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# Hydropower !

Hydropower !. Rowan University Freshman Clinic Fall 2003. Objectives of Module. Learn about energy conversion Learn about unit conversions Understand the differences between force, work, and power Assemble a turbine, measure dimensions Document the tests neatly in your lab books Télécharger la présentation ## Hydropower !

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1. Hydropower ! Rowan University Freshman Clinic Fall 2003

2. Objectives of Module • Learn about energy conversion • Learn about unit conversions • Understand the differences between force, work, and power • Assemble a turbine, measure dimensions • Document the tests neatly in your lab books • Test the turbine: measure time to lift weights • Have fun!

3. Examples of Hydropower Itaipu Dam, Peru: Largest hydro plant in world – 12,600 MW ! Hydroelectric Turbine

4. Parts of a Dam

5. Hydroelectric Generators Kaplan Turbine Computer simulation of flow through turbine

6. Energy Conversion • Water stored at a high elevation has Potential Energy • Water released, gains Kinetic Energy • Water motion transferred to turbine; converted to Mechanical Energy • Turbine motion converted to Electrical Energy

7. Upper Reservoir Overflow line Pulley Mass Penstock Refill line Turbine Ball valve Pump Lower Reservoir ExperimentalSetup

8. Impulse Turbine

9. Force, Work, and Power • Force: F = m*a • F = force, Newtons (kg-m/s2) • m = mass (kg) • a = acceleration (m/s2) • Weight – a special force: w = m*g • w = weight (N) • g = gravitational acceleration, 9.81 m/s2

10. Force, Work, and Power • Work = force * distance = F*D • W = work, Newton-meters (N-m = kg*m2/s2) • F = force (Newtons) • D = distance (meters) • Power = Work per time = W/t • P = power, Watts (W, kg*m2/s3) • W = work (N-m) • t = time (seconds)

11. Turbine Parts

12. What We’ll Do • Break into groups • Assign responsibilities within groups • Start recording in lab book; use format suggested in handout • Build turbine, measure dimensions • Sketch turbine in lab book • Test it !

13. Things You’ll Measure • Mass of weight to be lifted • Distance to raise mass • Time to lift mass • Calculate: • Force (weight) • Work • Power

14. Turbine Test Results

15. Deliverables (what to turn in) • TODAY: • Carbon copies from lab notebook • Title of module • Team members & assigned roles • Section number • Today’s date • Purpose of lab • Brief description of procedure • Sketch of your turbine • Table of data & preliminary results • Plot of Time to Raise Mass and Power Output vs. Mass

16. Deliverables (what to turn in) • NEXT WEEK: • Work in your groups ! • Lab Report • Use Freshman Clinic Laboratory Report Format • Format description, example, and grading scheme can be found on Freshman Clinic web site: http://engineering.rowan.edu/~orlins/fc/

17. http://users.rcn.com/hands-on/hydro/contest.html

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