Comparative study of various custom constructed wind

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Comparative study of various custom constructed wind augumentationshrouds for optimal designUlan DakeevAssistant Professor in Industrial Management & Technology, Texas A&M University -KingsvilleUlan.dakeev@tamuk.eduFarzin HeidariAssociate Professor in Industrial Management & Technology, Texas A&M University -KingsvilleFarzin.heidari@tamuk.eduMohammad Mustaq BijapurMasters in Industrial Management & Technology, Texas A&M University KingsvilleMohammad.bijapur@students.tamuk.eduSumanth YanamalaMasters in Industrial Management & Technology, Texas A&M University Kingsvillesumanth.yanamala@students.tamuk.eduAbstractThis study represents the impact of wind velocities on the power generation and how thewind energy is dependent on the various flow behaviors of the wind subjected to the mediumit is allowed to flow through. A rapid growth and improvement in the utilization of windenergy to produce electricity is observed in the last two decades because of the concernsrelating to global warming and continuous increase in the prices of fossil fuels[1].Wind powergenerated increases by a factor of eight when the wind speed is doubled which shows thatenergy available in the wind directly reflects to the wind power[2].The amount of powerwhich the wind is capable of generating is given by the equationV3.The windpower equation shows that the wind power is largely influenced by the wind speed as it isdirectly proportional to cube of the wind speed. Previous studies have successfully revealedthat for constant wind available the shroud with inlet angle 30 degrees has been deliveringthe maximum wind energy among three different shrouds of inlet angles 20, 25 and 30degrees[3]. In continuation and further investigation to the previous research[3]conducted, inthis study researchers have designed and analyzed three different shrouds with varying inletangles of 35, 40 and 45 degrees by performing statistical tests using IBM SPSS statistics 22version software in order to determine the best optimal design of the shroud generatingmaximum wind energy. The statistical analysis performed on the data collected from thisexperiment have successfully showed that for constant wind available the shroud with inletangle 45 degrees has been delivering the maximum wind energy among three differentshrouds of inlet angles 35, 40 and 45 degreeswhich projects that the shroud with inlet angle45 degrees is the best optimal design for the shroud to achieve maximum wind energyamong the three shrouds.Proceedings of The 2016 IAJC-ISAM International ConferenceISBN 978-1-60643-379-9
IntroductionWind is one of the continuously occurring and naturally available sources to the mankind forproducing energy.The world is experiencing excessive demand for energy due to the rapideconomic growth and industrialization[4]. There is a huge increase in the consumption offossil fuel to produce energy. The global Carbon dioxide content in the environment hasupscaled from 280 ppm in the pre-industrialization era to 400 ppm in May 2013.This reportshows a 39 percent increase in the Carbon dioxide emissions into environment. Recentreports submitted by National Oceanic and atmospheric administration (NOAA) on March 72016, the global CO2content in the environment was 399.29 ppm in January 2015 whichincreased to 402.59 ppm in January 2016[5]. The negative effects of the fossil fuels emittingCO2and harmful toxic gases, continuous increase in the prices of fossil fuels and heavyconsumption leading to depletion of resources for future generations, most parts of the worldhas shown keen interest in wind energy technologies to produce power[6].Impressive characteristics of the wind and its abundant nature is attracting the world to seewind energy as the best means of source to generate electricity[7]. The power output a windturbine can deliver is highly depended upon the wind velocity. The wind velocity isresponsible for rotating the blades in order to convert the mechanical energy into electricalenergy. The purpose of this study is to investigate the newly augmented shroud devices withvarying inlet angles of 20, 30 and 35 degrees designed to maximize wind velocities.Furthermore, the wind velocity is diverted towards the wind turbines to generate maximumpower.The authors of this study, one from Civil Engineering background and the other frommechanical engineering were provided with the ability to perform statistical analysis, learn3D modeling, as well as 3D printing technology.Literature reviewGlobal warming is one of the major threats to the world which everyone should be aware ofand act responsible in controlling and reducing its future causes. About 80% of the globalwarming is being caused due to the CO2emission from the fossil fuels[8]. Wind power has theability to stop this environmental disaster as it is pollution free and consume nearly zeropercent of water in generating electricity thus reducing CO2emissions[9]. Recent reports haveshown an increase in the global wind power capacity to 318 GW from 39 GW between 2003and 2013. On May 11th2014 around 1 pm, Germany recorded 21.3 GW of wind powercapacity leaving behind solar power which was 15.2 GW indicating that wind power has thecapability of being one of the best resources to generate electricity[10]. Wind turbine isutilized as a main source to transform wind energy to electrical energy[11]. Wind turbines areusually categorized as horizontal axis and vertical axis based on design, and also intooffshore wind turbine and onshore wind turbine based on the installed location. Powercapacity of a wind turbine generally depends upon its design and the wind speed[12]. Onemajor drawback of wind turbine technology is with low wind speeds possessing less energydensity per volume of air hitting turbine blades which increases the production costcompared to the fossil fuels[13]. Various researches conducted to improve the energy densityin wind have shown that Concentrator Augmented Wind turbines (CWTs) would be one ofProceedings of The 2016 IAJC-ISAM International ConferenceISBN 978-1-60643-379-9
the best ways to improve power capacity and make it cost effective resource[14]. To improvethe power capacity of a wind turbine the authors of this paper have designed three differentshrouds with inlet angles of 35, 40, and 45 degrees and utilized in such a way to improve thewind speed which ultimately increases the wind power capacity of a wind turbine.Methodology:To develop a new technique to improve the power efficiency of a wind turbine from lowwind velocities the authors of this paper have designed and 3D printed three differentshrouds with inlet angles 35, 40 and 45 degrees to perform the analysis. The dimensions ofthe shrouds were designed such that they could produce maximum wind output from theavailable wind and achieve the best optimal design. This project involved three differenttools such as PTC Creo3.0 for designing, Cube Pro for 3D printing and IBM SPSS for dataanalysis. Figure 1 shows three 3D printed shrouds attached to cylindrical shaped sheet metalsthrough which the compressed air flows.Figure 1: 3D printed shroudsTo generate the wind required for the experiment a blower of 7 inches diameter was usedand the experiment was conducted in a closed environment to avoid any fluctuations in thewind direction and its velocity. Figure 2 shows three shrouds with 20°,30° and 35° inletangle and the blower which is used to generate wind. Using the anemometers 30 differentreadings of wind velocities were collected both at inlet and outlet of the shroud.Proceedings of The 2016 IAJC-ISAM International ConferenceISBN 978-1-60643-379-9
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