Re: [EnergyPlus_Support] enthalpy of vaporization of water

["Michael J. Witte" <mjwitte@xxxxxxxx>]

In case you're interested in more detail, the EnergyPlus value for heat of 
vaporization [J/kg H20] used to convert a latent equipment load into kg of 
moisture is computed with the following equation:

    2500940.0 + 1858.95*T

Where:

T  = Zone dry bulb temperature [C]

Mike


On 8 Jun 2004, at 17:59, Rahul Chillar wrote:

> 2500.94KJ/kg would be most sutiable
> Since this value varies slightly with temperature you might want to look up
> ASHRAE handbook or steam tables to see the required value at the required
> temperature. Energy Plus used values compatible with ASHRAE Handbook of
> fundamentals.
> 
> hjunmoon <gt6102a@xxxxxxxxxxxxxxxx> wrote: 
> I am converting from latent heat of equipment (W) to rate of water 
> vaporized to a zone(kg/s).
> Does anyone know the value of enthalpy of vaporization of water used 
> in EnergyPlus?
> Thanks in advance,
> 
> Hyeun Jun Moon
> 
> 
> 
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> 
> Thanks 
> Rahul Chillar 
> Grad Student 
> Building Systems lab
> Univ Of Illinois Urbana Champaign
> 
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