Yohandri Bow

Internet of Things Based Temperature and pH Stabilization Control System in The Pome Biodigester Fermentation Process at PLTBg

The Government of Indonesia is striving to reduce dependence on fossil fuels by increasing the use of renewable energy (RE), with a target of achieving 23% by 2025. Biogas Power Plants (PLTBg) are one of the solutions that utilize palm oil mill effluent (POME) to produce biogas through anaerobic fermentation. The currently operating systems face […]

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Effective CO₂ Capture from Biomass Flue Gas Using a DEA-Promoted Potassium Carbonate Absorbent in a Packed Column Reactor

This research investigates the effectiveness of a Diethanolamine (DEA) promoted potassium carbonate (K₂CO₃) solution for capturing carbon dioxide (CO₂) from flue gas generated by the carbonization of coconut shells. The study aimed to evaluate the influence of absorption column packing height and absorbent flow rate on CO₂ removal efficiency. The absorption process was conducted in

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Increasing the Photochemical Performance of Dye-Sensitized Solar Cell: The Effect of Mixed Dye from Areca Catechu and Tectona Grandis Extract

Dye Sensitized-Solar Cells (DSSC) represent a solar cell technology belonging to the third generation, functioning on the principles of the photoelectrochemical concept. The utilization of teak leaves (Tectona Grandis) and areca nut (Areca Catechu) as an organic dye in DSSC is accountable for the absorption of solar radiation. The stimulation of electrons induced by light

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Synthesis and Characterization of Silicon Nanoparticles from Coal Fly Ash Using Ultrasonication as a Battery Anode

Fly ash, a byproduct of coal combustion, is rich in silica, alumina, and other minerals, making it a valuable resource for extracting high-purity silicon. The synthesis of silicon nanoparticles from coal fly ash involves several critical steps, including the extraction of silica (SiO2) via the sol-gel method, reduction of silica to silicon using the metallothermic

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Performance Test of the Molecularly Imprinted Polymer (MIP) Endosulfan Sensor Potentiometrically

Molecularly Imprinted Polymer (MIP) is a synthetic polymer with cavities that are specific for target molecules. Cavities are obtained as a result of template removal, where the function of these cavities is to recognize molecules with the same size, structure and physicochemical properties as them. The polymer produced from the MIP technique is applied to

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Implementation of the Internet of Things for Monitoring and Protecting Hydrogen Production in Dry Cell HHO Generators

In the last few decades, researchers have been conducting various studies in search of alternative energy sources to reduce dependence on fossil fuels and anticipate future energy scarcity. One such alternative energy is hydrogen, which can be obtained through various methods, including electrolysis of water. Hydrogen possesses the characteristics of being flammable, odorless, colorless, and

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The Comparison of Hydrogen Purity on Brown’s Gas Using Dry Cell Electrolyzer with/without Polyvinyl Alcohol (PVA) Separator Membrane

Global environmental issues that demand good air quality have encouraged various energy sources to develop environmentally friendly energy. Brown’s Gas is produced by using an electrolysis system to separate water into Hydrogen (H2) and Oxygen (O2) gas. The dry cell is an electrolyzer that is widely used for both small and large-scale hydrogen production systems.

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Study of Effect Changing the Blade Shape and Lift Angles on Horizontal Wind Turbine

The lack of energy commodities such as coal and petroleum makes the cost of these commodities soar. This event shows how much countries in the world are still very dependent on fossil fuels, and it is fitting that the transition to new renewable energy can be realized soon, low emission and environmentally friendly energy is

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Effect of Concentration of NaOH and H2SO4 Catalysts on Hydrogen Gas Production Efficiency

Indonesia has an ocean area of ​​5.8 million km2, water is the event of the decomposition of water compounds (H2O) into hydrogen gas (H2) and oxygen (O2) by using an electric current through water. In this study, the electrolysis of water at an electrolytic concentration containing NaCl can take place quickly with various catalysts of

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