[Equest-users] modeling DOAS

[Xavier García Casals]

Dear eQuest users,
I've been trying to model a DOAS that supplies ventilation air to the 
other HVAC systems.
In order to keep the ECO & ERV capabilities, I use PSZ for the DOAS.
After quiete a long time of messing arround with the different options I 
could imagine, I came along a solution that seems to more or less match 
the expected results. However the cooling & heating consumptions are a 
bit lower than what should be (comparison case without DOAS).
The dummy zone used for the DOAS introduces no demands (LS-E report) nor 
system loads (SS-A report). However, I observe in the SS-K report that 
the dummy zone has a temperature slightly different than outside 
temperature that could explain the differences between the calculated 
and expected cooling & heating consumption (an in fact de DOAS has a 
design cooling capacity different from zero in spite of my efforts to 
make it null). The DOAS fans do not introduce any loads.
Any insight / sugestion on how to introduce the DOAS without any impact 
on the calculation accuracy of heating and cooling demands?
Thanks,
-- 

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*Xavier García Casals*

 

*Sistemas** Solares, Eficiencia Energética e Ingeniería Bioclimática** *

*AIGUASOL** INGENIERÍA*

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Sistemes Avançats d'Energia Solar Tèrmica SCCL

C/ Palermo, 17. Bajos dcha. 28043 Madrid

Tel: (+34) 91 142 27 88

 

C/ Roger de Llúria,  29 3r 2a 08009 Barcelona

Tel: (+34) 93 342 47 55  Fax: (+34) 93 342 47 56

 

Mobil: 660 22 94 45

xavier.garcia at aiguasol.coop <mailto:xavier.garcia at aiguasol.coop>

http://www.aiguasol.coop <http://www.aiguasol.coop/>

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