, Perancangan, Manufaktur & Material) Vol 2 No 1 (2024): Edisi 3
Publisher : Program Studi Teknik Mesin Fakultas Rekayasa Sistem Universitas Teknologi Sumbawa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36761/gear.v2i1.3674

Abstract

Penelitian tentang pengaruh kecepatan udara pengeringan kerupuk sudah pernah dilakukan oleh Siregar, M. S., Anggara, M., Aldrin, A., & Hidayat, A. (2023) yang dimana kecepatan udara mempengaruhi nilai dari laju pengeringan, nilai kadar air dan nilai efisiensi pengeringan, semakin tinggi kecepatan udara maka laju pengeringan, nilai kadar air dan nilai efisiensi pengeringan semakin besar dan efisien. Sementara penelitian tentang uji kapasitas mesin pengering kerupuk ikan tongkol belum pernah dilakukan untuk mengetahui kapasitas mesin pengering yang sesuai dengan ukuran mesin yaitu dengan dimensi panjang 40 cm, lebar 40 cm dan tinggi 85 cm. Tujuan penelitian ini untuk mengetahui pengaruh kecepatan udara dan kapasitas pengeringan terhadap laju pengeringan, kadar air dan efesiensi pengeringan pada mesin pengering kerupuk ikan tongkol. Penelitian ini menggunakan metode eksperimen pengeringan menggunakan mesin pengering kerupuk ikan tongkol dengan pengujian kecepatan udara dan kapasitas pengeringan. Dari hasil pengujian mendapatkan laju pengeringan terbaik diantara keduanya berada pada kecepatan 2,5 m/s kapasitas 100%. kadar air terbaik berada pada kecepatan 2 m/s dengan kapasitas 50% dan kapasitas 75% dan pada kecepatan 2,5 m/s dengan kapasitas 50% dan kapasitas 75% (Sesuai standar kadar air kerupuk 12%, SNI 0272:1991) serta efisiensi pengeringan terbaik diantara keduanya berada pada kecepatan 2,5 m/s kapasitas 100%.
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.
EMISSION ANALYSIS OF LAMTORO WOOD PELLETS COMBINE PLASTIC AND SODIUM CARBONATE Abdul Azis; Aldrin; Amri Hidayat
Jurnal Belantara Vol 9 No 1 (2026)
Publisher : Forestry Study Program University Of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbl.v9i1.1150

Abstract

Leucaena leucocephala, commonly known as lamtoro, is an invasive species that proliferates in tropical regions, including Sumbawa Island, and poses a threat to local biodiversity. Nevertheless, the abundant biomass of this plant presents an opportunity for its utilization as a renewable energy source in the form of wood pellets. This study aims to analyze the emission characteristics of lamtoro-based wood pellets substituted with plastic waste and sodium carbonate, as a strategy to enhance energy efficiency while reducing the environmental impact of solid waste. Three pellet formulations were tested: (1) 100% lamtoro as the control, (2) lamtoro mixed with 10% plastic waste, and (3) lamtoro mixed with 10% sodium carbonate. Combustion tests were conducted using a flue gas analyzer to measure the concentrations of carbon monoxide (CO), carbon dioxide (CO₂), nitrogen oxides (NOx), and particulate matter. The results indicate that the addition of plastic waste significantly increased the calorific value of the pellets but also led to higher emissions of CO and NOx. In contrast, the addition of sodium carbonate demonstrated a positive effect by reducing CO emissions by 35% and NOx by 28% compared to the control, as well as improving combustion efficiency through a catalytic mechanism in the decomposition of carbon compounds. These findings suggest that lamtoro wood pellets combined with sodium carbonate are a promising alternative bioenergy source that is environmentally friendly, supports the management of invasive species, and contributes to the diversification of renewable energy sources in rural and conservation areas.
ANALISIS VARIASI WAKTU PENGERINGAN DAN KECEPATAN UDARA PANAS TERHADAP KINERJA PADA MESIN PENGERING KERUPUK RUMPUT LAUT DENGAN SISTEM HYBRID Muhammad Yaz Rasyid; Mietra Anggara; Aldrin Aldrin; Fadhli Dzil Ikram
Jurnal GEAR (Energi, Perancangan, Manufaktur & Material) Vol 4 No 1 (2026): Edisi 7
Publisher : Program Studi Teknik Mesin Fakultas Rekayasa Sistem Universitas Teknologi Sumbawa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36761/gear.v4i1.4470

