Liquid Jet Fuel Property Impacts on Combustion Performance

The results of parallel investigations to determine the impacts of jet fuel property variations on the performance, life, and pollutant emission characteristics of two different J79 engine combustor designs are compared. One of the designs embodies older technology features. The other design was developed more recently and embodies several advanced technology features to provide lower smoke levels and longer liner life capabilities. Both combustors were evaluated with the same set of thirteen fuels. The fuels were selected to provide fuel property ranges which span those of current jet fuels and of possible future broadened-specification jet fuels. The modern technology combustor was found to be considerably more tolerant of fuel property variations than the older technology design. The relative insensitivity of the modern technology design is primarily attributed to its lean-burning features, which result in low smoke and low flame radiation levels even with low hydrogen content fuels.

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Life-Cycle Energy Use and Greenhouse Gas Emissions Analysis for Bio-Liquid Jet Fuel from Open Pond-Based Micro-Algae under China Conditions

Energies ◽

10.3390/en6094897 ◽

2013 ◽

Vol 6 (9) ◽

pp. 4897-4923 ◽

Cited By ~ 18

Author(s):

Xunmin Ou ◽

Xiaoyu Yan ◽

Xu Zhang ◽

Xiliang Zhang

Keyword(s):

Life Cycle ◽

Greenhouse Gas Emissions ◽

Greenhouse Gas ◽

Energy Use ◽

Jet Fuel ◽

Liquid Jet ◽

Gas Emissions ◽

Open Pond

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Characterization of Synthetic Gas-to-Liquid Jet Fuel Blends and Properties Correlation with Hydrocarbon Groups

Qatar Foundation Annual Research Forum Proceedings ◽

10.5339/qfarf.2011.egp20 ◽

2011 ◽

pp. EGP20

Author(s):

Nimir Elbashir

Keyword(s):

Jet Fuel ◽

Liquid Jet ◽

Fuel Blends ◽

Synthetic Gas ◽

Gas To Liquid

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COMBUSTION, PERFORMANCE AND EXHAUST EMISSIONS OF THE DIESEL ENGINE OPERATING ON JET FUEL

Journal of KONES Powertrain and Transport ◽

10.5604/12314005.1137434 ◽

2015 ◽

Vol 19 (1) ◽

pp. 227-236 ◽

Cited By ~ 2

Author(s):

Gvidonas Labeckas ◽

Stasys Slavinskas ◽

Valentina Vilutienc

Keyword(s):

Diesel Engine ◽

Exhaust Emissions ◽

Jet Fuel ◽

Combustion Performance

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Characterization and Combustion Performance of Corn Oil-Based Biofuel Blends

Volume 6: Energy, Parts A and B ◽

10.1115/imece2012-89085 ◽

2012 ◽

Author(s):

Gautam Savant ◽

Jorge L. Alvarado ◽

Kaylan Annamalai ◽

Sergio Capareda

Keyword(s):

Corn Oil ◽

Energy Content ◽

Fatty Acid Content ◽

Jet Fuel ◽

Lower Amount ◽

Heat Output ◽

Nox Emissions ◽

Swirl Number ◽

Combustion Performance ◽

Oil Blends

A study has been undertaken to understand the effects of blending high-viscosity fresh and used corn oils with diesel and jet fuel mixed with butanol and ethanol on combustion emissions such as NOX and CO. Several corn oil-based blends were formulated, characterized, and compared to understand the effect of composition on viscosity, fuel stability and energy content. The formulated corn oil blends were combusted in a 30 kW modified combustion chamber to determine the corresponding NOx and CO emission levels. Used corn oil was made and characterized by quantifying its total polar material (TPM), iodine value, free fatty acid content, and peroxide value. The combustion experiments were conducted at a constant heat output of 19 kW to observe and study the effects of equivalence ratio, swirl number, and fuel composition on emissions. Used corn oil blends exhibited better combustion performance than fresh corn oil blends, due in part to the higher unsaturation levels in fresh corn oil. NOx emissions for used corn oil increased with swirl number. The combustion experiments also revealed that higher amount of diesel (lower amount of corn oil) results in higher NOx emissions. All corn oil-based blends showed a generally decreasing carbon monoxide (CO) trend at both swirl numbers at very lean conditions. The results also indicate that used corn oil can be combusted efficiently when mixed with diesel or jet fuel resulting in low NOx levels.

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Virtual Standard Slope and Bias Calibration Transfer of Partial Least Squares Jet Fuel Property Models to Multiple near Infrared Spectroscopy Instruments

Journal of Near Infrared Spectroscopy ◽

10.1255/jnirs.922 ◽

2011 ◽

Vol 19 (2) ◽

pp. 139-150 ◽

Cited By ~ 7

Author(s):

John B. Cooper ◽

Christopher M. Larkin ◽

Mohamed F. Abdelkader

Keyword(s):

Infrared Spectroscopy ◽

Least Squares ◽

Partial Least Squares ◽

Near Infrared Spectroscopy ◽

Near Infrared ◽

Jet Fuel ◽

Calibration Transfer ◽

Fuel Property ◽

Virtual Standard

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Influence of Blending Hydrogen and Biogas Into Natural Gas on the Combustion Performance of a Tankless Water Heater

Volume 8: Heat Transfer and Thermal Engineering ◽

10.1115/imece2019-10792 ◽

2019 ◽

Author(s):

Yan Zhao ◽

David Morales ◽

Vincent McDonell

Keyword(s):

Natural Gas ◽

Fossil Fuel ◽

Small Variation ◽

Positive Sign ◽

Fossil Fuel Combustion ◽

Water Heater ◽

Fuel Property ◽

Property Variation ◽

Combustion Performance ◽

Renewable Hydrogen

Abstract Utilizing renewable gases including biogas and renewable hydrogen instead of natural gas helps reduce greenhouse gases from fossil fuel combustion. Due to the fuel property variation, it is not practical to replace pipeline natural gas with these renewable fuels while still keeping the combustion devices at its designed operating condition. Therefore, this study mixes renewable hydrogen and simulated biogas into pipeline natural gas and investigates the combustion performance of a commercial tankless water heater. Up to around 10 vol% carbon dioxide and 20 vol% hydrogen are mixed into natural gas, then the mixtures are supplied to the water heater. Appliance performance such as operability, emissions (CO, UHC, NO, NO2, N2O, NH3) and efficiency are examined. The feasibility of injecting renewable gases into the existing natural gas infrastructure is evaluated from the perspective of the representative tankless water heater performance. The results show a positive sign for mixing hydrogen into pipeline natural gas, due to the small variation of the water heater emissions and an increase of the efficiency.

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