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PENGARUH PENAMBAHAN ADJUSTER PADA KOMPOR BRIKET TERHADAP JARAK PEMBAKARAN DAN LAJU PERPINDAHAN PANAS KONDUKSI Haurissa, Jusuf; Riupassa, Helen; Nanlohy, Hendry; Suyatno, Suyatno
Jurnal Rekayasa Mesin Vol. 15 No. 1 (2024)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v15i1.1373

Abstract

The effective and efficient use of biomass briquettes is strongly influenced by the type of stove used and the way it is used. This study aims to design a briquette stove by adding an adjuster: the test fuel used honeycomb briquettes and forest fern charcoal. The heat transfer from burning honeycomb briquettes to a pot of water needs to be maintained so that the heat (temperature) remains constant during the combustion process. In the current use of briquettes, the distance between the briquette flame and the pot of water is unstable because the space is getting further away from the pool of cooking water. The combustion distance is getting farther because the bottom of the initial honeycomb briquettes burns out, causing the surface of the briquettes to decrease and move away from the surface of the water pot. Thus the heat given to the pool of water will reduce. The briquette stove needs to be added with an adjuster to overcome this problem. This adjuster serves to raise the honeycomb briquettes if the surface of the briquettes decreases. With the addition of an adjuster, it will be analyzed how much the heat transfer rate and the stability of the burning distance of the honeycomb briquettes will be. In this study, 2 test models will be used: a stove with an adjuster and a stove without an adjuster, using 14 holes in honeycomb briquettes made from forest ferns using starch (tapioca) adhesive. The distance between the surface of the briquettes and the pot of boiled water is 5 cm. The results showed that the briquette stove using an adjuster could maintain the stability of the combustion distance between the surface of the briquette and the pot of water being cooked with an average temperature t = 567.83 0C and conduction heat transfer q = 5285.699 Watt.
Optimization of glass fiber reinforced polymer composite using response surface methodology for application on train panels Yuni Hermawan; I Gusti Ketut Puja; Hendry Y. Nanlohy
Mechanical Engineering for Society and Industry Vol 5 No 2 (2025)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/mesi.13090

Abstract

Advancements in science and technology are creating challenges for conventional materials such as metals, often struggle to meet the demands of modern industry. In response to the issue, train industry has begun developing applications of Glass Fiber Reinforced Polymer (GFRP) composite for interior panels. Therefore, this research aimed to determine the impact of fiber volume fraction and arrangement direction on tensile as well as bending tests. This research also aimed to identify variations in composite manufacturing process parameters to achieve optimal tensile and bending strength values. The research methodology was an experimental procedure with data analysis using Statistics Software. During the analysis, the results showed that the fiber volume fraction of 30% with the fiber arrangement direction of 0° produced optimal tensile and bending strength values. Tensile and bending tests produced results of 100.82 kg/mm2 and 102.27 kg/mm2, respectively. A high fiber volume fraction led to optimal tensile and bending strength values because the fiber served as the main reinforcement. Additionally, direction of the fiber arrangement played a significant role, with 0° fiber orientation producing better results due to a more even fiber distribution compared to 90° direction. The results of this research could be applied to the wall panels in the railway industry.