Abstract

Seaweed is a strategic commodity for aquaculture which has benefits as a food ingredient. The seaweed that is popular with the public is seaweed crackers. Technological developments have developed drying using the fluidization principle. The aim of the research was to determine variations in air speed and variations in drying time on drying rate, water content, drying efficiency. 180 minute test, the highest drying rate value was at 1 m/s, namely 2.03 g/minute, the lowest drying rate value was at 2 m/s, namely 2 g/minute, in the 360 ??minute test, the highest drying rate value occurred at 1 m/s. s, namely 1.10 g/minute, the lowest value of drying rate at 1.5 m/s, namely 1.08 g/minute. Drying 180 minutes with varying air speeds of 1 m/s, 1.5 m/s, 2 m/s, water content is 7.74%, 8.08%, 8.8%.  Drying 360 minutes with varying air speeds of 1 m/s, 1.5 m/s, 2 m/s, water content is 1.62%, 2.34%, 2.04%, all water content meets SNI. Drying 180 minutes with varying air speeds of 1 m/s, 1.5 m/s, 2 m/s, drying efficiency is 6.67%, 5.71%, 6.26%. 360 minutes drying with varying air speeds of 1 m/s, 1.5 m/s, 2 m/s, drying efficiency of 3.82%, 3.59%, 3.58%.  
Modifikasi Lapisan Tungku Bakar Dan Kecepatan Aliran Udara untuk Meningkatkan Kinerja Kompor Oli Bekas Aditya Syah; Muhamad Hidayat; Mietra Anggara; Aldrin Aldrin
Jurnal GEAR (Energi, Perancangan, Manufaktur & Material) Vol 4 No 2 (2026): Edisi 8
Publisher : Program Studi Teknik Mesin Fakultas Rekayasa Sistem Universitas Teknologi Sumbawa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36761/gear.v4i2.7212

Abstract

This research is motivated by the increasing price and scarcity of 3 kg LPG in Indonesia, particularly in Dompu Regency, West Nusa Tenggara, which burdens the low-income community. In addition, the abundant waste lubricating oil from motor vehicles poses an environmental hazard if not utilized properly. The objective of this study is to modify a prototype of a used oil stove to enhance its thermal performance evaluated through the Water Boiling Test (WBT) method. The methodology involves computer-aided mechanical design followed by adding a 6 mm fiberglass insulation layer around the combustion chamber and integrating an internal air flow control valve in the inlet pipe. The experiments were conducted using four operational variables combining air pressure levels and insulation states for boiling 3 liters of water. The results demonstrated that the maximum flame temperature reached 270°C under high air pressure combined with fiberglass insulation. The highest thermal efficiency achieved was 37% with a fuel consumption rate of 19.63 g/min, yielding an input power of 196.25 W and an output power of 71.74 W. The modification successfully elevated the stove's thermal performance, providing a cost-effective and eco-friendly energy alternative.
Co-Authors Abdul Azis Abdul Majid Rahman Aditya Syah Amri Hidayat Apandi Fadhli Dzhil Ikram Fadhli Dzil Ikram Hadi Sutrisna Haizan Iksan Wira Yuda Irfan Maulana Isman Raharjo Mhd Sunandar Siregar Mietra Anggara Muh Jefri Muhamad Hidayat Muhammad Yaz Rasyid Nikmal Hairul Rezaldi reza