Fire tube boiler vs water tube boiler

Fire tube boiler vs water tube boiler

Fire tube boiler vs water tube boiler

Today's lessons will be discussed about difference between fire tube boiler and water tube boiler that means Fire tube boiler vs water tube boiler. Usually two types of boiler is most commonly used in many industries and power generation.

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Fire tube



Water tube


1 In the fire tube boiler hot flue gases flow inside the boiler and water flow surrounded the tube. In the water tube boiler flue gases flow outside the tube and water go through inside the tube.
2 Fire tube boilers are low pressure or medium pressure boiler. Water tube boilers are high pressure boiler.
3 Boiler pressure range between 20-25 bar (Low pressure) and for medium pressure boiler pressure range about 25-80 bar.  Boiler pressure is up to 80 bar.
4 Fire tube boiler steam production rate is less than water tube boiler. Water tube boiler generates steam 3000kg/Hr Or more.
5 It says Internally fired boiler. It says Externally fired boiler.
6 Need more installation space Need less space for installation than Fire tube boiler.
7 Less skilled operator can operate this boiler. High skilled operator requires.
8 Cleaning and repairing is so many difficult. Cleaning and repairing is very easy.
9 Fire tube construction Is difficult Water tube construction is very simple.
10 Fire tube boiler efficiency is less than water tube boiler. Water tube boiler efficiency is very good.
11 Maintenance cost is very high and daily inspection require for boiler.  Comparable maintenance cost is low.
12 Transportation and erection is difficult Transportation and erection is easy.
13 Water circulation is not good Water circulation is good.
14 Low operating cost High operating cost
15 Fire tube boiler is light weight Water tube boiler is heavy weight.
16 Usually small power plants used fire tube boiler. Usually large power plant used water tube boiler.
17 Locomotive boiler, Lancashire boiler & Cochran Boiler. Benson boiler, Wilcox boiler, Babcock Boiler.

Fire tube boiler vs water tube boiler


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