Absolute pressure: |
Absolute pressure
= Gauge pressure + Atmospheric pressure (Atmospheric pressure
at 1,01325 bar, i.e. normal atmospheric pressure on the sea
level at 0°C). |
Boiling point: |
Temperature of
saturated vapour or also of ebullient water under the same
pressure. |
Specific volume
of steam: |
Volume occupied
in m3 by 1 kg of steam. |
Mass density (or
Density) of the steam: |
Specific mass
of the steam in a volume of 1 m3. |
Specific enthalpy
of liquid water: |
Sensible
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
vaporization:
|
Heat necessary
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 : |
Quantity
of heat necessary to increase the temperature of one Celsius
degree on a unit of mass of 1 kg of steam. |
Dynamic viscosity
: |
The viscosity
of a fluid characterizes the resistance to the movement of
the fluid. |
NB: |
Energy values in kcal/kg are given
on a basis of 4.1868 J, values not normally used. |
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