Boiler Types: Advantages and Disadvantages

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Boiler Types Advantages and Disadvantages

• By Dane Haystead

Objective To inform the public about the pros
and cons of different types of boilers.
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Types of Boilers

• Shell boilers
• Water-tube boilers

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Shell Boilers

• Advantages
• Able to purchase whole plant as package.
• Able to build up a reserve of energy
• Construction is straight forward
• One furnace tube and burner
• Disadvantages
• Only 27000 kg/h steam output
• Large diameter cylinders limit pressure

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Water-tube Boilers

• Advantages
• Small water content
• Small diameter tubes and steam drum
• Able to produce superheated steam
• Customizable design (flexibility)
• Disadvantages
• More complex construction
• Complex control systems required

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Conclusion

• Shell boilers are for smaller scale applications
  than water-tube boilers
• Only need water-tube boilers when a high pressure
  or temperature is required (ie. Power stations)

References are available upon request
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