This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Thermojet: An Old Idea Can Define a Novel Family of Jets
Technical Paper
2013-01-2205
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
This paper investigates the ancient idea of augmenting the thrust produced by a rotating fan by producing a thermal gradient by heating the outflow. Some of the pioneers of aeronautics have originally conceived this idea: the indirect jet (Bleriot Coanda Monoplane, 1910) and the “thermojet” (Caproni-Ciampini CC2, 1942). They were abandoned because of the better performances by traditional jets such as the ones developed in Germany and USA during 2nd World War. Antony Colozza (NASA), one of the modern fathers of high altitude airships, has recently proposed it again to be used on fuel cells powered airplanes and airships. Most fuel cells have a large thermal dispersion at high temperature (about 40%), but it could be possible to use it for heating the propulsive stream of high-speed air produced into ducted fan propulsive units. The actual state of the research is only introductory and aims to verify the feasibility of this energy recovery, which could in future enhance the energy efficiency of electrical airplanes powered by ducted fan units especially for high altitude operations. The preliminary research activities presented are conducted assuming a reduced scale system in order to have the possibility of future costless experimental activity for validation. The CFD evaluations have been performed by two different codes: the well tested Ansys Fluent and a lightweight academic code EasyCFD.
Recommended Content
| Technical Paper | Energy Efficient Fan Design |
| Technical Paper | Optimization of Vehicle Electrical Energy Consumption |
Citation
Trancossi, M. and Pascoa, J., "Thermojet: An Old Idea Can Define a Novel Family of Jets," SAE Technical Paper 2013-01-2205, 2013, https://doi.org/10.4271/2013-01-2205.Also In
References
- Kondratieff , N. D. On the Notion of Economic Statics, Dynamics and Fluctuations Moscow 1924 Problems of Economic Fluctuations 1936 Institute for Business Cycle Research
- Kondratieff , N. D. Dynamics of Economic Development: Long Cycles and Industrial Growth in Historical Context Macmillan London 1998
- Schumpeter , J. Depressions: Can we learn from past experience? Econ. of the Recovery Program 1934
- Schumpeter , J. The Historical Approach to the Analysis of Business Cycles NBER Conference on Business Cycle Research 1949
- Goldstein , J. Long Cycles: Prosperity and War in the Modern Age Yale Univ. Press New Haven 1988
- MAAT Project Multibody Advanced Airship for Transport has started, EU Cordis wire 2011 http://cordis.europa.eu/wire/index.cfm?fuseaction=article.Detail&rcn=28667
- Dumas , A. , Trancossi , M. , Madonia , M. , and Giuliani , I. Multibody Advanced Airship for Transport SAE Technical Paper 2011-01-2786 2011 10.4271/2011-01-2786
- Trancossi M. , Dumas A. , Madonia M. , Giuliani I. and Baffigi , IT. Patent n. RE2011A000049 Ugello capace di deviare in modo dinamico e controllabile un getto sintetico senza parti meccaniche in movimento e suo sistema di controllo University of Modena and Reggio Emilia 30 06 2011
- Trancossi , M. An Overview of Scientific and Technical Literature on Coanda Effect Applied to Nozzles SAE Technical Paper 2011-01-2591 2011 10.4271/2011-01-2591
- Trancossi , M. and Dumas , A. Coanda Synthetic Jet Deflection Apparatus and Control SAE Technical Paper 2011-01-2590 2011 10.4271/2011-01-2590
- Trancossi , M. and Dumas , A. A.C.H.E.O.N.: Aerial Coanda High Efficiency Orienting-jet Nozzle SAE Technical Paper 2011-01-2737 2011 10.4271/2011-01-2737
- Lopes , A. M. G. A versatile software tool for the numerical simulation of fluid flow and heat transfer in simple geometries JA - Comput. Appl. Eng. Educ. 18 Wiley Subscription Services, Inc., A Wiley Company, SN - 1099-0542 10.1002/cae.20230
- Dumas , A. Trancossi , M. and Anzillotti , S. An Airship Design Methodology Based on Available Solar Energy in Low Stratosphere ASME 2010 International Mechanical Engineering Congress and Exposition (IMECE2010) November 12 18 2010 Vancouver, British Columbia Canada, ASME Conf. Proc. 2010 171 181 2010 10.1115/IMECE2010-38931
- Dumas , A , Anzillotti , S. , Madonia M. and Trancossi M. Effects of Altitude on Photovoltaic Production of Hydrogen, Year 2011 ASME 2011 5th International Conference on Energy Sustainability, Parts A, B, and C / Photovoltaics August 7 10 2011 Washington, DC, USA ASME Conf. Proc. 2011 1365 1374 2011 10.1115/ES2011-54624
- Pavelec , S. M. The jet race and the Second World War illustrated Praeger Security International 5 6 Westport, Connecticut 2007 0-275-99355-8
- Morse , Stan Illustrated Encyclopedia of Aircraft Orbis Publishing London 1982
- Ilieva , G. , Pascoa , J. , Dumas , A. and Trancossi , M. A critical review of propulsion concepts for modern airships Central European Journal of Engineering 2012 2 2 189 200 10.2478/s13531-011-0070-1
- Sammes N. , Smirnova A. , Vasylyev O. Fuel Cell Technologies: State and Perspectives NATO Science Series, Mathematics, Physics and Chemistry 202 19 34 2005 10.1007/1-4020-3498-9_3
- Chan S.H. , Ho H.K. , Tian Y. Multi-level modeling of SOFC-gas turbine hybrid system International Journal of Hydrogen Energy 28 8 889 900 2003 10.1016/S0360-3199(02)00160-X
- McCormick , B. W. Aerodynamics of V/STOL Flight Academic Press 1967
- Shuai Wang ; Xiao-hui Qi Aerodynamic data model analysis and simulation of ducted fan UAV Electronics, Communications and Control (ICECC), 2011 International Conference on 699 702 9 11 Sept. 2011 10.1109/ICECC.2011.6066382
- Kerrebrock , J. L. Aircraft Engines and Gas Turbines 2 nd The MIT Press Cambridge
- Provitola A.I. Electric thruster and thrust augmenter US Patent number: 6644014 29 Apr 2002 11 Nov 2003