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Investigation of a Piston Engine and Solid Oxide Fuel Cell Combined Hybrid Modular Powerplant for Unmanned Aerial Vehicles
Technical Paper
2021-01-0220
ISSN: 0148-7191, e-ISSN: 2688-3627
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SAE WCX Digital Summit
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English
Abstract
This work investigates a combined internal combustion engine and solid oxide fuel cell (SOFC) hybrid powertrain for unmanned aerial vehicles (UAV). UAVs are increasingly used in large agriculture for crop management and water resource visual inspection, and in militarized applications, as they allow for safer, unmanned reconnaissance missions. The limited flight time of UAVs, as a result of the traditional lithium polymer batteries used for power, has restricted the widespread implementation of the UAV technology.
A hybrid power train, utilizing energy dense liquid fuel, provides the capability of powering a UAV for longer duration missions. The hybrid power train consists of a small internal combustion engine that acts as a partial oxidation fuel reformer, simultaneously producing mechanical shaft power. The 0.3 in3 piston engine is a typical air cooled, glow engine utilizing a 60/40 percent (by volume) mixture of methanol and nitromethane, respectively. The syngas generated by the combustion engine can then be utilized by a tubular SOFC stack to generate electrical energy for the UAV flight systems. The SOFC system operating on combustion exhaust from the engine produced a maximum of ~650 mW/cm2, while the engine was continually producing ~750 W of mechanical shaft power.
In case of an engine failure, the liquid fuel may be directly utilized by the SOFC system to maintain power generation. Additionally, the engine may be manually shutdown to provide silent onboard power generation. In testing, a tubular SOFC provided with direct liquid 60/40 methanol/nitromethane fuel was capable of producing above 550 mW/cm2 for maximum power. The SOFC system was able to operate continuously under direct liquid fueling for 4 hours without degradation.
The power produced by the proposed hybrid powertrain is expected to be sufficient to power a 15 kg UAV for long endurance missions lasting in the range of 200-500% of current recorded UAV flight duration.
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Metcalf, A., Welles, T., and Ahn, J., "Investigation of a Piston Engine and Solid Oxide Fuel Cell Combined Hybrid Modular Powerplant for Unmanned Aerial Vehicles," SAE Technical Paper 2021-01-0220, 2021, https://doi.org/10.4271/2021-01-0220.Data Sets - Support Documents
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References
- Walter , A. , Finger , R. , Huber , R. , and Buchmann , N. Smart Farming is Key to Developing Sustainable Agriculture Proceedings of the National Academy of Sciences of the United States of America 114 24 6148 6150 2017 10.1073/pnas.1707462114
- Alreshidi , E. Smart Sustainable Agriculture (SSA) Solution Underpinned by Internet of Things (IoT) and Artificial Intelligence (AI) International Journal of Advanced Computer Science and Applications 10 5 93 102 2019 https://doi.org/10.14569/IJACSA.2019.0100513
- Boursianis , A. , Papadopoulou , M. , Diamantoulakis , P. , Liopa-Tsakalidi , A. et al. Internet of Things (IoT) and Agricultural Unmanned Aerial Vehicles (UAVs) in Smart Farming: A Comprehensive Review Internet of Things 100187 2020 https://doi.org/10.1016/j.iot.2020.100187
- McConnell , V. Military UAVs Claiming the Skies with Fuel Cell Power Fuel Cells Bulletin 12 12 15 2007 https://doi.org/10.1016/S1464-2859(07)70438-8
- Gong , A. , Palmer , J. , Brian , G. , Harvey , J. et al. Performance of a Hybrid, Fuel-Cell-Based Power System during Simulated Small Unmanned Aircraft Missions International Journal of Hydrogen Energy 11418 11426 2016 https://doi.org/10.1016/j.ijhydene.2016.04.044
