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Posted by emmanuel on February 10, 2002 at 05:22:36:
In Reply to: Re: Temperture of steam under pressure. posted by jtown on December 11, 2000 at 12:48:18:
: Steam charts exist in most any book with temperature vs pressure. They do not vary if the steam is at saturation. If you take the steam out of the boiler and pass it back through the firebox you get superheated steam that is at a higher temperature for the given pressure. This is done to protect steam turbine blades from liquid hitting them for one use. You can take steam back in mid-use and reheat for such. A boiler usually has pressure gages for the saturated part. You need temperature to get the amount of superheat.