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Boiler: Difference between revisions

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Boiler is a large cylindrical water tank onboard a steam locomotive. It has a cluster of tubes going through it, connecting the firebox at the back with the smokebox at the front. Hot air and smoke from the firebox go through these tubes, heating up the water inside the boiler, eventually causing it to evaporate to steam. Being a compressible gas in a pressurized chamber, steam accumulates in the boiler, increasing the pressure. The boiling point temperature of water depends on the amount of pressure in the boiler. The higher the pressure, the higher the boiling point. As the steam in the boiler cools down, it will condense back into water.
Boilers are large cylindrical water tanks found on {{pll|Steam Overview|steam-powered vehicles}}. They have a cluster of heating tubes going through, connecting a {{pll|Firebox|firebox}} at the back with a smokebox at the front of the vehicle. Hot air and smoke from the firebox go through these tubes, heating up the water inside the boiler, eventually causing it to evaporate. Since steam is compressible, so much of it can be generated in the limited volume of the boiler, that it becomes highly pressurized.


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Most steam engines have a safety valve that will release excess steam in case the boiler is overpressurized. It is advised to have just as much pressure in the boiler as needed to operate the engine, and not more, as the excess leads to wasting fuel.
Most steam engines have a safety valve that will release excess steam in case the boiler is overpressurized. It is advised to have just as much pressure in the boiler as needed to operate the engine, and not more, as the excess leads to {{pll|Driving Efficiency|wasting fuel}}.
 
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Maintaining nominal {{pll|Water Level|water level}} in the boiler is critical. Failing to do so can be catastrophic, from {{pll|Cylinder Cocks|damage to cylinders}}, to {{pll|Mechanical Powertrain Damage|boiler explosions}}. Water is fed to the boiler using an {{pll|Injector|injector}} and dumped using a {{pll|Water Level|blowdown valve}}.
 
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The boiling point temperature of water depends on the amount of pressure in the boiler. The higher the pressure, the higher the boiling point.
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{{See also|Water Storage|Injector|Servicing|Driving Efficiency}}
[[Category:Water Management|2]]
[[Category:Water Management|2]]

Latest revision as of 13:38, 12 March 2025

Boilers are large cylindrical water tanks found on steam-powered vehicles . They have a cluster of heating tubes going through, connecting a firebox at the back with a smokebox at the front of the vehicle. Hot air and smoke from the firebox go through these tubes, heating up the water inside the boiler, eventually causing it to evaporate. Since steam is compressible, so much of it can be generated in the limited volume of the boiler, that it becomes highly pressurized.

Most steam engines have a safety valve that will release excess steam in case the boiler is overpressurized. It is advised to have just as much pressure in the boiler as needed to operate the engine, and not more, as the excess leads to wasting fuel .

Maintaining nominal water level in the boiler is critical. Failing to do so can be catastrophic, from damage to cylinders , to boiler explosions . Water is fed to the boiler using an injector and dumped using a blowdown valve .

The boiling point temperature of water depends on the amount of pressure in the boiler. The higher the pressure, the higher the boiling point.