Enthalpy of a system is defined as the mass of the
system, m, multiplied by the specific enthalpy of the system, h i.e.
Specific enthalpy of a working fluid, h, is a property of the fluid
which is defined as:
u= Specific internal energy
v= Specific volume
Specific enthalpy has the same dimension as [energy/mass]. The SI unit of specific enthalpy is J/kg. Other units are: