Difference between water tube and smoke tube boiler

 Difference between water tube and smoke tube boiler  -
Ans -
Smoke Tube Boiler
1.Lower rate of evaporatlon
2.Low pressure boller
3.Less compact
4. Gases passes through tubes and water surround tubes
5. Malnly used where low steam demand
6. Comparatlvely less control over quality of water.
7. More storage capacity of steam so that's why It was the timed boiler.

Water Tube Boller

1. Higher rate of evaporation
2. High pressure boiler aud P.
3. Compact In slze
4.Water passes through tubes, hence smoke surround tubes
5. Mainly used where ship demand is hlgh
6. Require good control over quallity of water and water treatment.
7. Steam retaining or holding capacity low, hence required continuous operation.
8. widens safety margin