212409044 - Optimization of a Savonius Rotor Vertical-Axis...

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1 Optimization of a Savonius Rotor Vertical-Axis Wind Turbine for Use in Water Pumping Systems in Rural Honduras by Aron Zingman Submitted to the Department of Mechanical Engineering in Partial Fulfillment of the Requirements for the Degree of Bachelor of Science at the MASSACHESETTS INSTITUTE OF TECHNOLOGY June 2007 © 2007 Aron O. Zingman All rights reserved The author hereby grants to MIT permission to reproduce and to distribute publicly paper and electronic copies of this thesis document in whole or in part in any medium now known or hereafter created. Signature of Author ........................................................................................................................... Department of Mechanical Engineering May 11, 2007 Certified by ........................................................................................................................................ Daniel Frey Robert N. Noyce Associate Prof. of Mechanical Engineering & Engineering Systems Thesis Supervisor Accepted by ....................................................................................................................................... John H. Lienhard V Department of Mechanical Engineering Chairman, Undergraduate Thesis Committee
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2 Acknowledgements The author is grateful for all the help and support he has received during the development of this thesis project. First he would like to acknowledge the work of his fellow members of the D-Lab Honduras Team. Without the team of his fellow students, Stephen Gerrard, BeAnn Leu, and Ashley Thomas, and the trip leaders in actuality and spirit, Marta Fernandez Suarez, Victor Grau Serrat, Ina Heafitz, and Patricia Pina Calafi, our wind-powered water pump would not have gotten off the ground. The same holds true for Gines, Eddie, Pilo, Tonio, Juan, and Limbor at the Fundación San Alonso Rodríguez and the members of the Nuevo Paraiso Enterprise as the MCA. Thank you, Maria, for your intense curiosity and unending patience as we worked at your home. The author appreciates the work done by the Toyota Motor Corporation in building the 1991 Toyota Celica GT Convertible with the ability to accept the “wind tunnel” package. Kaitlyn Becker and Adam Bouhenguel were extremely helpful as “wind tunnel” technicians, keeping the author safe when driving the “wind tunnel” by recording measurements. Lastly, Brenden Epps and Allen Armstrong provided extensive insight about the aerodynamics of the Savonius rotor and mechanics of the system, respectively. Those discussions were critical in reaching a deeper understanding of the modifications to be made to improve performance of the wind-powered pump.
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3 Optimization of a Savonius Rotor Vertical-Axis Wind Turbine for Use in Water Pumping Systems in Rural Honduras by Aron Zingman Submitted to the Department of Mechanical Engineering on May 11, 2007 in partial fulfillment of the Requirements for the Degree of Bachelor of Science in Mechanical Engineering Abstract The D-lab Honduras team designed and constructed a wind-powered water pump in rural Honduras during IAP 2007. Currently, the system does not work under its own power and water must be pumped by hand. This thesis seeks to explore a variety of mechanism and aerodynamic changes to allow the system to function as designed. The novel modifications to the Savonius rotor that were made do not seem to improve its performance.
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