Steam Overview/en: Difference between revisions
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Steam is used to power {{pll|Electricity|electrical}} and {{pll|Air Brake System Overview|braking}} systems, but primarily to propel the vehicle. Through a series of components, such as the {{pll|Regulator|regulator}}, {{pll|Regulator|steam chest}}, {{pll|Cutoff|cutoff}}, and {{pll|Cylinder Cocks|cylinders}}, the steam can push the engine pistons. With every cycle, after pushing the pistons, used steam is released outside through the blast pipe. This improves {{pll|Blower & Damper|airflow}}, further feeding the fire. | Steam is used to power {{pll|Electricity|electrical}} and {{pll|Air Brake System Overview|braking}} systems, but primarily to propel the vehicle. Through a series of components, such as the {{pll|Regulator|regulator}}, {{pll|Regulator|steam chest}}, {{pll|Cutoff|cutoff}}, and {{pll|Cylinder Cocks|cylinders}}, the steam can push the engine pistons. With every cycle, after pushing the pistons, used steam is released outside through the blast pipe. This improves {{pll|Blower & Damper|airflow}}, further feeding the fire. | ||
{{pll|Water Storage|Water}} and {{pll|Fuel Storage|coal}} are sometimes carried in a secondary unit, called the {{pll|Rail Vehicle Types|tender}}. Coal is transferred to the firebox by manual {{pll|Shovel|shoveling}}, whereas water is fed to the boiler using an {{pll|Injector|injector}}. An adequate amount of water must be maintained in the boiler at all times, to avoid {{pll| | {{pll|Water Storage|Water}} and {{pll|Fuel Storage|coal}} are sometimes carried in a secondary unit, called the {{pll|Rail Vehicle Types|tender}}. Coal is transferred to the firebox by manual {{pll|Shovel|shoveling}}, whereas water is fed to the boiler using an {{pll|Injector|injector}}. An adequate amount of water must be maintained in the boiler at all times, to avoid {{pll|Damage Overview | ||
|boiler explosion}}. | |boiler explosion}}. | ||
Revision as of 13:49, 12 March 2025
Motorized rail vehicles with steam powertrains are powered by steam, produced onboard by burning fuel to boil water.
To run a steam engine, coal or oil are burned in a firebox. This heats up water in the boiler, eventually turning it into highly pressurized steam.
Steam is used to power electrical and braking systems, but primarily to propel the vehicle. Through a series of components, such as the regulator, steam chest, cutoff, and cylinders, the steam can push the engine pistons. With every cycle, after pushing the pistons, used steam is released outside through the blast pipe. This improves airflow, further feeding the fire.
Water and coal are sometimes carried in a secondary unit, called the tender. Coal is transferred to the firebox by manual shoveling, whereas water is fed to the boiler using an injector. An adequate amount of water must be maintained in the boiler at all times, to avoid boiler explosion.
Steam engines have complicated mechanisms that need to be properly lubricated to function.
Firing up a steam engine from scratch is costly and can take a very long time. In Derail Valley, this startup process is sped up when the vehicle is stationary, simulating it being done in the most fuel efficient manner, until the boiler pressure reaches about 80% of its maximum capacity. The time scaling is there to drastically reduce waiting, but can be adjusted by a difficulty setting titled Steam Startup.