Analysis of active cooling panels in a scramjet combustor considering the thermal cracking of hydrocarbon fuel

Sreekireddy, Pavani; Reddy, T. Kishen Kumar; Selvaraj, Prabhu; Reddy, V. Mahendra; Lee, Bok Jik

doi:10.1016/j.applthermaleng.2018.10.078

Cited by 20 publications

(2 citation statements)

References 25 publications

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“…Consequently, there has been widespread interest in utilizing endothermic fuels as coolants. 4 These fuels not only possess physical heat sink capabilities to absorb the waste heat of the aircraft but also provide a chemical heat sink through an endothermic reaction. Ultimately, this absorbed heat can be released in the combustion chamber, thereby enhancing energy utilization.…”

Section: Introductionmentioning

confidence: 99%

“…When the speed approaches Mach 8, the temperature in the engine combustion chamber can even reach up to 3000 °C, far exceeding the safety limits that current aircraft materials can endure. Consequently, there has been widespread interest in utilizing endothermic fuels as coolants . These fuels not only possess physical heat sink capabilities to absorb the waste heat of the aircraft but also provide a chemical heat sink through an endothermic reaction.…”

Section: Introductionmentioning

confidence: 99%

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Liquid Ammonia as a Potential High Heat Sink Fuel via Catalytic Decomposition over Ru/CeO₂–Al₂O₃ Coatings

Kong,

Liu,

Liu

et al. 2024

Energy Fuels

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Endothermic hydrocarbon fuel is the most utilized coolant in regenerative cooling technology for the high-speed aircraft, but it is challenged by the limited heat sink and severe coke deposition. In this study, we propose liquid ammonia as a promising carbon-free fuel with high heat sink for advanced vehicles or aircrafts. The chemical heat sink originates from the endothermic decomposition reaction of ammonia. A series of Ru/ CeO 2 −Al 2 O 3 catalytic coatings were fabricated on stainless-steel tubes using the washcoating method to catalyze the ammonia decomposition reaction and enhance chemical heat sink. The catalytic performance of these Ru/CeO 2 −Al 2 O 3 coatings for ammonia decomposition was evaluated using an electrically heated tubular reactor. With the Ru/CeO 2 −Al 2 O 3 coatings of 19 μm, ammonia conversion reaches up to 65%, and a remarkable high heat sink of 5.9 MJ/kg was achieved at 800 °C and 5 MPa. This value is ca. 68% higher than that of the typical hydrocarbon fuel JP-7. This work shows that liquid ammonia can serve as a novel generation high heat sink fuel for advanced engines and aircrafts.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Liquid Ammonia as a Potential High Heat Sink Fuel via Catalytic Decomposition over Ru/CeO₂–Al₂O₃ Coatings

Kong,

Liu,

Liu

et al. 2024

Energy Fuels

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Investigation of the Steam Injection Method Used to Reduce Emissions During Liquefied Petroleum Gas Combustion in an Atmospheric Burner

Kopyev,

Mukhina,

Sadkin

et al. 2024

Arab J Sci Eng

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Improvement of Heat Transfer Model Considering Heat Transfer Deterioration of Supercritical Fluid in Cooling Channel of Scramjet Propulsion System

Kim

Lee

2023

Int. J. Aeronaut. Space Sci.

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Analysis of active cooling panels in a scramjet combustor considering the thermal cracking of hydrocarbon fuel

Cited by 20 publications

References 25 publications

Liquid Ammonia as a Potential High Heat Sink Fuel via Catalytic Decomposition over Ru/CeO₂–Al₂O₃ Coatings

Liquid Ammonia as a Potential High Heat Sink Fuel via Catalytic Decomposition over Ru/CeO₂–Al₂O₃ Coatings

Investigation of the Steam Injection Method Used to Reduce Emissions During Liquefied Petroleum Gas Combustion in an Atmospheric Burner

Improvement of Heat Transfer Model Considering Heat Transfer Deterioration of Supercritical Fluid in Cooling Channel of Scramjet Propulsion System

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Analysis of active cooling panels in a scramjet combustor considering the thermal cracking of hydrocarbon fuel

Cited by 20 publications

References 25 publications

Liquid Ammonia as a Potential High Heat Sink Fuel via Catalytic Decomposition over Ru/CeO2–Al2O3 Coatings

Liquid Ammonia as a Potential High Heat Sink Fuel via Catalytic Decomposition over Ru/CeO2–Al2O3 Coatings

Investigation of the Steam Injection Method Used to Reduce Emissions During Liquefied Petroleum Gas Combustion in an Atmospheric Burner

Improvement of Heat Transfer Model Considering Heat Transfer Deterioration of Supercritical Fluid in Cooling Channel of Scramjet Propulsion System

Contact Info

Product

Resources

About

Liquid Ammonia as a Potential High Heat Sink Fuel via Catalytic Decomposition over Ru/CeO₂–Al₂O₃ Coatings

Liquid Ammonia as a Potential High Heat Sink Fuel via Catalytic Decomposition over Ru/CeO₂–Al₂O₃ Coatings