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Hi Juanita<br>
<br>
ESP-r includes the thermal mass of all constructions and, yes,
adding furnishings will increase the thermal mass. Before using a
model, we often carry out a quick pulse test to determine the
cool-down rate. This gives us a target for additional thermal mass.
A pulse test involves heating up (or cooling down) one or more
spaces until a reasonable temperaure difference exists with outside
(10 C for example) and then observing the cool down (or heat up)
rate.<br>
<br>
Also, make sure that you have not inadvertently isolated thermal
mass by, for example, placing an insulation layer at an incorrect
location.<br>
<br>
Regards,<br>
<br>
Joe<br>
<pre class="moz-signature" cols="72">__
Professor J A Clarke
Director, ESRU and BRE Centre of Excellence
Mechanical & Aerospace Engineering
James Weir Building
75 Montrose Street
University of Strathclyde
Glasgow G1 1XQ
email: <a class="moz-txt-link-abbreviated" href="mailto:joe@esru.strath.ac.uk">joe@esru.strath.ac.uk</a>
phone: +44 (0)141 548 3986
mobile: +44 (0)7800903808
</pre>
<div class="moz-cite-prefix">On 17/07/19 10:01, Juanita Solano
Guzmán wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAP_Kyt6rGs3sR2vNPie8-CAm-YvBHr7hQQh+Y2XYrahk37F9cw@mail.gmail.com">
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<div>Good morning,</div>
<div><br>
</div>
<div>I am currently working on a model from a single office in
in one building and by looking at my results, I see that I am
lacking thermal mass. Based on some general knowledge I have
from the construction of this building, I have added some
layers of cement in the ceiling and the floor. I don´t know
how the internal walls have been constructed, but I have also
added a layer of cement facing the inside of the room. <br>
</div>
<div><br>
</div>
<div>In general, after multiple attempts I have not been able to
add enough thermal mass and I have some undesired temperature
peaks and lows. Regarding this I have the following questions:
<br>
</div>
<div><br>
</div>
<div>1) Does ESP-r consider the thickness of the walls or are
they "thin surfaces"? that means that it does not consider any
heat being stored in these constructions. Same would go for
the ceiling and floor?<br>
</div>
<div>2) Without adding any phase-change materials, is there a
way to add thermal mass in the office? Does adding furniture
help or are they just for visual purposes?</div>
<div><br>
</div>
<div>Thank you very much in advance.</div>
<div><br>
</div>
<div>Greetings,</div>
<div>Juanita <br>
</div>
</div>
<br>
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