Modelling the performance and emission prediction of RB211 aero-gas turbine engine fuelled by Jatropha-based biofuel

Azami, Muhammad Hanafi and Noorazman, Zahid and Savill, Mark and Li, Yi-Guang and Hilmi, Mohd Radzi (2019) Modelling the performance and emission prediction of RB211 aero-gas turbine engine fuelled by Jatropha-based biofuel. In: 4th International Conference on Mechanical, Automotive and Aerospace Engineering (ICMAAE 2018), 19th-20th September 2018, Kuala Lumpur, Malaysia.

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Abstract

Fossil fuel is one of the world vital energy resources. The development of transportation technologies increases the demand for petroleum derivative globally. Fossil fuel consumption produces emissions, which potentially harm the environment and human health. Many mitigations have been implemented to address the two main crises; the energy scarcity and environmental calamity. This paper will discuss on one of the potential solutions by analyzing the performance and emission prediction of aero-gas turbine engine fuelled by Jatropha-based biofuel. Performance analysis was made based on the thrust and specific fuel consumptions at different blended ratio percentages for various flight conditions. The three- shaft high-bypass-ratio engine model, which is identical to the Rolls Royce RB211-524 was used to model in an in-house Cranfield’s University software, PYTHIA. PYTHIA is integrated with the TURBOMATCH performance evaluation programme by iterating the mass and energy balance for each engine component. The analysis is then continued to predict Nitrogen Oxides emission index (EINOx) at every flight conditions using an in-house Cranfield’s University computer tool, HEPHAESTUS. HEPHAESTUS is an emission prediction software by using Zel’Dovich equations (for NOx) and models the emission by implementing a partially-stirred reactor (PSR) model and perfectly stirred reactor (PSRS) models at different zones in the combustor. Validation showed that HEPHAESTUS is able to capture a reasonable prediction as compared to the International Civil Aviation Organization (ICAO) databank. The performance the biofuel has shown an improvement in engine performance at higher percentage blended ratio but also increase the nitrous oxide indices emission slightly.

Item Type:	Conference or Workshop Item (Plenary Papers)
Additional Information:	8177/72280
Uncontrolled Keywords:	Aircraft propulsion, Bypass ratio, Civil aviation, Forecasting, Fossil fuel deposits, Fossil fuels, Fuel consumption, Gas turbines, Nitrogen oxides, Petroleum transportation
Subjects:	Q Science > QC Physics T Technology > TJ Mechanical engineering and machinery
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Allied Health Sciences Kulliyyah of Allied Health Sciences > Department of Optometry and Visual Science Kulliyyah of Engineering Kulliyyah of Engineering > Department of Mechanical Engineering
Depositing User:	Dr Mohd Radzi Hilmi
Date Deposited:	17 May 2019 15:08
Last Modified:	31 May 2019 09:19
URI:	http://irep.iium.edu.my/id/eprint/72280

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