Power Plant Construction and QA/QC

Section 2.3– Steam Generators

Engineering Technology Engineering Technology DivisionDivision

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Overview

Section 2.3– Steam Generators

• Introduction

• Water Tube Boilers

• Steam Water Circulation

• Design and Construction

• Heat Recovery

• Fire Tube Boilers

• Scotch Marine

• Firebox

• Passes

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Introduction

Section 2.3– Steam Generators

Steam Generators are central element for electric power production.

Purpose – desired steam flow rate at specific temperature and pressure.

Heat from Gas Turbine, Boiler or hot water.

Intent – Generate electricity from Turbine Generator

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Water Tube Boiler - Basics

Section 2.3– Steam Generators

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Water Tube Boiler – Fire Heat

Section 2.3– Steam Generators

Complex Tubing Arrangement

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Section 2.3– Steam Generators

Water Tube Boiler – Water Heat

Nuclear

Heat Source - Sub Saturated High Pressure, High Temp Water

Generates - Saturated High Pressure Steam

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Water Tube Boilers – Steam Water Circulation

Section 2.3– Steam Generators

Natural Circulation Forced Circulation

Pump

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Water Tube Boilers – Steam Water Circulation

Section 2.3– Steam Generators

Superheated Steam

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Section 2.3– Steam Generators

Water Tube Boilers – Design

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Section 2.3– Steam Generators

Water Tube Boilers – Heat Recovery

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Fire Tube Boilers – Scotch Marine – 2 Pass

Section 2.3– Steam Generators

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Section 2.3– Steam Generators

Fire Tube Boilers – Scotch Marine

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Section 2.3– Steam Generators

Fire Tube Boilers – Firebox – Wood or Coal

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Section 2.3– Steam Generators

Fire Tube Boilers – Firebox – Gas or Liquid

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Section 2.3– Steam Generators

Fire Tube Boilers – Firebox – Single Pas

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Section 2.3– Steam Generators

Fire Tube Boilers – Firebox – Two Pass

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Section 2.3– Steam Generators

Fire Tube Boilers – Firebox – Three Pass

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Questions?

Section 2.3– Steam Generators