[EnergyPlus_Support] different euation of Effective Leakage Area.

["kh_woo" <kh_woo@xxxxxxxxxxx>]

Usually the units of Effective Leakage Area is cm2 in SI 
In EnergyPlus AirflowNetwork ELA means m2/m2, which is the ratio of the 
leakage area of the associated surface.

Comparing with the equation in the ASHRAE HANDBOOK-Fundamentals 2005 
p27.13, there is no figure on the density of air.
Is the equation correct? 
I could not find any explanations about this equation in the references.

Please tell me how this equation made and why do EnergyPlus use the 
units of m2/m2.

Thank you 


Kyung-hun   
 





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