Superheated Steam: What Does It Look Like in a Steam Turbine?

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Discussion Overview

The discussion revolves around the appearance and characteristics of superheated steam when used in steam turbines. Participants explore the nature of superheated steam, its visibility, and safety concerns associated with it.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • Some participants describe superheated steam as gaseous water above its boiling point, noting that pure steam is invisible and colorless.
  • Others argue that superheated steam can appear white due to the presence of water vapor droplets, similar to clouds produced by steam locomotives.
  • One participant emphasizes that superheated steam cannot coexist with liquid water, stating that all liquid must evaporate before superheating can occur.
  • Concerns are raised about the dangers of superheated steam, with a participant warning about the risks of burns and suggesting precautions for safety.

Areas of Agreement / Disagreement

Participants express differing views on the visibility of superheated steam, with some asserting it is invisible while others suggest it can appear white under certain conditions. The discussion remains unresolved regarding the definitive appearance of superheated steam.

Contextual Notes

There are limitations in the discussion regarding the definitions of superheated steam and the conditions under which it may appear visible or invisible. The assumptions about the state of steam and water in turbines are not fully explored.

er.shashank
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Can someone tell me how Superheated Steam looks like?
when we are using it in a steam turbine?
 
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Superheated gas is gas that has been raised above its boiling point.
The amount or degree of superheat is the number of degrees above boiling.

Superheated steam is gaseous water that is above its boiling point. Pure steam is invisible in that it is colourless like air. However it often contains doplets of water vapour and appears white in colour as in the clouds you see given off by steam locomotives.

go well
 
I can't tell you what it looks like but if it starts to leak it sounds like a wailing banshee.
 
thank you very much studiot..
 
Studiot said:
Superheated steam is gaseous water that is above its boiling point. Pure steam is invisible in that it is colourless like air. However it often contains doplets of water vapour and appears white in colour as in the clouds you see given off by steam locomotives.

I just wanted to clear up that superheated steam is invisible. You won't be seeing any clouds if it's superheated, as superheated steam cannot exist alongside liquid water.

First, ALL the liquid water has to turn into steam before you can hope to superheat it. You can accomplish this by heating the water until all has evaporated, or by using a "steam drum", which is what they do at power plants. The steam drum separates the liquid water from the steam before passing the steam onto the superheaters.
 
I just wanted to clear up that superheated steam is invisible.

That is why it is dangerous to walk around steam lines. Keep a broom handle out in front of you to check for leaks. Superheated steam is no joke. It can burn you severely in no time at all.

Matt
 

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