Normalization of ACH50
I want to determine the Air change rate (allowable) for a case which I am modeling in energy plus...
As per standards, we have ACH50 values defined. I want to normalize these values for my case and check whether the Allowable ACH is in limit or not....For this, i should know about the Pressure difference between inside and outside....
observe the columns K,L,M,N,O,P,R,T
Column K: AFN Linkage Node Flow rate from Node 1 to Node 2 (Zone 1: Wall 1: Window 1)
Column L: AFN Linkage Node Flow rate from Node 2 to Node 1 (Zone 1: Wall 1: Window 1)
Column M: Node 1 to Node 2 Pressure Difference
Column N: AFN Linkage Node Flow rate from Node 1 to Node 2 (Zone 1: wall 4: Crack)
Column O: AFN Linkage Node Flow rate from Node 2 to Node 2 (Zone 1: wall 4: Crack)
Column P: Node 1 to Node 2 Pressure Difference
Column R: infiltration Volume
Column T: Air changes per hour
Now to calculate ACH which deltaP is to be considered ? Column M or Column P?
