|| Absolute pressure
= Gauge Pressure + Atmospheric pressure (Atmospheric pressure
at 1,01325 bar, i.e. normal atmospheric pressure on the sea
level at 0°C).
saturated vapour or also of ebullient water under the same
in m3 by 1 kg of steam
|Mass density (or
Density) of the steam:
of the steam in a volume of 1 m3
of liquid water:
Heat, it is the quantity of heat contained in 1 kg of water
according to the selected temperature.
|Specific enthalpy of the steam:
||It is the total heat contained
in 1 kg of steam. It is the sum of the enthalpy of the various
states, liquid (water) and gas (vapour)
|Latent heat of
to transform 1 kg of ebullient water into vapour without change
of temperature (thermal energy necessary during the change
of state liquid to the state vapour)
Specific heat of steam:
of heat necessary to increase the temperature of one Celsius
degree on a unit of mass of 1 kg of steam.
of a fluid characterizes the resistance to the movement of
||Energy values in kcal/kg are given
on a basis of 4.1868 J, values not normally used.
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