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Siregar, Batu Mahadi
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Automotive Engineering Civil Engineering, Building, Construction & Architecture Electrical & Electronics Engineering Engineering Mechanical Engineering

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Characteristics Particleboard Made From Areca Fiber With Tapioca and Gambier Adhesive Nurdin, Hendri; Waskito, Waskito; Siregar, Batu Mahadi
Teknomekanik Vol. 4 No. 1 (2021): Regular Issue
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (398.497 KB) | DOI: 10.24036/teknomekanik.v4i1.9372

Abstract

The development of engineering materials has increased its use in various fields. The engineering material is particleboard made from areca fiber which is processed with technology. Areca fiber as waste has the potential to be used as an engineering material. The purpose of this study was to obtain the characteristics of the particleboard following the quality standards of JIS A 5908-2003 and SNI 03-2105-2006. The process of making particleboard by mixing particles of areca fiber and adhesive then compacting it. The adhesives used are tapioca and gambier. The concentration of areca fiber particles is 90%, 80%, 70%, and 60%. From this research, it was found that the characteristics of the particleboard using tapioca adhesive according to the quality standard and the gambier adhesive particle board did not meet the standard quality. This particleboard can be used as a raw material for making interior furniture instead of wood.
The investigation of physical dan mechanical properties of Nipah-based particle board Nurdin, Hendri; Waskito, Waskito; Fauza, Anna Niska; Siregar, Batu Mahadi; Kenzhaliyev, Bagdaulet Kenzhaliyevich
Teknomekanik Vol. 6 No. 2 (2023): Regular Issue
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/teknomekanik.v6i2.25972

Abstract

The excessive use of wood as a raw material in furniture industries has raised environmental concerns that have attracted the attention of many individuals. Consequently, various innovations have been explored in developing alternative materials for the furniture industry. One promising resource that has the potential to be developed as a raw material for furniture applications is Nipah palm husk. Nipah palm husk is classified as an agricultural waste that is barely used within society and industries. Hence, in this study, Nipah palm husk will be utilized as the primary material to fabricate particle board by involving tapioca as an adhesive. This research aimed to investigate the effect of tapioca concentrations on water absorption, modulus elasticity, modulus of rupture, and screw-holding strength of the produced Nipah palm husk particleboard. The results of this study showed that the particle board produced with a 40% tapioca adhesive concentration exhibited the most favorable physical and mechanical properties with a water absorption rate of 25%, an elastic modulus of 21188.93 kg/cm2, a modulus of rupture of 55.53 kg/cm2, and a screw holding power of 7.53 kg. The findings indicated that Nipah-based particle board has the potential to be developed as an alternative for the furniture industry.
PENGEMBANGAN MULTIMEDIA PEMBELAJARAN BERBASIS AUGMENTED REALITY Rohendi, Dedi; Daryanto, Eka; Siregar, Batu Mahadi
Jurnal Insinyur Profesional Vol. 3 No. 2 (2023): Jurnal Insinyur Profesional Vol 3 No 1
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jip.v3i1.42488

Abstract

Many subjects in engineering are abstract, not only in theoritical concepts but also in practices. This causes difficulties for students in understanding the material. Especially if the availability of practical tools is limited. Therefore we need media that can help students learn abstract material to be more real amidst the limitations of existing practical tools. Multimedia is a technology that is used in various fields, also in the education field. Multimedia has advantages such as being able to simulate, sound, move, video, and others and can be used as a learning aid. Multimedia based on Augmented Reality (AR) is an alternative solution to solve the students problems in learning. The aims of this research is to develop multimedia based on Augmented Reality. This research method is ADDIE. The multimedia development process begins with analysis, design, development, limited implementation and evaluation. The result of this AR-based multimedia development process is that multimedia products have been declared feasible, both in terms of material and multimedia.
Characteristics of Calorific Value of Briquettes Made From Cymbopogon Citratus Waste As an Alternative Fuel Nurdin, Hendri; Wagino, Wagino; Sari, Delima Yanti; Siregar, Batu Mahadi
Teknomekanik Vol. 5 No. 1 (2022): Regular Issue
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (448.626 KB) | DOI: 10.24036/teknomekanik.v5i1.12572

Abstract

Product diversification through Cymbopogon citratus briquettes as an alternative fuel for the development of renewable energy. The waste from the Cymbopogon citratus production process is a potential source of renewable energy that can be used as briquettes. This is an alternative to reduce dependence on fuel oil energy which is the main need for ordinary people. The purpose of developing Cymbopogon citratus waste briquettes with various variances and the use of tapioca adhesive, in obtaining the characteristics of the calorific value of briquettes. The method of making briquettes by using a press and optimizing the composition of the appropriate mixture as an effort to get the calorific value. From this research, the calorific value of Cymbopogon citratus briquettes is 8230.65 kJ/kg at a percentage mixture of 90 : 10 and its density is 394.90 kg/m3. From the acquisition of these characteristic values, it can be recommended as an alternative fuel in an effort to develop renewable energy in the utilization of lemongrass waste.
Co-Authors Dedi Rohendi Delima Yanti Sari Eka Daryanto, Eka Fauza, Anna Niska Kenzhaliyev, Bagdaulet Kenzhaliyevich Nurdin Hendri Wagino Waskito Waskito, Waskito