[TRNSYS-users] natural ventilation

[Jean Marais via TRNSYS-users]

Adnan, windows are building envelope components and won't ventilate unless
you "tell them to". If transflow is available to you then use it, otherwise
a link to COMMIS or CONTAM may be required.

However, there are simpler ways of modelling outdoor air entering a space.
How you model natural window ventilation depends on your simulation goals.

Often a data driven statistical approach is more appropriate than deciding
when, how much and for how long a window will remain open.

Needless to say that we usually use hourly averaged windspeed data for
simulations that can vary hugely from day to day and year to year.

Before you dive into the complex subject of human driven window
ventilation, take a step back and review what your goals are.

Best regards,

Jean Marais
On 28 Dec 2016 07:26, "adnan rasheed via TRNSYS-users" <
trnsys-users at lists.onebuilding.org> wrote:

> Hello everyone,
>
> i am using type-56 for modelling a single zone building having large
> windows on east and west side walls of the building. i want to simulate it
> for day time opening both windows to allow cross natural ventilation.
>
> 1- i use window type manger schedule and select window without glazing id
> #10001. but not get required result? i think i need to considered wind
> speed and direction? how i don't know..
>
> 2- From the previous emails of this forum i came to know may be i need to
> use TRNFlow  or comics??? i have TRNSFlow buildin with TRNBUild i used it
> by giving required inputs but no change in results (same as without using
> TRNFlow)
>
> any suggestions?
>
>
>
> Regards
> Adnan
> PhD researcher
>
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