Jen,
Speaking very generally and only from my own experience,
developing a model of a physical process inherently involves
making some simplifying assumptions. A model developer can choose
to build in fewer assumptions and give the end user more
flexibility in implementing the model. The trade-off, however is
in the ease of implementing the model; the user will have to
specify more things like the inlet/outlet connections or the
controls. Alternatively, a model developer can build in more
assumptions and make the end user's life simpler. In so doing,
however, they take away some of the model's flexibility.
I find that in general, building simulation software tools
occupy some place on the spectrum between ultimate ease of use and
ultimate flexibility. There are building models out there in which
you specify the postal code, the building's area and its general
use category (school, office, etc.) and the model will give you a
prediction of how much energy it thinks such a building would use
annually. Very easy to implement, not very flexible. TRNSYS is, by
design, at the very flexible end of the spectrum. In my experience
if you are modeling conventional buildings with conventional (and
more to the point conventionally controlled) buildings then Trnsys
is probably not a very good option. If, however, you are modeling
a system that needs to be put together component by component so
that you can specify the specific connections and controls that
you want to use then Trnsys is a good option.
As a side note, we use a hybrid approach when we are dealing with a more or less conventional building that has an innovative central plant. In that case we will sometimes generate the building's heating and cooling loads in other software tool and then impose them on a central plant system that we have modeled in Trnsys.
kind regards,
David
helloI am consider simulating solar cooling based chiller to compare with conventional ones.
On Monday, November 8, 2021, 10:48:23 AM EST, Jeff Thornton <thornton@tess-inc.com> wrote:
Jen - it would really help to know what you’ll be modeling in TRNSYS and what other tools you are considering.
Jeff
Sent from my iPhone
On Nov 8, 2021, at 8:17 AM, Jen parken via TRNSYS-users <trnsys-users@lists.onebuilding.org> wrote:
_______________________________________________Hello everyone.I would like to know if there is any resource define the difference between using TRNSYS and other modeling tools.I mean I am trying to convince my supervisor to use TRNSYS because I believe it is more accurate but I really need to defend my point with more accurate and specific answers .thanksJen
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-- *************************** David BRADLEY Principal Thermal Energy Systems Specialists, LLC 3 North Pinckney Street - suite 202 Madison, WI 53703 USA P:+1.608.274.2577 d.bradley@tess-inc.com http://www.tess-inc.com http://www.trnsys.com