Boiler

Presented by:

Ahmad Hassan Khokhar2014-bt-txt-03

What is boiler?Boiler is a closed vessel in which the water

under pressure is transferred into steam by the

application of heat.•Working The chemical energy convert into the heatenergy by the combustion process whichIs absorb by the boiler

Types of Boiler

Fire Tube boiler

Water Tube boiler

Package Boiler

Others

Boiler

Fire Tube Boiler • Fire in tube or hot gas

send through the tube and boiler feed water in shell side.

• Fire tubes submerged in water

Apllication• It is used for small steam

capacities.

Marits• Low capital cost and fuel

efficient(82%)

Water Tube Boiler • Water flows through the

tubes and water tubes surrounded by hot gas

Application • For steam range 5.5 to

130 T/hr • Used for power plantMerits Used as high capacity steam

boiler

Package Boiler • It is comes as a complete

package that’s why it is called package boiler. It is generally shell type with fire tube design.

• Large number of small diameter tubes leading to good heat transfer.

• It has higher thermal efficiency compared to other types of boilers.