[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 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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