Cranfield University Official Website:
http://www.cranfield.ac.uk/
Department of Power and Propulsion Official Website: http://www.cranfield.ac.uk/SOE/Departments/PowerPropulsion/index.html
The Technoeconomic Environmental Risk Assessment (TERA) Framework
There is an increasing concern that current trends of consumption of natural resources cannot continue. It is imperative that major targeted investments are made into economical and reliable, environmentally friendly propulsion and power solutions. Many novel and promising concepts are being proposed. The selection of the best candidates to pursue for investment becomes a very difficult choice.
Technoeconomic Environmental Risk Assessment (TERA) is a concept which was conceived at Cranfield University and is essentially a useful multi-disciplinary optimisation tool that can quantify risks as well as compare and rank competing schemes on a formal and consistent basis. The technique is based on detailed and rigorous thermodynamic representations of powerplants integrated with other appropriate models. For example, the TERA tool for civil aviation integrates engine performance models with mechanical and aerodynamic design models, engine weight prediction models, aircraft design and performance models, powerplant production costs models, economics models and gaseous and noise emissions models.
The Department of Power and Propulsion at Cranfield University led (and is leading) the development of the TERA tool for many applications particularly in the fields of civil aviation propulsion, power generation, liquefied natural gas, oil and gas and marine propulsion.
Amongst other developments, the Cranfield University team is looking to further develop the engine preliminary weight estimation model for the TERA tool particularly with respect to novel cycles for civil aviation. The development of a suite of TERA preliminary engine weight estimation models is part of the research currently being undertaken by a PhD researcher (Periklis Lolis) in the Department of Power and Propulsion. Mr. Lolis is being co-supervised by Prof. Pericles Pilidis (The Head of the Department) and Dr. Vishal Sethi (Research Fellow).
This team seeks to liaise with the Society of Allied Weight Engineers, for networking purposes with experts from industry who may be able to provide model verification as well as general advice for the development of preliminary weight estimation models for civil aviation (existing and novel) powerplants.
Selected TERA Related Publications
Ogaji, S.O.T., Pilidis, P. and Sethi, V., “Advanced Power Plant Selection: The TERA (Techno-economic Environmental Risk Analysis) Framework”, ISABE 2009 Proceedings, ISABE-2009-1115
Ogaji, S.O.T, Pilidis, P. and Hales, R., “TERA- A Tool for Aero-engine Modelling and Management”, 2nd World Congress on Engineering Asset Management and 4th International Conference on Condition Monitoring, 11-14th June 2007, Harrogate, UK.
Gayraud, S., “Technical and Economic Assessments for Industrial Gas Turbines Selection” MSc Thesis, School of Engineering, Cranfield University, 1996.
Gayraud, S., “Design of a Decision Support System for Combined Cycle Schemes” MPhil Thesis, School of Engineering, Cranfield University, 1998.
Le Dilosquer, M., Lee, S. H. and Singh, R. “An integrated approach to the Impact of High Altitude NOx Emissions from Subsonic Aircraft on the Atmosphere”, 2nd International Symposium on Aeronautical Science and Technology (ISASTI’96), June 24-27, 1996, Jakarta, Indonesia. 2, pp 1317-1327.
Le Dilosquer, M., “Influence of Subsonic Aero Engine Design and Flight Routes on Atmospheric Pollution”, PhD Thesis, School of Engineering, Cranfield University, 1998.
Kyprianidis K., Au, D., Ogaji, S. and Grönstedt T., “Low Pressure System Component Advancements and its Impact on Future Turbofan Engine Emissions”, ISABE 2009 Proceedings, ISABE-2009-1276.
Bretschneider, S., Arago, O. and Staudacher, S., “Architecture of a Techno and Environmental Risk Assessment Tool Using a Multi-Modular Build Approach”, ISABE 2007 Proceedings, ISABE-2007 1103.
Kyprianidis K., Grönstedt T., Ogaji, S., Pilidis, P. and Singh, R., “Assessment of Future Aero Engine Designs with Intercooled and Intercooled Recuperated Cores”, ASME TURBO EXPO 2010, GT-2010-23621. (Paper accepted for publication).
Bellocq, P., Tantot, N., Sethi, V. and Pilidis, P., “Advanced Open Rotor Performance Modelling for Multi-Disciplinary Optimisation Assessments”, ASME TURBO EXPO 2010, GT-2010-22963. (Paper accepted for publication).
Kyprianidis, K., Colmenares Quintero, R., Pascovici, D., Ogaji, S., Pilidis, P. and Kalfas, A., “EVA – A Tool for EnVironmental Assessment of Novel Propulsion Cycles”, ASME TURBO EXPO 2008, GT-2008-50602.
Kyprianidis, K., Sethi, V., Ogaji, S.O.T., Pilidis, P., Singh, R. and Kalfas, A., “Thermo-Fluid Modelling for Gas Turbines - Part I: Theoretical Foundation and Uncertainty Analysis”, ASME TURBO EXPO 2009, GT-2009-60092.
Kyprianidis, K., Sethi, V., Ogaji, S.O.T., Pilidis, P., Singh, R. and Kalfas, A., “Thermo-Fluid Modelling for Gas Turbines - Part II: Impact on Performance Calculations and Emissions Predictions at Aircraft System Level”, ASME TURBO EXPO 2009, GT-2009-60101.
Alexiou A., Aretakis N., Roumeliotis I., and Mathioudakis K., "Short and Long Range Mission Analysis for a Geared Turbofan with Active Core Technologies" ASME TURBO EXPO 2010, GT2010-22701. (Paper accepted for publication).
Laskaridis, P., Pilidis, P., and Kotsiopoulos, P., “An Integrated Engine-Aircraft Performance Tool for the Assessment of New Technologies in Aeronautics”, ISABE-2005-1165, Munich 2005.