can saturated or dry steam be seen
DRY steam is superheated There is a temperature below which steam will start to condense into water droplets. This is called the saturation temperature, and it varies with the pressure of the steam. Steam that is exactly at its saturation temperature is called saturated steam. Steam that is below its saturation temperature contains droplets of moisture and is called wet steam. Steam that is above its saturation temperature is called superheated steam.
The unit of dry saturated steam is typically measured in temperature units such as degrees Celsius or Fahrenheit, as it represents the state of steam when it is at its saturation point and in equilibrium with liquid water at the same temperature.
If by dry steam you mean superheated steam then dry steam because it has a higher calorific value
Normally no, but if the steam is at a sufficiently temperature, and being viewed in darkness, then it may display its colour temperature. This can occur with some fumaroles. Technically, steam is the invisible phase of water vapour, but common use accepts the condensate phase, near boiling point, as steam.
When dry steam enters a wet steam filled vessel, it can cause the wet steam to condense as the dry steam releases its latent heat energy to the surrounding wet steam. This condensation increases the moisture content in the vessel and may lead to water accumulation.
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Safe, and effective.
That would depend on if the steam is superheated dry steam or not and if superheated dry steam its temperature. It should be possible to google "boiler equations" or "boiler design" to get details.
When dry and saturated steam is caused to expand in a nozzle,the actual measured steam flow is found to be greater than the theoretical calculated flow.This is due to the time lag in the condensation of steam & the steam remains in dry state instead of wet. Such a steam is called supersaturated steam. This time lag is cause due to the the face that, the converging part of the nozzle is to short and the steam velocity is too high that the molecules of steam have insufficient time to form droplets.
chem-dry
whenever there is presence of moisture(water content) in steam due to which one cannot refer that steam as dry steam...then this type of steam are termed as wet steam!!
Dry steam systems are a heating and coolingÊsystem that has steam that does not contain water droplets. Radiant systems are where heat and cooling systems where heat is exchanged through convection and conduction.Ê