[Equest-users] Sizing Ratio

[Nick Caton]

If the 17 floors have a collective design cooling load of 100 tons, then
you'll end up with a system capacity of 1,700 tons by doing that to the
sizing ratio...  I don't think that's your intent!

 

If you wish for your heating/cooling capacities to be auto-sized with
some "fluff" to account for extreme heating/cooling conditions and
internal loads that your TMY-based model might not reflect, then by all
means give your auto-sized capacities a sizing factor higher than 1.  

 

If the modeled loads are 1/17 of what they should be in the end, I think
you would need to address the loads directly before trying to adjust the
system.

 

~Nick

 

 

 

NICK CATON, P.E.

SENIOR ENGINEER

 

Smith & Boucher Engineers

25501 west valley parkway, suite 200

olathe, ks 66061

direct 913.344.0036

fax 913.345.0617

www.smithboucher.com 

 

From: equest-users-bounces at lists.onebuilding.org
[mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of DongEun
Kim
Sent: Tuesday, June 28, 2011 12:09 AM
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] Sizing Ratio

 

Hi all,

 

Can anyone help me with this two question?

 

As I model a high-rise building using"Floor Muliplier", I have a floor
(middle) which actually represent the load for 17 floors.

 

Now I want to link this floor(s) to a certain HVAC system. 

 

Can I simply put "17" in  System Sizing > Sizing Ratio ?

 

Thank you in advance !

 

~DE

 

Kim, DongEun(DE) | Research Engineer, LEED AP
Annex R&D Institute, HIMEC(Hanil Mech. & Elec. Consultants)

 

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