Small-scale Wind Energy Portable Turbine (SWEPT)

dc.contributor.authorKishore, Ravi Ananten
dc.contributor.committeechairPriya, Shashanken
dc.contributor.committeememberO'Brien, Walter F. Jr.en
dc.contributor.committeememberTafti, Danesh K.en
dc.contributor.departmentMechanical Engineeringen
dc.date.accessioned2013-05-25T08:00:42Zen
dc.date.available2013-05-25T08:00:42Zen
dc.date.issued2013-05-24en
dc.description.abstractLarge Scale Wind Turbines (LSWTs) have been extensively examined for decades but very few studies have been conducted on the small scale wind turbines (SSWTs) especially for the applications near ground level where wind speed is of order of few meters per second. This study provides the first systematic effort towards design and development of SSWTs (rotor diameter<50 cm) targeted to operate at low wind speeds (<5 m/s). An inverse design and optimization tool based on Blade Element Momentum theory is proposed. The utility and efficacy of the tool was validated by demonstrating a 40 cm diameter small-scale wind energy portable turbine (SWEPT) operating in very low wind speed range of 1 m/s-5 m/s with extremely high power coefficient. In comparison to the published literature, SWEPT is one of the most efficient wind turbines at the small scale and very low wind speeds with the power coefficient of 32% and overall efficiency of 21% at its rated wind speed of 4.0 m/s. It has very low cut-in speed of 1.7 m/s. Wind tunnel experiments revealed that SWEPT has rated power output of 1 W at 4.0 m/s, and it is capable of producing power output up to 9.3 W at wind speed of 10 m/s. The study was further extended to develop a piezoelectric wind turbine which operates below 2.0 m/s wind speed. The piezoelectric wind turbine of overall dimension of 100mm x 78mm x 65mm is capable of producing peak electric power of about 450 microwatt at the rated wind speed of 1.9 m/s.en
dc.description.degreeMaster of Scienceen
dc.format.mediumETDen
dc.identifier.othervt_gsexam:746en
dc.identifier.urihttp://hdl.handle.net/10919/23099en
dc.publisherVirginia Techen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectSmall scale wind turbineen
dc.subjectDiffuser augmented wind turbineen
dc.subjectComputational fluid dynamicsen
dc.subjectPortable Poweren
dc.subjectWind Energyen
dc.titleSmall-scale Wind Energy Portable Turbine (SWEPT)en
dc.typeThesisen
thesis.degree.disciplineMechanical Engineeringen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen
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