Hydropower

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Hydropower !

• Rowan University
• Freshman Clinic
• Fall 2003

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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!

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Examples of Hydropower
Itaipu Dam, Peru Largest hydro plant in world
12,600 MW !
Hydroelectric Turbine
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Parts of a Dam
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Hydroelectric Generators
Kaplan Turbine
Computer simulation of flow through turbine
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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

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ExperimentalSetup
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Impulse Turbine
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Force, Work, and Power

• Force F ma
• F force, Newtons (kg-m/s2)
• m mass (kg)
• a acceleration (m/s2)
• Weight a special force w mg
• w weight (N)
• g gravitational acceleration, 9.81 m/s2

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Force, Work, and Power

• Work force distance FD
• W work, Newton-meters (N-m kgm2/s2)
• F force (Newtons)
• D distance (meters)
• Power Work per time W/t
• P power, Watts (W, kgm2/s3)
• W work (N-m)
• t time (seconds)

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Turbine Parts
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What Well 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 !

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Things Youll Measure

• Mass of weight to be lifted
• Distance to raise mass
• Time to lift mass
• Calculate
• Force (weight)
• Work
• Power

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Turbine Test Results
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Deliverables (what to turn in)

• TODAY
• Carbon copies from lab notebook
• Title of module
• Team members assigned roles
• Section number
• Todays 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

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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/

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