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all temperatures above saturated steam is super heated steam.

"Superheated" steam isn't so much a scientific term as a technical term. Steam is more efficient the more energy it has (the molecules have more kenetic energy/are hotter).

During the height of steam locomotive development, the most fuel efficient way to accomplish this was to collect the steam, and then run it through a series of loops that are exposed to the exhaust gases of the original combustion, there-by further heating the steam.

Because the steam receives no further moisture, but received further heat energy, it is considered 'dry' steam. Superheat was a term coined by the engine builders as a way to promote the design as a way to sell their engines.

Because the superheater pipes carried steam pressure, they added additional equipment that had to be inspected as per ICC regulations. Because they also were exposed to the exhaust gas stream, they had a likelyhood of being erroded by the waste fuel being exhausted as well as the 1300+ degree combustion exhsut gasses.

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12y ago
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15y ago

The temperature of 20 psig steam is 258.8 ºF.

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11y ago

Approx. 425 Degrees F.

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10y ago

292.5 degF

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Q: At what temperature saturated steam turns into superheated steam?
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What is the temperature before you call it steam?

Steam has a minimum temperature of 212 degrees Fahrenheit or 100 degrees Celsius, because those are the temperature at which water boils under normal pressure. Once steam goes below those temperatures it turns back into water. Steam can be heated above those temperatures under certain conditions and is then called superheated steam.


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We know that steam is the gaseous phase of water, so it has water in it. It also has considerable thermal energy, too, as water must be heated quite a bit (at STP) to turn it into steam. It is the thermal energy in steam which we use to drive so many different things, like turbines to generate electric power.


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Yes. When the temperature rises in a pot full of water, the water begins to evaporate and create a steam. That's why steam is usually warm.


What is the process called in which water turns to gas?

The process when water changes into a gas is called evaporation. Evaporation occurs for pure water at 100 degrees celsius (-173 K) when water molecules begin to move around very rapidly and split up.


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Iceland is one of the most effective country in capturing geothermal energy and using i to make electricity. when water seeps into the cracks of the fissures, it is superheated by magma. the water turns into steam and escapes like a geyser and the steam rotates turbine blades creating electricity.


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