[esp-r] Bi-directional Airflow Component for Vertical Air Exchange

[Mostapha Sadeghipour]

Thank you Jon for your answer to my previous question. Here is the next
question(s). :^)

I read several emails in esp-r 2006 emails archive related to using
the *bi-directional
door component in horizontal surfaces for vertical air exchange
*(here<http://lists.strath.ac.uk/archives/esp-r/2006/subject.html>).
Many
posters stated that door component is *defined for vertical surfaces* and
using this component *in horizontal positions *is *out of theoretical
scope*of the model, and thus the result would be
*meaningless*.

In contrary, the same idea is mentioned in Esp-r FAQs, under the *fictious
surfaces and zone
subdivision*<http://www.esru.strath.ac.uk/Programs/ESP-r_FAQ.htm#fictitious>as
a suggestion:

> "Occasionally it is necessary to divide a large space into several thermal
> zones. *A typical example of this is an atrium* or other high space with
> an air temperature gradient such that the perfectly mixed zone approach is
> not applicable...The flow across the opening as represented by this
> fictitious construction can be described by either scheduled air flows or by
> setting up a network flow (*often a door component is a good choice to
> allow bi-directional flow*)."


Then, which one is true? Use the bi-directional door component for vertical
air exchange or not?

If the answer to the question 1 is "NO", then how to define a bi-directional
component for vertical air exchange? Is there a bi-directional horizontal
airflow component available now?

Thanks in advance,

Mostapha Sadeghipour
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.strath.ac.uk/archives/esp-r/attachments/20100207/07aa0915/attachment.html