[esp-r] Re: Custom ground profile

[Jon Hand]

If what you are trying to do is model a middle floor of an office building and want to setup
boundary conditions for the spaces above / below then you have several choices.

Setup a simple bounding zones and control them appropriately (see the exemplar in
technical features -> bounding zones above/below

Set the floor to a 'similar' boundary condition (if the office is warm the 'other side' is
assumed to be warm. Do the same for the ceiling.

If there is a dropped ceiling then consider whether the conditions within the ceiling
void are different from the office space below it - if so then model that as a separate
zone.

If there is a raised floor and the condition in the raised floor is different from the
office then model that as a separate zone.

-Jon Hand
________________________________________
From: esp-r-bounces at lists.strath.ac.uk [esp-r-bounces at lists.strath.ac.uk] On Behalf Of Sébastien Brideau [sebastien.brideau at gmail.com]
Sent: 09 May 2013 00:49
To: 'Satya'; 'ESP-r Users' Club'
Subject: [esp-r] Re: Custom ground profile

Hi Staya,

I think that you could maybe use an adiabatic boundary condition at the outside of the floor. You could also use the “prescribed static” boundary condition or the “similar to current”  boundary condition.

I don’t think that the ground profile would make much sense for your application.  Maybe other users with much more building simulation knowledge can let us know if I’m wrong on this, but I think that those three boundary conditions would give you a good approximation of what is actually happening.

Sebastien

From: esp-r-bounces at lists.strath.ac.uk [mailto:esp-r-bounces at lists.strath.ac.uk] On Behalf Of Satya
Sent: May-08-13 4:11 PM
To: ESP-r Users' Club
Subject: [esp-r] Custom ground profile

Hi

I am modelling the 11th (top most) floor of a building in order to run a simulation for resultant temperature distribution over 6 days.

I do not want to add 10 more floors to the model. What are my options?

So far the following has come to my mind:
i) use a custom ground profile: i have no idea how to do this, where should i look for information and for samples of such files?

ii) create another single large zone consisting of the 10 lower floors because I do not expect the temperature to drop sharply below the 10th floor.

Satya