[esp-r] Re: zonal model - question

[Jon Hand]

Using the existing 'building blocks' of ESP-r it has been possible to represent
a single physical space as several thermal zones and use a mass flow network
to allow air to move between the zones based on pressure and buoyancy.

The issue is that higher resolution in air flow reduces the resolution of radiant
transfer as solar raditaion passes between the thermal zones and, for example,
the left wall of the room does not directly see the right wall of the room for
radiant transfer because there are intermediate surfaces/zones between them.

Typically this has been done for atria which might be separated into 3-4 vertical
zones and a left and right half.  It would be really good to gain confidence in
such a model via a parallel CFD assessment.  ESP-r supports 3D transient
CFD with evolving boundary conditions so you would not necessarily need
to use another tool for comparison.

-Jon Hand
________________________________________
From: esp-r-bounces at lists.strath.ac.uk [esp-r-bounces at lists.strath.ac.uk] on behalf of Romana Antczak [romana.antczak at pg.gda.pl]
Sent: 02 October 2013 10:20
To: esp-r at lists.strath.ac.uk
Subject: [esp-r]  zonal model - question

Dear ESP-r users,

I have a question, is it possible in ESP-r to model a single room with
SEVERAL control volumes (thermal zones) connected with each other by an
airflow
network in order to create a zonal model?

Zonal models are often referred in literature as an intermediate approach
between lumped models and CFD models. Is it possible to create such model
in ESP-r by default (without additional code contribution)?

Kind regards,
Romana Antczak


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