Principle of steam heating
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Is steam heating based on changes in enthalpy? Does a higher enthalpy value mean better heating performance? For example, the enthalpy of steam at 1.6 MP and 215 degrees is 2829, which is higher than that of steam at 1.8 MP and 215 degrees; does this mean that using steam at 1.6 MP will reduce the amount of steam required?
The steam temperature is determined by the process requirements; it’s not adjusted arbitrarily.
Strictly speaking, steam heating makes use of the latent heat of steam, that is, the heat released when steam condenses into water. As for enthalpy, when superheated steam is used for heating and the material remains in gas form after heating, a very large amount of steam is actually required.