Open AccessPerformance and emissions of a microturbine and turbofan powered by alternative fuels
Author(s) -
Radosław Przysowa,
Bartosz Gawron,
Tomasz Białecki,
Anna Lçgowik,
Jerzy Merkisz,
Remigiusz Jasiński
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1024/1/012063
Subject(s) - turbofan , jet fuel , environmental science , thrust specific fuel consumption , greenhouse gas , jet engine , fuel efficiency , nox , carbon footprint , turbojet , automotive engineering , fossil fuel , process engineering , waste management , engineering , aerospace engineering , chemistry , combustion , ecology , organic chemistry , biology
BACKGROUND: Alternative fuels containing biocomponents produced in various technologies are introduced in aviation to reduce its carbon footprint but there is little data describing their impact on the performance and emissions of engines. OBJECTIVES: The purpose of the work is to compare the performance and gas emissions produced from two different jet engines: the GTM-140 microturbine and the full-size DGEN380 turbofan, powered by blends of Jet A-1 and one of two biocomponents: 1) ATJ and 2) HEFA produced from used cooking oil (UCO) in various concentrations. The acquired data will be used to develop an engine emissivity model to predict gas emissions. METHODS: Blends of the mineral fuel with synthetic components were prepared in various concentrations, and their physicochemical parameters were examined in the laboratory. Measurements of emissions from both engines were carried out in selected operating points using the Semtech DS gaseous analyzer and the EEPS spectrometer. RESULTS: The impact of tested blends on engine operating parameters is limited, and their use does not carry the risk of a significant decrease in aircraft performance or increase in fuel consumption. Increasing the content of biocomponents causes a noticeable increase in the emission of CO and some other gasses (HC and NOx), which should not, however, worsen the working conditions of the ground personnel. This implies that there are no contraindications against using tested blends for fuelling gas-turbine engines.