<div dir="ltr"><div dir="ltr"><p class="MsoNormal">Dear all TRNSYS users,<span></span></p>
<p class="MsoNormal"><span> </span></p>
<p class="MsoNormal">Please ignore my last email.<span></span></p>
<p class="MsoNormal"><span> </span></p>
<p class="MsoNormal">I am modeling an AHU system in TRNSYS for heating
applications of a residential building. To calculate the air flows between
thermal zones, from outside the building such as infiltration and due to
ventilation system, I am going to use TRNFlow. The main components in the
ventilation system are: supply and return fans which can be variable or
constant speed, heating coil and ducting system. To model these components in
TRNFlow, I need to determine the size and capacity of the heating coil, as well
as the head and flow rate of the supply fan.<span></span></p>
<p class="MsoNormal"><span> </span></p>
<p class="MsoNormal">How can I estimate the capacity of the heating coil and
supply fan? Using TRNBuild, should I define first the infiltration, ventilation
and ideal heating regimes, and then calculate the building's heating load?<span></span></p>
<p class="MsoNormal"><span> </span></p>
<p class="MsoNormal">Also, is it possible to connect <b>Type 151</b> and <b>Type56-TRNFlow</b>?
Because, I'm going to set up a VAV system in TRNFlow in such a way that the
speed of the supply fan component changes according to the amount of heat
required in each thermal zone.<span></span></p>
<p class="MsoNormal"><span> </span></p>
<p class="MsoNormal">The last question I have is, I would like to know how to
estimate the air coupling between thermal zones if I want to evaluate air
transfers between them using the "coupling" regime. Are there any
equations for this?<span></span></p>
<p class="MsoNormal"><span> </span></p>
<p class="MsoNormal">Best Regards,<span></span></p>
<p class="MsoNormal">Ali<span></span></p></div></div>