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Mohamad,<br>
I am not sure what to recommend in the case of ESP-r but in the case
of TRNSYS, I would recommend writing (or contracting someone to write
for you) a model of the air/soil/plant and coupling it to the rest of
your simulation. Such new models (Types) can be written in Fortran or
C++ and can be integrated into the standard package relatively easily
if you have an appropriate compiler. Some years ago, we worked on an
energy simulation of a greenhouse and were provided (I believe) with
some algorithms for evapotransipration from the plants. It was a
hydroponic facility so we didn't need to worry about soil but I imagine
that algorithms exist there as well.<br>
Kind regards,<br>
David<br>
<br>
<br>
M F A Ramadan wrote:
<blockquote cite="mid:1241442479.49fee8afbe0f0@webmail.shef.ac.uk"
type="cite">
<pre wrap="">So, Dear Leen:
It seems that the most suitable coupled softwares are TRNSYS for indoor
simulations with TRNFLOW or COMIS for outdoor simulations.
But what about different plants effects; should TRNFLOW/COMIS or ESP-r stand for
the air-plant-soil system? I.e. water content in the soil and hence
evapotranspiration ...etc? or should i use the 'equation writer' for entering
such needed equations? If yes what about the validity and the compatability
with the whole TRNFLOW or COMIS model?
Excuse me Leen for the many questions.
Best regards,
Mohamad.
Quoting leen peeters <a class="moz-txt-link-rfc2396E" href="mailto:l.f.r.peeters@gmail.com"><l.f.r.peeters@gmail.com></a>:
</pre>
<blockquote type="cite">
<pre wrap="">Mohamad,
Well ... for the programs I am familiar with:
TRNSYS will need to be coupled to TRNFLOW or COMIS in order to correctly
account for the influence of outdoor air velocity (and thus pressure)
variations. The coupling is possible, however it will require paying the
license of both programs. I estimate a 3500 euros for both. On the other
hand, it has a good interface. It runs smoothly in a windows environment.
And it has an 'equation writer', which is in fact a very easy way to write
some simple models without going into the code.
ESP can handle the fluid flow levels, but I would suggest to use it on a
linux-platform for reasons of stability. Don't be affraid of the
sometimes less fancy interface. There is a good and activce ESP community.
ESP is free of charge. And parts of the code are very well documented, which
could help you understanding the models in case the 'help' is not detailed
enough. However, it is generally known as rather hard to learn to work with,
a positive and motivated spirit can manage it in a reasonable time.
I do not know whether IDA-ICE can handle wind induced flows. It is mainly
developped for evaluations of energy use and thermal comfort in buildings.
However I have never worked with EnergyPlus, it has some methods for
estimation of wind speed as a function of height. As it is developed in the
US, I suppose it has a well-worked out calculation strategy for ventialtion
and air flows in buildings.
There are many building energy simulation codes, check out the document that
compares many of the codes:
</pre>
</blockquote>
<pre wrap=""><!----><a class="moz-txt-link-freetext" href="http://apps1.eere.energy.gov/buildings/tools_directory/pdfs/contrasting_the_capabilities_of_building_energy_performance_simulation_programs_v1.0.pdf">http://apps1.eere.energy.gov/buildings/tools_directory/pdfs/contrasting_the_capabilities_of_building_energy_performance_simulation_programs_v1.0.pdf</a>
</pre>
<blockquote type="cite">
<pre wrap="">Note that the document is a few years old already. Some of the latest
developments of the different codes will not yet be incorporated in the
tables.
regards,
Leen
On Sat, May 2, 2009 at 5:36 PM, M F A Ramadan
<a class="moz-txt-link-rfc2396E" href="mailto:M.Fahmy@sheffield.ac.uk"><M.Fahmy@sheffield.ac.uk></a>wrote:
</pre>
<blockquote type="cite">
<pre wrap="">Many thanks Leen for your concern:
My case should consider almost all outdoor effects. This include shading
from
buildings and trees, wind, temperatures, humidity, plant
eveportanspiration;
i.e. almost a complete environmental details.
And yes, the aim to model the possible impact/influence of a dynamically
varying
outdoor situation on the indoor environment.
What is your suggestions?
Regards,
Mohamad.
-------------
Quoting leen peeters <a class="moz-txt-link-rfc2396E" href="mailto:l.f.r.peeters@gmail.com"><l.f.r.peeters@gmail.com></a>:
</pre>
<blockquote type="cite">
<pre wrap="">Mohamad,
could you describe the problem in some more detail?
Is the aim to model to possible impact/influence of a dynamically
</pre>
</blockquote>
</blockquote>
<pre wrap="">varying
</pre>
<blockquote type="cite">
<blockquote type="cite">
<pre wrap="">outdoor situation on the indoor environment?
What is it you want to take into account? Shading/wind/outdoor
temperatures/....
The complexity of your problem or even the parameters you might want to
consider will influence the selection of the software that one will
recommend.
So the more specific you could be, the better suited the answer you will
</pre>
</blockquote>
<pre wrap="">get
</pre>
<blockquote type="cite">
<pre wrap="">...
Kind regards,
Leen
On Wed, Apr 22, 2009 at 11:11 PM, M F A Ramadan
<a class="moz-txt-link-rfc2396E" href="mailto:M.Fahmy@sheffield.ac.uk"><M.Fahmy@sheffield.ac.uk></a>wrote:
</pre>
<blockquote type="cite">
<pre wrap="">Dear all:
I wonder if any one used or heard about softwares that couples outdoor
(urban) and indoor thermal (comfort and/or energy) analysis in one
</pre>
</blockquote>
<pre wrap="">package.
</pre>
<blockquote type="cite">
<pre wrap="">
Any guide would be appreciated.
Regards,
Mohamad.
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</blockquote>
</blockquote>
<pre wrap="">
</pre>
</blockquote>
</blockquote>
<pre wrap=""><!---->
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