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Is the expansion of superheated steam isothermal?
Expansion of steam in either the saturated or superheated state is generally not isothermal. When steam expands from a high pressure to a lower pressure the temperature will be reduced, unless energy is added during the process. When steam expands in an engine such as a steam turbine, the temperature reduction is greater than during free expansion
When the crank is at the inner dead centre in a horizontal reciprocating steam engine then the velocity of the piston will be?
Zero, because it's at the far reaching point before going back the other direction.
Which invention provided manufacturers with a new source of power for machines?
Steam engine
What to do about turbine rotor differential expansion?
my LP turbine differential expansion increase ,when rated gland steam temperature maintain.
What did people use before the steam engine?
Before the steam engine.... "people power" and "animal power."
Titanics technology titanics engine?
no comment
What powers the Titanic?
Engine: Two triple expansion reciprocating engines and one low pressure turbine engine. Boilers: 24 double ended and 5 single ended. Electricity: four 400Kw steam driven electric generators and 2 30Kw auxiliary generators.
Have steam engines been replaced?
The reciprocating steam engine is no longer in widespread commercial use.
How many cylinders did each of the titanic's engines have?
For propulsion - Two four-cylinder reciprocating triple-expansion steam engines for the two outboard wing propellers and one low-pressure turbine for the central propeller.
What was Titanic powered by?
Two triple expansion steam engines and a small turbine
George Stephenson's Rocket was an early example of What Form Of Steam Power?
The reciprocating steam engine (that is one that uses pistons in cylinders, moving in and out)
How does a steam engine differ from a steam turbine?
Technically a steam turbine is a particular type of steam engine. A classic steam engine usually refers to a reciprocating steam engine, which uses a piston and crank arrangement, where pressurised steam (from the boiler) forces the piston through its stroke, producing output power. A steam turbine produces power with pressurized steam expanding to high velocity, and impinging on turbine blades which produce rotational output power. A steam turbine can be considered similar to a windmill, although steam turbines typicaly rotate much faster, and often have many stages of steam expansion within a single machine.
What engines did the titanic use?
Two triple expansion steam engines and an exhaust turbine
Is the expansion of superheated steam isothermal?
Expansion of steam in either the saturated or superheated state is generally not isothermal. When steam expands from a high pressure to a lower pressure the temperature will be reduced, unless energy is added during the process. When steam expands in an engine such as a steam turbine, the temperature reduction is greater than during free expansion
Where were the engines located in the Titanic?
She was steam-powered. Titanic had two 4-cylinder steam reciprocating (piston)engines which were each two stories tall and drove the two wing screws (propellers). They each had a high-pressure cylinder, an intermediate-pressure cylinder, and two low-pressure cylinders. The steam ejected from the low-pressure cylinders of these two engines fed the low-pressure Parsons steam turbine which drove the center screw. The turbine was there to wring the last ounce of drive from the steam before it was sent off to the main condensers. The steam for the engines was provided by 29 coal-fired boilers; 24 of these were double-ended (meaning they had 3 furnaces on each side) and the remaining 5 were single-ended. The normal operating pressure for the boilers was around 215 psi. This engine layout is called a "triple expansion." Steam from the boilers entered the high-pressure cylinders of each reciprocating engine via the intake headers. From there, the steam went into the intermediate and then the low pressure cylinders. From the low-pressure cylinders, some steam was fed to the Parsons turbine and some was carried out via the exhaust headers. From here, the steam was sent off to the main condensers where it was condensed back into water and fed back to the boilers to repeat the cycle. While this was going on, valve lifters at the top of the cylinders were opened and closed by what's called an "eccentric link" to feed steam into the cylinders and eject it. Steam forced the pistons up and down, moving the connecting rods which turned the crankshafts, flywheels, and propeller shafts--similar to the way an automobile engine works. Titanic's engines produced around 45,000 horsepower altogether. The steam turbine is basically a series of fans arranged in a row. These fans are turned by the action of steam being forced through the blades, which provide the torque to turn the propeller shaft. As with the reciprocating engines, reduction gear was used to make the ship's screws turn fewer revolutions than the engines.
Did the manifest destiny cause the invention of the steam engine?
False. Manifest Destiny refers to the ideology justifying westward expansion of the young American Republic. The inception and invention of the steam engine was not a cause of this. That being said the steam engine enabled American industrialization and transportation infrastructure allowing for growth.
When the crank is at the inner dead centre in a horizontal reciprocating steam engine then the velocity of the piston will be?
Zero, because it's at the far reaching point before going back the other direction.
