[TRNSYS-users] Ventilation schedule

[Issam Sobhy via TRNSYS-users <trnsys-users@lists.onebuilding.org>]

Dear all,

I have a query regarding ventilation schedule setting in Type 56 of TRNSYS.  I want to establish a simulation with air change scenarios in winter and summer.

In winter (Nov ---> April): the rate of air change is 1 vol/h from 8 a.m to 6 p.m

In summer (May ---> Oct): the air change rate is 4 vol/h, when the ambient temperature is lower than the air temperature inside the zone, otherwise the air exchange rate ventilation must be zero?

Please find enclosed the TPF of a single thermal zone in which i wrote the equation, but i do not know yet how to do this for the summer ventilation condition. 

Do you have any idea how to deal with this type of execution?

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Kind Regards 
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Issam SOBHY, PhD Student

Attachment: Essai_ACH - Copie.rar
Description: application/rar