Performance and Emission Characteristic of Miniature Turbojet Engine Fed Jet a-1/Alcohol Blend

Gawron, Bartosz; Białecki, Tomasz; Dzięgielewski, Wojciech; Kaźmierczak, Urszula

doi:10.5604/12314005.1213540

Cited by 12 publications

(11 citation statements)

References 5 publications

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“…The average value of each parameter was supplemented with a maximum and minimum value, which correspond to the extreme values from single engine runs [21]. Uncertainty of measurement equipment was presented in [28] (engine sensors) and [13] (gas analyzer sensors).…”

Section: Uncertainty Analysismentioning

confidence: 99%

Combustion and Emissions Characteristics of the Turbine Engine Fueled with HEFA Blends from Different Feedstocks

et al. 2020

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In the next decade, due to the desire for significant reduction in the carbon footprint left by the aviation sector and the development of a sustainable alternatives to petroleum, fuel from renewable sources will play an increasing role as a propellant for turbine aircraft engines. Currently, apart from five types of jet fuel containing synthesized hydrocarbons that are certified by the ASTM D7566 standard, there is yet another synthetic blending component that is at the stage of testing and certification. Hydroprocessed esters and fatty acids enable the production of a synthetic component for jet fuel from any form of native fat or oil. Used feedstock affects the final synthetic blending component composition and consequently the properties of the blend for jet fuel and, as a result, the operation of turbine engines. A specialized laboratory test rig with a miniature turbojet engine was used for research, which is an interesting alternative to complex and expensive tests with full scale turbine engines. The results of this study revealed the differences in the parameters of engine performance and emission characteristics between tested fuels with synthetic blending components and neat jet fuel. The synthetic blending component was obtained from two different feedstock. Noticeable changes were obtained for fuel consumption, CO and NOx emissions. With the addition of the hydroprocessed esters and fatty acids (HEFA) component, the fuel consumption and CO emissions decrease. The opposite trend was observed for NOx emission. The tests presented in this article are a continuation of the authors’ research area related to alternative fuels for aviation.

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Section: Uncertainty Analysismentioning

confidence: 99%

Combustion and Emissions Characteristics of the Turbine Engine Fueled with HEFA Blends from Different Feedstocks

et al. 2020

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“…The engine is the main component of a MiniJETRig, constructed in the Air Force Institute of Technology (ITWL). It is used in development and research works, mainly in tests of alternative fuels for aviation (Gawron et al , 2016; Gawron et al , 2018; Gawron and Białecki, 2018; Janicka et al , 2017), in other non-aeronautical applications (Dzięgielewski et al , 2015) and in other related projects (Janicka et al , 2018; Gawron et al , 2017; Białecki et al , 2018).…”

Section: Methodsmentioning

confidence: 99%

“…In the literature on aviation, there are numerous publications (Bergthorson and Thomson, 2015; Buffi et al , 2017; Chiong et al , 2018; Gawron et al , 2016; Gawron et al , 2018; Gawron and Białecki, 2018; Janicka et al , 2018; Lobo et al , 2012; Yu et al , 2017) on the combustion products emitted from the gas turbine engine. Such works are on emissions research of the exhaust components, i.e.…”

Section: Introductionmentioning

confidence: 99%

Exhaust toxicity evaluation in a gas turbine engine fueled by aviation fuel containing synthesized hydrocarbons

Gawron

Białecki

Janicka

et al. 2020

AEAT

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Purpose The purpose of this paper is to examine the toxicological impacts of exhaust generated during the combustion process of aviation fuel containing synthesized hydrocarbons. Design/methodology/approach Tests on aircraft turbine engines in full scale are complex and expensive. Therefore, a miniature turbojet engine was used in this paper as a source of exhaust gases. Toxicity was tested using innovative BAT–CELL Bio–Ambient Cell method, which consists of determination of real toxic impact of the exhaust gases on the human lung A549 and mouse L929 cells. The research was of a comparative nature. The engine was powered by a conventional jet fuel and a blend of conventional jet fuel with synthesized hydrocarbons. Findings The results show that the BAT–CELL method allows determination of the real exhaust toxicity during the combustion process in a turbine engine. The addition of a synthetic component to conventional jet fuel affected the reduction of toxicity of exhaust gases. It was confirmed for both tested cell lines. Originality/value In the literature related to the area of aviation, numerous publications in the field of testing the emission of exhaust gaseous components, particulates or volatile organic compounds can be found. However, there is a lack of research related to the evaluation of the real exhaust toxicity. In addition, it appears that the data given in aviation sector, mainly related to the emission levels of gaseous exhaust components (CO, Nox and HC) and particulate matters, might be insufficient. To fully describe the engine exhaust emissions, they should be supplemented with additional tests, i.e. in terms of toxicity.

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“…This is due to the lower calorific value for the fuel blend. The values of carbon monoxide (CO), carbon dioxide (CO2) and nitrogen oxides (NOx) emissions for fuel B10 blend were slightly lower, compared to the cases of using Jet A-1 fuel [9].…”

Section: Introductionmentioning

confidence: 92%

Effect of three component aviation-turbine fuel, biodiesel and n-butanol blends on performance efficiency and emissions of diesel engine

Mickevičius

Žunda

2021

20th International Scientific Conference Engineering for Rural Development Proceedings

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The article presents the test results of a single-cylinder, four-stroke diesel engine operating with jetbiodiesel fuel (J5) blend and its various blends J5Bu5, J5Bu10 and J5Bu15 with n-butanol (Bu). The three biofuel blends were prepared by mixing 95vol% J5/5vol% Bu, 90vol% J5/10% Bu and 85vol% J5/15vol% Bu, respectively. Load characteristics were taken at the engine speed of n = 2000 rpm, which corresponds to maximum torque mode. The air mass and fuel mass consumption along with CO, CO2, NO, NO2, NOX emissions and smoke of the exhaust were measured at engine load gradually increased up to maximum. Engine performance parameters and emissions of the exhaust were analysed and compared for various engine loads and fuel blends used in these experiments. Analysis of the obtained data shows that the engine operated most efficiently with a minimum brake specific fuel consumption, when running with the fuel J5 blend, at over the whole load range. Whereas at low engine mode, the highest fuel consumption was measured for biofuel J5Bu15 blend. The lowest emission of carbon oxide (CO) was measured, when operating with the highest concentration biofuel J5Bu15 blend, at full engine load. Maximum NOx emissions (1817 ppm) were measured for the maximum engine torque mode, when running with fuel J5 blend. The amount of NOx produced from combustion of blend J5Bu15 was 10.6% lower than that measured, when running at the same test conditions with fuel J5 blend. Minimum smoke opacity was also obtained, when fuelling it with fuel blend J5Bu15 at maximum engine torque mode.

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Performance and Emission Characteristic of Miniature Turbojet Engine Fed Jet a-1/Alcohol Blend

Cited by 12 publications

References 5 publications

Combustion and Emissions Characteristics of the Turbine Engine Fueled with HEFA Blends from Different Feedstocks

Combustion and Emissions Characteristics of the Turbine Engine Fueled with HEFA Blends from Different Feedstocks

Exhaust toxicity evaluation in a gas turbine engine fueled by aviation fuel containing synthesized hydrocarbons

Effect of three component aviation-turbine fuel, biodiesel and n-butanol blends on performance efficiency and emissions of diesel engine

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