380 likes | 397 Views
Learn about wave power extraction systems, energy conversion factors, turbine types, and geothermal and hydro power. Explore wave power variations and potentialities.
E N D
Lecture 35 November 20 ECEN2060 Frank Barnes
Home works • Home work, Wednesday Nov. 20th • 7.1, 7.2, 7.3, 7.4, 7.5 • Home work for Monday Dec 2, 2013 • 7.7,7.10,7.11, 7.12, 7.13 • Also plan on getting started on your term paper. • Home work for chapter 8 Friday Dec 6, • 8.1,8.5.8.6, 8.8, 8.10,8.11
Energy In a Wave • The power in a sine wave with Height H and period T • P= • For H =3m and T=8sec • P= 70.5kW/m • Note the density of water is ρ 1,025kg/m3
Velocity of Tidal Currents and Available Power ~ v3 • 1. Note Betz limit applies at 59.3% to the fraction of the power that can be used of the half sine wave P=(ρAVm3)
Power Plant • 1. Potential energy from ΔH and kinetic energy from v2 energy head = z + • Z= height P = pressure • γ= Specific Weight v = velocity • g = gravitational constant.
Weir For Measuring Flow • 1. Q = 1.8 (W- 0.2h)h1.5(m3 /s)