HAWTs vs. VAWTs Bayley Costner Jason Cosma Tristan Fitzwater.

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Presentation transcript:

HAWTs vs. VAWTs Bayley Costner Jason Cosma Tristan Fitzwater

History of Wind Turbines Persians first to use windmills between 500 and 900 B.C. Spread to middle east, used in food production 1,000 A.D., wind power technology spread north to Europe 1850, U.S. Wind Engine Company creates the Halladay Windmill 1880, steel blades invented for windmills 1970, skyrocketing gas prices renew interest in wind power 1980, first large wind farms are installed

How do Wind Turbines Work? Convert wind energy into electricity Use uneven propellers to catch wind Wind turns the propellers which turns a generator Generator converts mechanical energy into electricity content/uploads/2012/03/wem-07_fig01.gif

Current State of Wind Turbines 4% of the power grid in the US is currently windpower 1 Some towns, like Rock Port, MO, are completely powered by wind turbines. 2 Wind turbines are ranked #7 on the list of most used renewable energy sources on listverse.com 3 1 "American Wind Power Reaches Major Power Generation Milestones in 2013." American Wind Power Reaches Major Power Generation Milestones in Awea.org, 5 Mar Web. 26 Oct Thompson, Andrea. "First U.S. Town Powered Completely By Wind."LiveScience. TechMedia Network, 15 July Web. 26 Oct “Top 10 Renewable Energy Sources - Listverse." Listverse. 1 May Web. 26 Oct

What is a HAWT? Horizontal Axis Wind Turbine Much larger than others Mostly in rural areas Most common type of turbine a-windfarm.jpg

What is a VAWT? Vertical Axis Wind Turbines Used in Urban areas Much Smaller than HAWTs Much rarer due to being a newer technology Provides small amounts of energy in a small space 1 0c134d468d7cbb56d12fc559a17ef711 1 Hill, N., R. Dominy, G. Ingram, and J. Dominy. "Darrieus Turbines: The Physics of Self-starting." Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy (2008): Print.

Future Improvements of Wind Energy Wind energy is a newer industry, but already makes sense economically Cost of wind energy is trending downwards 1 The U.S. Department of Energy has found that wind energy can be a viable source of energy in all 50 states by As HAWT continues to dominate onshore wind farms, VAWT will begin to be used for large offshore wind farms 2 Offshore_wind_turbines_edit1.jpg 1 "Wind Vision." Wind Vision. N.p., n.d. Web. 27 Oct Sahin, A. "Progress and Recent Trends in Wind Energy." Progress in Energy and Combustion Science 30.5 (2004): Web.

Future Uses/Improvements of VAWT Because VAWT blades can be assembled at the installation site, they are more efficient to transport than HAWT blades 2 Several large-scale multi-megawatt offshore VAWT projects are currently being built 2 HAWT are not capable of withstanding high wind speeds, so they cannot be used efficiently offshore (where wind speeds are generally much higher), where VAWT will begin to be built 1 1 Sahin, A. "Progress and Recent Trends in Wind Energy." Progress in Energy and Combustion Science 30.5 (2004): Web. 2 Tjiu, Willy, Tjukup Marnoto, Sohif Mat, Mohd Hafidz Ruslan, and Kamaruzzaman Sopian. "Darrieus Vertical Axis Wind Turbine for Power Generation II: Challenges in HAWT and the Opportunity of Multi-megawatt Darrieus VAWT Development." Renewable Energy 75 (2015): Web.

Why is this important? According to the Department of Energy, wind energy can help avoid the emission of 250,000 metric tons of air pollution 1 Wind energy can save consumers up to $280 billion by 2050 due to low vulnerability of price spikes, and can support 600,000 jobs by Wind energy will help to avoid over 12 gigatonnes of greenhouse gases by nuclear.org/uploadedImages/org/Nuclear_Basics/Lifecycle %20greenhouse%20gas%20emissions.png 1 "Wind Vision." Wind Vision. N.p., n.d. Web. 27 Oct

Sources "American Wind Power Reaches Major Power Generation Milestones in 2013." American Wind Power Reaches Major Power Generation Milestones in Awea.org, 5 Mar Web. 26 Oct Thompson, Andrea. "First U.S. Town Powered Completely By Wind."LiveScience. TechMedia Network, 15 July Web. 26 Oct “Top 10 Renewable Energy Sources - Listverse." Listverse. 1 May Web. 26 Oct Hill, N., R. Dominy, G. Ingram, and J. Dominy. "Darrieus Turbines: The Physics of Self-starting." Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy (2008): Print. "Wind Vision." Wind Vision. N.p., n.d. Web. 27 Oct Sahin, A. "Progress and Recent Trends in Wind Energy." Progress in Energy and Combustion Science 30.5 (2004): Web. Tjiu, Willy, Tjukup Marnoto, Sohif Mat, Mohd Hafidz Ruslan, and Kamaruzzaman Sopian. "Darrieus Vertical Axis Wind Turbine for Power Generation II: Challenges in HAWT and the Opportunity of Multi-megawatt Darrieus VAWT Development." Renewable Energy 75 (2015): Web.