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Fluid flow nozzle energy harvesters

Sherritt, Stewart and Lee, Hyeong Jae and Walkemeyer, Phillip and Winn, Tyler and Tosi, Luis Phillipe and Colonius, Tim (2015) Fluid flow nozzle energy harvesters. In: Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2015. Proceedings of SPIE. No.9435. Society of Photo-optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. No. 943507. ISBN 9781628415384.

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Power generation schemes that could be used downhole in an oil well to produce about 1 Watt average power with long-life (decades) are actively being developed. A variety of proposed energy harvesting schemes could be used to extract energy from this environment but each of these has their own limitations that limit their practical use. Since vibrating piezoelectric structures are solid state and can be driven below their fatigue limit, harvesters based on these structures are capable of operating for very long lifetimes (decades); thereby, possibly overcoming a principle limitation of existing technology based on rotating turbo-machinery. An initial survey [1] identified that spline nozzle configurations can be used to excite a vibrating piezoelectric structure in such a way as to convert the abundant flow energy into useful amounts of electrical power. This paper presents current flow energy harvesting designs and experimental results of specific spline nozzle/ bimorph design configurations which have generated suitable power per nozzle at or above well production analogous flow rates. Theoretical models for non-dimensional analysis and constitutive electromechanical model are also presented in this paper to optimize the flow harvesting system.

Item Type:Book Section
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URLURL TypeDescription
Tosi, Luis Phillipe0000-0002-0819-4765
Colonius, Tim0000-0003-0326-3909
Additional Information:© 2015 Society of Photo-Optical Instrumentation Engineers (SPIE). The research at the Jet Propulsion Laboratory (JPL), a division of the California Institute of Technology, was carried out under a contract with the National Aeronautics Space Agency (NASA). Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise, does not constitute or imply its endorsement by the United States Government or the Jet Propulsion Laboratory, California Institute of Technology.
Funding AgencyGrant Number
Subject Keywords:Actuators, Piezoelectric Devices, Flow Energy Harvesting, bimorphs, transducers vibrators, piezoelectric power generation, fluid structure interaction
Series Name:Proceedings of SPIE
Issue or Number:9435
Record Number:CaltechAUTHORS:20180713-131155883
Persistent URL:
Official Citation:Stewart Sherrit, Hyeong Jae Lee, Phillip Walkemeyer, Tyler Winn, Luis Phillipe Tosi, Tim Colonius, "Fluid flow nozzle energy harvesters", Proc. SPIE 9435, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2015, 943507 (3 April 2015); doi: 10.1117/12.2084574;
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:87834
Deposited By: George Porter
Deposited On:16 Jul 2018 15:40
Last Modified:09 Mar 2020 13:19

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