Ocean Hydropower Harvest Station Team 5 Carlos Sosa Michael Horta Maria Medina

Total World Energy Consumption According to U.S. Energy Information Administration Units are in Quadrillion Btu British thermal unit (Btu) Quadrillion = 1,000,000,000,000,000 1 Btu = 0.29307107W 154,975,103 GW were consumed in 2012

Estimated Increase in Population In the next 50 years the world population is expected to increase by 2 billion If each of those new 2 billion individuals uses one 50W light bulb 50x200000000 = 100,000,000,000W = 100GW of more energy consumption to account for

Cost Analysis This table compares the US average levelized electricity cost (LEC) in dollars per kilowatt-hour for both non-renewable and alternative fuels LEC is the total cost of build and operate a power plant over its life divided by the total power output over its lifetime Hydro energy is not the cheapest initially, however it does show better results then other forms of power With the right investment and technology it can have promising results Power Plant Type Cost ($/KW-hr) Coal $0.10-0.14 Natural Gas $0.07-0.13 Nuclear $0.10 Wind $0.08-0.20 Solar PV $0.13 Solar Thermal $0.24 Geothermal $0.05 Biomass Hydro $0.08 These results are based on US EIA statistics and analysis from Annual Energy Outlook 2014

Wave Energy EPRI estimates the total wave energy resource along the outer continental is at 2,640 TWh/yr 1 TWh/yr of energy will supply around 93,850 average U.S. homes with power annually http://www.irishtimes.com/polopoly_fs/1.1925677.1410533549!/image/image.jpg_gen/derivatives/box_620_330/image.jpg

Diverse Regions Wave energy devices being developed and tested for diverse regions, and a variety of technologies have been proposed to capture the energy from waves all around the world Wave technologies have been designed to be installed in the nearshore, offshore, remote, and far offshore locations http://upload.wikimedia.org/wikipedia/commons/9/93/Elevation.jpg

Cost Incentives For now, the best wave generator technology in place in the United Kingdom and is producing energy at an average cost of 7.5 cents kWh Electricity generated by large scale coal burning power plants costs about 2.6 cents per kWh 2 cent per kWh is the projected goal to set for renewable wave energy

Wave Power Through Time First known patent for ocean wave energy by Girard and his son in Paris, France Yoshio Masuda’s experiments took over the modern search for harvesting wave energy The Clean Energy Tax Stimulus Act Ocean Power Technologies founded 1799 1903 1940’s 1973 1997 1998 2008 The oil crisis gave renewable energies new momentum to be further researched by many universities worldwide Pelamis Wave Power founded The first oscillating water-column type of wave-energy device made by Bochaux-Praceique near Bordeaux, France

Alternative Design #1 Methods of Generating Power Structure Waves compress air in chamber causing the air to be forced upward and spin the propeller Wave movement forces the magnet to move up and down inside the coil and generate a current Structure Hexagonal shaped design Made of pvc pipes filled with polyurethane foam Structure will enclose a power generator

Aesthetics Incorporate a jellyfish-like appearance Enclose is a bubble-like material Protect marine life Add florescent colors Led or glow in the dark paint Improve visibility in the dark and under harsh weather

Alternative Design #2 Clockwise Free Rotation Freewheel or overrunning clutch is a device in a transmission that disengages the driveshaft from the driven shaft when the driven shaft rotates faster than the driveshaft In the oscillation of the buoy, the alternator will only be engaged in the downward motion of the lever, therefor producing a constant direction in rational motion Counter Clockwise Locked Rotation http://en.wikipedia.org/wiki/Freewheel#/media/File:Freewheel_en.svg

PMA Alternator In a permanent magnet generator, the magnetic field of the rotor is produced by permanent magnets. Other types of generator use electromagnets to produce a magnetic field in a rotor winding Can also produce energy in both rotations http://i.ebayimg.com/01/!Btf)CwgBWk~$(KGrHqYOKkYEvPP1BkV1BL8NFZF(h!~~_35.JPG

Spur Gear Speed Increaser Spur and helical gear reducers are the best candidates for use as a speed increase Spur gear speed reducer may be used as a speed increaser within the same speed and power range for which it is rated as a speed reducer http://www.davidbrown.cn/products/centre%20drives%20large.jpg

Alternative Design #3 Similar technology to the Beta Stirling Engine A piston attached to a buoy will move up and down by the oscillating motion of the waves housed in a thin, light cylindrical structure The piston will be pinned to a large gear, housed in a larger cylindrical structure, causing the gear to rotate The larger gear will be connected to a smaller one which will then be connected to an alternator http://www.cnccookbook.com/img/StirlingEngines/BetaStirlingTG4web.jpg