Firebox/hu: Difference between revisions
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Fireboxes | Fireboxes are chambers found on {{pll|Steam Overview|steam vehicles}}, where {{pll|Fuel Storage|fuel}} is burned in order to boil {{pll|Water Level|water}} in {{pll|Boiler|boilers}}. A firebox is positioned such so that it is partly inside a boiler, but also has a cluster of heating tubes extending through the boiler, to a chimney at the other end, where the hot air and smoke pass through. | ||
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Coal-powered fireboxes have a firedoor, which can be open to {{pll|Shovel|shovel}} coal inside. The door should be kept closed otherwise, to prevent blowback. Blowback is a dangerous event where exhaust flow is reversed, drawing fire into the | Coal-powered fireboxes have a firedoor in the vehicle's {{pll|Rail Vehicle Types|cab}}, which can be open to {{pll|Shovel|shovel}} coal inside. The door should be kept closed otherwise, to prevent blowback. Blowback is a dangerous event where exhaust flow is reversed, drawing fire into the cab, potentially catastrophically harming the crew. It happens upon entering tunnels with the firedoor open. | ||
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Firebox temperature is controlled by the amount of coal and airflow inside it. Simply having no more coal to burn will cause the firebox to cool down, and adding more coal will warm it up if the airflow is sufficient. The amount of airflow depends on whether | Firebox temperature is controlled by the amount of coal and airflow inside it. Simply having no more coal to burn will cause the firebox to cool down, and adding more coal will warm it up if the airflow is sufficient. The amount of airflow is key, and depends on whether there is {{pll|Regulator|steam being admitted to the cylinders}}, but can also be adjusted by the {{pll|Blower & Damper|blower and damper}} controls. | ||
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Having the firebox full to the brim with coal is not always the best choice. Too much coal with too little airflow negatively affects {{pll|Driving Efficiency|fuel efficiency}}, resulting in a lot of coal particles getting spewed out | Having the firebox full to the brim with coal is not always the best choice. Too much coal with too little airflow negatively affects {{pll|Driving Efficiency|fuel efficiency}}, resulting in a lot of coal particles getting spewed out the chimney before fully burning. This is what makes the exhaust dark. When coal amount is proportional to available airflow, however, coal burns cleaner and the exhaust color is more bright. | ||
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Revision as of 12:50, 12 March 2025
Fireboxes are chambers found on steam vehicles , where fuel is burned in order to boil water in boilers . A firebox is positioned such so that it is partly inside a boiler, but also has a cluster of heating tubes extending through the boiler, to a chimney at the other end, where the hot air and smoke pass through.
Coal-powered fireboxes have a firedoor in the vehicle's cab , which can be open to shovel coal inside. The door should be kept closed otherwise, to prevent blowback. Blowback is a dangerous event where exhaust flow is reversed, drawing fire into the cab, potentially catastrophically harming the crew. It happens upon entering tunnels with the firedoor open.
A tűzszekrény belsejében uralkodó hőmérsékleti viszonyokról pontos képet a hőmérőre rátekintéssel kaphatunk. Tüzelni úgy kell, hogy az éppen a vontatási igényeknek megfelelő gőzfejlesztést eredményezze. Alacsony hőmérséklet lecsökkent gőzfejlesztési képességet jelent, míg a túlszított tűz esetén a szén nagy mértékben pazarlódik.
Firebox temperature is controlled by the amount of coal and airflow inside it. Simply having no more coal to burn will cause the firebox to cool down, and adding more coal will warm it up if the airflow is sufficient. The amount of airflow is key, and depends on whether there is steam being admitted to the cylinders , but can also be adjusted by the blower and damper controls.
Having the firebox full to the brim with coal is not always the best choice. Too much coal with too little airflow negatively affects fuel efficiency , resulting in a lot of coal particles getting spewed out the chimney before fully burning. This is what makes the exhaust dark. When coal amount is proportional to available airflow, however, coal burns cleaner and the exhaust color is more bright.
Different types of shovels have different characteristics when it comes to feeding the firebox.
Coal in fireboxes can be dumped manually, with the coal dump lever found next to the firedoor.