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I am not clear whether the supply fan volume is also too high or
just the return volume.<br>
<br>
If supply volume:<br>
- Check the SV-A to see if the altitude correction factor is 1.0.
If not, set your altitude to 0 on Project & Site -> Site
Data.<br>
- Check your system sizing ratio -- if you specify a supply flow and
a sizing ratio, the flow entered will be multiplied by the sizing
ratio.<br>
<br>
If just return volume -- you can specify a return fan volume on the
flow parameters tab of Air-Side HVAC -> Fans <br>
<br>
<img src="cid:part1.04050602.09030807@greensim.com" alt=""><br>
<br>
<div class="moz-cite-prefix">On 11/02/2016 10:41 AM, shilpa surana
wrote:<br>
</div>
<blockquote
cite="mid:CAOXv2e5+vNkTCRUf5Xhb=hQD3+aWRG6H3EXt=OeZZynKXCUXUA@mail.gmail.com"
type="cite">
<div dir="ltr">
<div>Simulation Community,</div>
<div><br>
</div>
<div>I have a question regarding the EMIT Baseline fan power
calculator, a tool provided to the energy modelers by RMI. I
have used the calculator to determine the baseline fan power.
I have entered the supply airflow from the autosized baseline
model, exhaust air flow as the outside air flow and the
appropriate supply fan ratio and return fan ratio in the
calculator. I used the inputs in kW/cfm provided by the
calculator in the Baseline model. However, the SVA report is
reporting higher return fan power as the model is auto sizing
the return flows higher than what the EMIT tool is using for
calculations. EMIT tool determines the return airflow by
subtracting exhaust airflow from the supply airflow. As a
result when I fill out the Section 1.4 table inputs, the
calculated total fan power from the software is higher than
the Baseline allowance. </div>
<div><br>
</div>
<div>Has anyone faced similar issues when calculating the
baseline fan power allowances?</div>
<div><br>
</div>
<div>Thanks,</div>
<div><br>
</div>
<div class="gmail_signature">
<div><strong><em>Shilpa Surana</em></strong></div>
</div>
</div>
<br>
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