[Bldg-sim] Peak Loads Question and one Random Question

[John Aulbach]

I'm sure others have better answers.

But.....

The names you create in the Wizard disappear in the Detailed Edit. Better to 
write them down, then translate them into the proper spaces/zones. I understand 
this problem may go away in eQuest 3.64, when it becomes available.

The other question has to to with LOADS and SYSTEMS peak sizes. LOADS is 
strictly the "barn" without any outside air or coil attached to it. The SYSTEMS 
outputs have a fan, coil, and ventilation attached. Even with No OSA, you have 
fan heat, coil loosses, and duct losses that will change your results.



John R. Aulbach, PE, CEM
Senior Energy Engineer

________________________________

PartnerEnergy
1990 E. Grand Avenue, El Segundo, CA 90245
W: 888-826-1216, X254| D: 310-765-7295 | F: 310-817-2745www.ptrenergy.com| 
jaulbach at ptrenergy.com



________________________________
From: Benjamin Jordan <benmichaeljordan at gmail.com>
To: bldg-sim at lists.onebuilding.org
Sent: Tue, August 17, 2010 12:46:51 PM
Subject: [Bldg-sim] Peak Loads Question and one Random Question


Hello everyone,

I have a question about some of the outputs from EQUEST that focus on space and 
peak loads. First of all, the random question. When I modeled my recent 
building, I created my 'spaces' so that each space would be it's own zone. This 
made it very simple for creating zone groups (applying templates) in the DD 
wizard, but I had a problem in that when I went into the detailed edit and named 
the spaces, these changes did not occur to the 'zone' names in the HVAC tab. 
Does anyone know a way to change these simultaneously or a better workflow 
suggestion (this one my first use of equest for the detailed edit)??

Now onto my 2nd question, I'm using Equest to calculate my HVAC loads (system 
and space). For 3 of the 5 systems, I used a generic OA/person but for two 
systems, I went ahead and put a set OA cfm(for a system) into one zone and put 
the other zones at zero. Anyways, here is my question. When looking at the 
outputs, I cannot figure why the difference between SV-A (System Design 
Parameters) and LS-A (Space Peak Loads Summary DESIGN DAY).For instance, in the 
system that I turned the OA air off in most of hte zones, I'm still getting 
differences in the results and do not understand this. Any help in explaining 
these differences would be greatly appreciated. Thanks!


      
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