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All Journal International Journal of Research in Vocational Studies (IJRVOCAS)
Isdaryanto Iskandar
Atma Jaya Catholic University
Aerospace Engineering Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences Other

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The Design and Fabrication of Waterwheels with System Floating Pontoon Fatahul Arifin; Hadi Sutanto; Isdaryanto Iskandar; Ronald Sukwadi
International Journal of Research in Vocational Studies (IJRVOCAS) Vol. 2 No. 3 (2022): IJRVOCAS - December
Publisher : Yayasan Ghalih Pelopor Pendidikan (Ghalih Foundation)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/ijrvocas.v2i3.143

Abstract

The use of fossil energy is currently starting to be slightly reduced by the government, and at this time the government is also starting to look at renewable energy as alternative energy, just as energy, solar, wind, biomass, and water. One of the utilization of water energy for the use of electrical energy is with a waterwheel. In this study, a pontoon-type water wheel was designed, where the ratio of rotation of the wheel to the rotation of the generator rotor was 1: 4. The dimensions of the water wheel designed and made were with a pontoon width of 1080 mm x 2000 mm x 15 mm, and the diameter of the water wheel is 1200 mm, which can be generated by a generator of 1 watt.
Utilizing an Oxyhydrogen Reactor to Produce Hydrogen Gas as a New Source of Energy from Textile Effluent Rusdianasari; Isdaryanto Iskandar; Prita Dewi Basuki
International Journal of Research in Vocational Studies (IJRVOCAS) Vol. 2 No. 3 (2022): IJRVOCAS - December
Publisher : Yayasan Ghalih Pelopor Pendidikan (Ghalih Foundation)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/ijrvocas.v2i3.149

Abstract

Textile wastewater can disrupt the environmental equilibrium. One type of textile waste processing is the production of hydrogen gas as a new and sustainable energy source. The water electrolysis method may be used to convert textile waste into hydrogen gas. In this study, hydrogen gas was produced from textile waste in two stages: electroplating waste treatment with an electrocoagulator and then processing textile waste into hydrogen gas using an oxyhydrogen reactor. Various catalysts, including NaOH, KOH, NaCl, and NaHCO3, were used in the process of converting textile waste into hydrogen gas, with a concentration of 0.5 M and an electrolysis period of 5 minutes. The addition of a catalyst is intended to identify the optimal concentration in the conversion of textile waste to hydrogen gas. The optimal KOH catalyst concentration for obtaining hydrogen gas was determined through study and analysis.
Syngas Generation in a Crossdraft Gasifier System Using a Rice Strew Filter Yohandri Bow; Isdaryanto Iskandar; Harjadi Gunawan
International Journal of Research in Vocational Studies (IJRVOCAS) Vol. 2 No. 3 (2022): IJRVOCAS - December
Publisher : Yayasan Ghalih Pelopor Pendidikan (Ghalih Foundation)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/ijrvocas.v2i3.154

Abstract

One solution to the fossil energy crisis is to use alternative energy, such as coal conversion. Coal may be utilized as an alternative energy source via a variety of methods, one of which being gasification. Gasification is a thermochemical process that converts a solid fuel into a combustible fuel in the presence of less oxygen than is necessary for stoichiometric combustion. One of the gasification methods involves utilizing a crossdraft gasifier system using rice straw as a syngas filter. The goal of this research is to determine the ideal temperature for producing syngas with the highest efficiency through the gasification process. According to study, the most ideal temperature for producing excellent quality syngas is acquired at 750°C with syngas concentration of CH4 1.99%, CO 7.97%, CO2 9.03%, H2 6.82%, O2 12.11%, 62.08% N2 and 16.56% efficiency reached at 650oC.
Co-Authors Fatahul Arifin Hadi Sutanto Harjadi Gunawan Prita Dewi Basuki Ronald Sukwadi Rusdianasari Yohandri Bow