- Ramirez-Atencia , C. , Rodriguez-Fernandez , V. , and Camacho , D. A Revision on Multi-Criteria Decision Making Methods for Multi-UAV Mission Planning Support Expert Systems with Applications 160 Dec. 113708 2020 https://doi.org/10.1016/j.eswa.2020.113708
- Wolfert , S. , Ge , L. , Verdouw , C. , and Bogaardt , M. Big Data in Smart Farming - A Review Agricultural Systems Elsevier Ltd. 2017 69 80 https://doi.org/10.1016/j.agsy.2017.01.023
- Ye , W. , Luo , J. , Shan , F. , Wu , W. et al. Offspeeding: Optimal Energy-Efficient Flight Speed Scheduling for UAV-Assisted Edge Computing Computer Networks 183 Oct. 107577 2020 https://doi.org/10.1016/j.comnet.2020.107577
- 2020 https://www.szaspower.com/industry-news/The-advantages-and-disadvantag.html
- Energy.gov 2020 https://www.energy.gov/eere/articles/how-does-lithium-ion-battery-work
- Yuan , J. , Sun , C. , Fang , L. , Song , Y. et al. A Lithiated Gel Polymer Electrolyte with Superior Interfacial Performance for Safe and Long-Life Lithium Metal Battery Journal of Energy Chemistry 55 313 322 2021 10.1016/j.jechem.2020.06.052
- O’Hayre , R. , Cha , S.W. , Colella , W. , and Prinz , F.B. Fuel Cell Fundamentals Hoboken, NJ John Wiley & Sons, Inc 2016 10.1002/9781119191766 9781119191766
- Falkenstein-Smith , R. , Zeng , P. , and Ahn , J. Investigation of Oxygen Transport Membrane Reactors for Oxy-Fuel Combustion and Carbon Capture Purposes Proc. Combust. Inst. 36 3 3969 3976 2017 10.1016/j.proci.2016.09.005
- Brett , D. , Atkinson , A. , Brandon , N. , and Skinner , S. Intermediate Temperature Solid Oxide Fuel Cells Chemical Society Reviews 37 8 1568 1578 2008 https://doi.org/10.1039/b612060c
- Jacobson , A. Materials for Solid Oxide Fuel Cells Chemistry of Materials 22 3 660 674 2010 https://doi.org/10.1021/cm902640j
- Kim , D. and Lee , K. Effect of Lanthanide (Ln=La, Nd, and Pr) Doping on Electrochemical Performance of Ln2NiO4+δ−YSZ Composite Cathodes for Solid Oxide Fuel Cells Ceramics International Sep. 2020 https://doi.org/10.1016/j.ceramint.2020.09.092
- Ormerod , R. Solid Oxide Fuel Cells Chemical Society Reviews 17 28 2003 https://doi.org/10.1039/b105764m
- Sun , C. , Hui , R. , and Roller , J. Cathode Materials for Solid Oxide Fuel Cells: A Review Journal of Solid State Electrochemistry 14 7 1125 1144 2010 https://doi.org/10.1007/s10008-009-0932-0
- Wachsman , E. , and Lee , K. Lowering the Temperature of Solid Oxide Fuel Cells Science, American Association for the Advancement of Science 935 939 2011 https://doi.org/10.1126/science.1204090
- Milcarek , R.J. , Garrett , M.J. , and Ahn , J. Micro-Tubular Flame-Assisted Fuel Cell Stacks Int. J. Hydrogen Energy 41 46 21489 21496 2016 10.1016/j.ijhydene.2016.09.005.
- Milcarek , R.J. , Garrett , M.J. , Wang , K. , and Ahn , J. Micro-Tubular Flame-Assisted Fuel Cells Running Methane Int. J. Hydrogen Energy 41 45 20670 20679 2016 10.1016/j.ijhydene.2016.08.155.
- Milcarek , R.J. and Ahn , J. Rich-Burn, Flame-Assisted Fuel Cell, Quick-Mix, Lean-Burn (RFQL) Combustor and Power Generation J. Power Sources 381 18 25 2018 10.1016/j.jpowsour.2018.02.006.
- Milcarek , R.J. , Wang , K. , Falkenstein-Smith , R.L. , and Ahn , J. Micro-Tubular Flame-Assisted Fuel Cells for Microcombined Heat and Power Systems J. Power Sources 306 148 151 2016 10.1016/j.jpowsour.2015.12.018.
- Milcarek , R.J. , Garrett , M.J. , Welles , T.S. , and Ahn , J. Performance Investigation of a Micro-Tubular Flameassisted Fuel Cell Stack with 3,000 Rapid Thermal Cycles J. Power Sources 394 86 93 2018 10.1016/j.jpowsour.2018.05.060.
- Milcarek , R.J. , DeBiase , V.P. , and Ahn , J. Investigation of Startup, Performance and Cycling of a Residential Furnace Integrated with Micro-Tubular Flame-Assisted Fuel Cells for Micro-Combined Heat and Power Energy 196 117148 2020 10.1016/j.energy.2020.117148