Effects of Eugenol and Cineol Compound on Diffusion Burning Rate Characteristics of Crude Coconut Oil Droplet

Riupassa, Helen; Suyatno, Suyatno; Nanlohy, Hendry Y.; Sanata, Andi; Trismawati, Trismawati; Subagyo, Rachmat; Adiwidodo, Satworo; Rizza, Muhammad Akhlis; Yamaguchi, Masaki; Tomidokoro, Takuya; Sarıkoç, Selçuk

doi:10.31603/ae.8150

Cited by 5 publications

(5 citation statements)

References 32 publications

(40 reference statements)

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“…Moreover, as the reactivity of molecules increase, thus viscosity decreases, allowing for easier heat absorption and combustion. Furthermore, this analysis concurs with previous studies from various perspectives [20] and it is substantiated by the increase in temperature observed during the burning stages (refer to Figure 7 and 8).…”

Section: Resultssupporting

confidence: 92%

Enhance the Heat and Flame Characteristics of Sago Briquettes With and Without Adjusters

Suyatno,

Riupassa

2023

RTR

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Experimental investigations were conducted to assess the impact of an adjuster on the heating efficiency and flame stability of sago waste briquettes. The adjuster was introduced to maintain a consistent burning distance, thereby enhancing the combustion heat of the fuel. Infrared thermometry was employed to monitor the temperature evolution within the briquette and the combustion load, represented by water in a pan. The findings demonstrate that adding an effective adjuster significantly improves the performance of both the briquettes and the stove, resulting in enhanced effectiveness and efficiency. This is evident from the observed increase in combustion temperature and faster boiling time of the water. The consistent burning distance ensures a stable and uniform heat supply to the briquettes, facilitating more efficient fuel utilization as all parts of the fuel can undergo complete combustion and transfer heat to the pan. Molecular analysis reveals that the stability of the burning distance weakens the Van der Waals bonds within the carbon chain, thereby increasing the reactivity of the fuel molecules. Consequently, the fuel exhibits improved heat absorption capability and becomes highly combustible.

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Section: Resultssupporting

confidence: 92%

Enhance the Heat and Flame Characteristics of Sago Briquettes With and Without Adjusters

Suyatno,

Riupassa

2023

RTR

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“…Furthermore, the flame mode changes sequentially into spinning due to a thermal wall interaction. This phenomenon follows previous research [27], which stated that this phenomenon is due to the flame stretching in the tangential and axial directions so that the flame is spun and resembles. Moreover, the other flame modes formed outside are flashbacks, and no ignition occurs when the flame moves toward extinction.…”

Section: Resultssupporting

confidence: 90%

Characterization of Biogas as an Alternative Fuel in Micro-Scale Combustion Technology

Sanata,

Sholahuddin,

Rosyadi

et al. 2023

IJIE

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This study observes the flame characteristics of the biogas in micro/meso-scale (MSC) combustion technology, namely in a cylindrical MSC. For comparison, the fuel and combustor variations were carried out with backward-facing step size (bfs) as the flame holder in the combustor.The bfs are varied by changing the combustor's length of the inlet diameter. However, the size of the outlet diameter of the combustor is always constant to obtain a continuous combustion reaction zone. Biogas/methane (CH4), butane gas (C4H10), and a mixture of biogas-butane are used as fuel, with air as the oxidizing agent. The results showed that the type of fuel, reactant flow velocity, and equivalent ratio that occurred in the fuel variation and the bfs variation of the cylindrical msc influenced the flame characterization. Stable flame forms in the stoichiometric to rich equivalent ratio area and the medium to high reactant velocity area. The result shows that the equivalent ratio (φ) is 1.23 –1.44, the flame stability limit at the combustor ratio of 0.7, and biogas fuel has low flame stability compared to butane and the biogas-butane mixture. Moreover, the flame can be stable on butane fuel in the equivalent ratio (φ) 0.85 –1.43 and (φ) 0.86 –1.19 for the biogas-butane fuel mixture. Furthermore, when the D1/D2 increases, the flame stability of biogas tends to be wider than when the combustor ratio is 0.7, where the equivalent ratio (φ) is 0.98 –1.42. The result also shows that the flame can be stable on butane fuel in the equivalent ratio (φ) 0.71 –1.43, and for the biogas-butane fuel mixture, the flame can be stable in the equivalent ratio (φ) 0.69 –1.32. However, the best characterization of biogas combustion is formed in the variation of biogas treatment by mixing butane gas (biogas-butane). One of the methods used is called with a wider flame stability limit area. More varied flame visualization variations with a more widely distributed flame mode map, flame, and combustor wall temperature. The result shows that the combustor wall temperature of butane is around 225-250 °C, higher than the characterization of biogas combustion around 150°C, where it's without mixing butane gas for the possible test ranges.

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“…In addition, these results also show that the use of electric trolleys in conditions with steep slopes requires a greater electric current to maintain the stability and performance of the machine. This analysis is in accordance with previous research on electric vehicle operations which is discussed from another point of view [19], [20]. The voltage spike on a steep slope can be interpreted as an attempt by the machine to overcome a greater challenge in moving the trolley.…”

Section: Inclination 5°supporting

confidence: 90%

Performance Analysis of the Electric Trolley of Oxygen Cylinders Based on the Road Slope

Oei,

Gultom,

Ranteallo

et al. 2023

RTR

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The demand for efficient distribution of oxygen cylinders at Abepura Regional General Hospital (RSUD Abepura) has been steadily increasing due to the growing needs of staff members and patients who expect high-quality service within the hospital premises. In response to this demand, this study aims to propose a transportation system that is not only automated but also time-saving, with the ultimate goal of enhancing medical services in a more efficient, eco-friendly, and safe manner. One of the main challenges faced in the distribution process is the hilly terrain surrounding RSUD Abepura. The presence of these hills makes it difficult to manually distribute the heavy 72 kg gas cylinders, which is the current method employed at the hospital. To overcome this challenge, this research suggests implementing an innovative solution—an electric trolley—that can effectively facilitate the distribution and flow of oxygen cylinders at RSUD Abepura. The findings of this study conclusively demonstrate that the electric trolley is not only a suitable but also a convenient solution for the operators and medical staff involved in the distribution process. By utilizing the electric trolley, they can distribute oxygen cylinders without facing any hindrances posed by the uphill roads, ultimately resulting in significantly improved time efficiency and service effectiveness at RSUD Abepura.

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Effects of Eugenol and Cineol Compound on Diffusion Burning Rate Characteristics of Crude Coconut Oil Droplet

Cited by 5 publications

References 32 publications

Enhance the Heat and Flame Characteristics of Sago Briquettes With and Without Adjusters

Enhance the Heat and Flame Characteristics of Sago Briquettes With and Without Adjusters

Characterization of Biogas as an Alternative Fuel in Micro-Scale Combustion Technology

Performance Analysis of the Electric Trolley of Oxygen Cylinders Based on the Road Slope

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