What is the purpose of smoke box drains?
What is the purpose of smoke box drains?
This is a pipe ending in a ring containing pin-sized holes, which creates a “ring” of steam jets. The steam forces out the smoke and draws further gases through the tubes. This in turn causes air to be drawn through the grate and firehole, making the fire burn hotter.
What is the smoke stack on a train called?
The chimney (smokestack or stack in American and Canadian English) is the part of a steam locomotive through which smoke leaves the boiler. Steam locomotive exhaust systems typically vent cylinder exhaust through the chimney to enhance draught through the boiler.
What is a smoke box on a train?
The smokebox is where steam from the cylinders and the smoke from the firebox in a steam locomotive come together to escape through the smokestack. When coal, wood or oil is burnt in the firebox, the smoke and hot gases escape through long tubes. These tubes are surrounded by the water in the boiler.
How do steam locomotive smoke deflectors work?
How it works. When a steam locomotive is moving forward, the air in front of the train is forced against the smoke box and its door. This air is then ‘spread’ apart and creates a partial vacuum around and behind the edge of the smoke box. So smoke deflectors don’t actually deflect the smoke, rather they deflect the air …
Why do steam locomotives puff smoke?
The puff, chuff, or cho of a steam locomotive is caused by the last pressure of steam in the cylinders being exhausted into the chimney. The purpose of this is to create draught through the firebox.
Why do steam trains have black smoke?
A The color of exhaust you see coming out of a steam locomotive’s smoke stack indicates how efficiently it is burning fuel. Darker or blacker smoke is an indication that small fuel particles (coal, wood, fuel oil, etc.) have made it through the firebox unburned and are therefore wasted.
Why do steam locomotives puff black smoke?
Why is there no chimney in the case of a locomotive boiler?
Why we don’t use chimney in a Locomotive Motive boiler? Because it is movable, due to the pressure difference the flue gas removed.
What are the elephant ears for on a steam locomotive?
Most of them were equipped with distinctive smoke deflectors, sometimes called “elephant ears,” on the front of the boiler. These were designed to help lift the smoke above the engine so the engine crew’s visibility wasn’t impaired when the train was drifting at light throttle.
Why do steam trains have smoke deflectors?
They are designed to lift smoke away from the locomotive at speed so that the driver has better visibility.
Why are steam locomotives black?
Black locomotives became common beginning in 1880, after coal burning engines made grime commonplace. Black was chosen because black locomotives didn’t show all the dirt and grime that covered the locomotive during normal use.
How does a smokebox work in a steam locomotive?
A smokebox is one of the major basic parts of a steam locomotive exhaust system. Smoke and hot gases pass from the firebox through tubes where they pass heat to the surrounding water in the boiler.
Do you use steam pipes inside or outside smokebox?
Inside steam pipes do not require lagging as the smokebox keeps them warm, but outside steam pipes are more common for locomotives with cylinders outside the frames. Some locomotive classes used both types depending on the date the batch was constructed (e.g. LNER Class V2 ).
What was the first locomotive in the UK to have smoke deflectors?
The first locomotive in the UK to have smoke deflectors installed was the Southern King Arthur class Sir Percivale, in 1927. ALCO’s FEF Series of steam locomotives owned by the Union Pacific were equipped with smoke deflectors for their high-speed trains.
What kind of steel is used in a smoke box?
Smokeboxes are usually made from riveted or welded steel plate and the floor is lined with concrete to protect the steel from hot char and acid or rainwater attack. To assist the passage of the smoke and hot gases, a blower is often used.
