Slide 1

Lecture 35 November 20 ECEN2060 Frank Barnes

Slide 2

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

Slide 3

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 1,025kg/m 3

Slide 4

Systems for Extracting Energy from Waves

Slide 5

Variations Wave Shapes and Heights

Slide 6

Distributions of Wave Heights and Periods.

Slide 7

Wave Power Available in kWh/m/yr Near San Francisco

Slide 8

Wave Energy Estimates

Slide 9

Variations in Wave Power with Time of Year

Slide 10

Wave Power Results for a 1MW Generator in kW

Slide 11

Annual Energy MWh/yr for Site Near San Francisco

Slide 12

Wind and Wave Generators Colocated off Shore

Slide 13

Two Tidal Generators.

Slide 14

Tides and Position of the Moon

Slide 15

Variations with Time of Year

Slide 16

Variation of Tides

Slide 17

Velocity of Tidal Currents and Available Power ~ v 3

Slide 18

Common Mixed Tidal Currents Over a Day

Slide 19

Cut In and Rated Speed

Slide 20

Surface Tidal Speed Probability Distribution Tacoma Narrows

Slide 21

Estimated Energy Delivered For a Turbine Rated at 600kW

Slide 22

Hydropower Run of the River

Slide 23

Power Plant

Slide 24

Slide 25

Conversion Factors

Slide 26

Pelton Turbine

Slide 27

Angle Drive Propeller Reaction Turbine

Slide 28

Net Head after Friction Loss

Slide 29

Friction Head Loss vs Flow Rate for Small Pipes

Slide 30

Weir For Measuring Flow 1. Q = 1.8 (W- 0.2h)h 1.5 (m 3 /s)

Slide 31

Electrical Block Diagram for Micro Hydro System

Slide 32

Pumped Hydro System

Slide 33

Raccoon Mountain

Slide 34

Slide 35

Two Penstock Pumped Hydro System

Slide 36

Biomass Gasification Process

Slide 37

Geothermal Plants

Slide 38

Binary Geothermal System