[Greenbuilding] PHPP Flow Rates
John Salmen
terrain at shaw.ca
Tue Mar 5 12:13:27 CST 2013
Maximum flow rate is generally the maximum of your supply and exhaust
requirements (based on occupancy, assumed volumes, leakage, etc.) As I
understand it PHPP however calculates this just as volume (interior building
volume) multiplied by .3 ACH (air changes/hour) multiplied by 1.3 (real
world factor?). So oversizing by 1.5 keeps it in the real world and ensures
adequate ventilation.
-----Original Message-----
From: Greenbuilding [mailto:greenbuilding-bounces at lists.bioenergylists.org]
On Behalf Of Bob klahn
Sent: March-04-13 7:21 PM
To: Green Building
Subject: Re: [Greenbuilding] PHPP Flow Rates
Eli,
I can't answer your question directly. I am dealing with a situation where
I'm pretty sure the ERV flow is low and am equally frustrated.
However, I recall a recent posting by Joe Lstiburek saying that they
oversized ERV's by 150%.
Given what my memory has done to me lately, you might want to find that
posting for the rest of the story. Check the BSC site.
I hope the lead helps. This thread should be interesting.
Bob
On 3/4/2013 4:38 PM, Eli Talking wrote:
> I am trying to make sense of Ultimate Air spreadsheet describing how
> to size ERV flow rates. It references the Ventilation maximum flow
> rate as determined from PHPP.
>
> Does anybody know how to find Ventilation maximum flow rate PHPP?
>
> Eli
>
>
> _______________________________________________
> Greenbuilding mailing list
> to Send a Message to the list, use the email address
> Greenbuilding at bioenergylists.org
>
> to UNSUBSCRIBE or Change your List Settings use the web page
> http://lists.bioenergylists.org/mailman/listinfo/greenbuilding_lists.b
> ioenergylists.org
>
_______________________________________________
Greenbuilding mailing list
to Send a Message to the list, use the email address
Greenbuilding at bioenergylists.org
to UNSUBSCRIBE or Change your List Settings use the web page
http://lists.bioenergylists.org/mailman/listinfo/greenbuilding_lists.bioener
gylists.org
More information about the Greenbuilding
mailing list