The role of rhodium sulfate on the bond angles of triglyceride molecules and their effect on the combustion characteristics of crude jatropha oil droplets

Nanlohy, Hendry Y.; Wardana, I.N.G.; Yamaguchi, Masaki; Ueda, Toshihisa

doi:10.1016/j.fuel.2020.118373

Cited by 20 publications

(22 citation statements)

References 57 publications

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“…On the other hand, these results indicate that CJO droplets with and without a catalyst have a faster combustion rate than DEX, and this is because the addition of a rhodium trisulfate catalyst makes the mass of the fuel increase so that the distance between the fuel molecules gets closer, thus accelerating the interaction between the fuel molecules causing an effective collision have the potential to occur. This analysis is consistent with previous studies, which stated that the flame height was inversely related to the molecular diffusivity [24].…”

Section: Resultssupporting

confidence: 93%

Comparative Studies on Combustion Characteristics of Blended Crude Jatropha Oil with Magnetic Liquid Catalyst and DEX under Normal Gravity Condition

Nanlohy

2021

JMEST

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A comparative study on the combustion characteristics of a single droplet fueled by DEX, crude jatropha oil (CJO), and a mixture of CJO with a magnetic liquid catalyst of rhodium trisulfate has been carried out under normal gravity conditions. The high viscosity of crude jatropha oil makes it difficult to burn under normal conditions (room temperature and atmospheric pressure), therefore the addition of a magnetic liquid catalyst rhodium trisulfate is needed to improve the properties of crude jatropha oil. As a catalyst, rhodium trisulfate has the potential to improve combustion performance while improving the physical properties of crude jatropha oil as an alternative fuel for the better. Furthermore, performance tests were also carried out with DEX fuel with a cetane number (CNs) 53. The results showed that compared to DEX, it was seen that the liquid metal catalyst rhodium trisulfate succeeded in making crude jatropha oil more charged so that the combustion process was better. This is evidenced by a significant change in the dimensions of the flame and an increase in the combustion temperature. Moreover, it is also seen that the burning rate increases and the ignition delay become faster.

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Section: Resultssupporting

confidence: 93%

Comparative Studies on Combustion Characteristics of Blended Crude Jatropha Oil with Magnetic Liquid Catalyst and DEX under Normal Gravity Condition

Nanlohy

2021

JMEST

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“…Moreover, this indicates that at the correct ignition timing, the air-fuel ratio is achieved, and this is triggered by the increased reactivity of the many hydrogen atoms in bioethanol. This analysis is very possible and is by previous research which states that atomic reactivity has the potential to increase the reaction speed of the fuel molecules to increase the energy contained in the fuel [23], [24]. On the other hand, from Figure 4 it can be seen the impact of changing the ignition timing on the amount of energy consumed (EC).…”

Section: Resultsmentioning

confidence: 82%

Gasohol Engine Performance with Various Ignition Timing

Nanlohy

Arief

Riupassa

et al. 2022

JMEST

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Experimental research has been conducted on the effect of ignition timings on the characteristics and performance of gasohol engines such as power, torque, specific fuel consumption, and thermal efficiency. The fuel used in this research is pure gasoline and a mixture of 50% bioethanol (BE50). The results show that the ignition timing that gives the maximum effect occurs at the top and bottom dead points of 9 degrees for gasoline and 12 degrees for BE50 fuel. Furthermore, the maximum power is obtained at 6,500 rpm, and at an ignition time of 12 degrees BTDC the maximum power generated is 4.63 hp, while for an ignition time of 9 degrees BTDC the power generated is 3.38 hp which occurs at 6500 rpm. These results indicate that there is an increase in power of 6.4%. Moreover, the results also show that for optimal gasoline conditions, the amount of energy consumed at an engine speed of 7000 rpm is around 15705.78 kcal/hour, and for BE-50 it is around 12582.03 kcal/hour, where there is a reduction of about 25.44 %. However, in general, it can be seen that during optimal ignition, there is a saving in fuel consumption in the gasoline-BE50 mixture, while at the same time producing a fairly large thermal efficiency. These results indicate that BE50 has the potential to be used as an alternative fuel in small gasoline engines.

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“…Furthermore, the role of hydroxyl groups in n-butane and n-pentane has been shown to increase the reactivity of fuel molecules, accelerating the reaction rate and flame propagation in the combustion chamber, in which due to the bent of the carbon chain [ 35 ]. Unfortunately, from the background above, nothing has been revealed about the effect of using a mixture of bioethanol and isooctane on a stationary SI engine.…”

Section: Introductionmentioning

confidence: 99%

Characteristics of SI engine fueled with BE50-Isooctane blends with different ignition timings

Suyatno

Riupassa

Marianingsih

et al. 2023

Heliyon

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The role of rhodium sulfate on the bond angles of triglyceride molecules and their effect on the combustion characteristics of crude jatropha oil droplets

Cited by 20 publications

References 57 publications

Comparative Studies on Combustion Characteristics of Blended Crude Jatropha Oil with Magnetic Liquid Catalyst and DEX under Normal Gravity Condition

Comparative Studies on Combustion Characteristics of Blended Crude Jatropha Oil with Magnetic Liquid Catalyst and DEX under Normal Gravity Condition

Gasohol Engine Performance with Various Ignition Timing

Characteristics of SI engine fueled with BE50-Isooctane blends with different ignition timings

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