Power Plant Construction and QA/QC

Section 7.2 – Dams, Spillways, Water Conductors and Power Houses

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Section 7.2 – Dams, Spillways, Water Conductors and Power Houses

Overview

• Dams are Potential Storage Devices

• Design Based on Water Pressure – 33 ft = 14.7 psi

• Keys - Head (height) and Water Quantity

• Material – Dependent on Type and Head

• Spillways – excess water – prevent overtopping

• Water Conductors – Piping or Penstock

• Power House – Electric Generators

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Section 7.2 – Dams, Spillways, Water Conductors and Power Houses

Dam Types

• Roller Compacted Concrete

• Concrete Gravity

• Buttress

• Rockfill

• Earth

• Arch

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Section 7.2 – Dams, Spillways, Water Conductors and Power Houses

Spillways

Overflow

Side Channel

Chutes

Tunnel

Siphon

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Section 7.2 – Dams, Spillways, Water Conductors and Power Houses

Water Conductors

Underground•Timber Lining•Steel Pipe•Concrete•Concrete Lining•Bare Rock

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Section 7.2 – Dams, Spillways, Water Conductors and Power Houses

Power Houses

• Contain all the equipment to generate electrical power• Surface Type• Sub Surface Type

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Section 7.2 – Dams, Spillways, Water Conductors and Power Houses

Power Houses

Integral Intake

Conventional

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Section 7.2 – Dams, Spillways, Water Conductors and Power Houses

Pressure

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Questions?

Section 7.2 – Dams, Spillways, Water Conductors and Power Houses