<div dir="ltr">Hello Everyone,<div><br></div><div>I am doing a project on type 94 (PV Module) . I have to find dust effect on PV module's Efficiency. Please suggest me how to enroll it with PV module .</div><div><br></div><div><br></div><div>Kind Regards</div><div>Amit Verma</div><div><br></div></div><div id="DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2"><br>
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</table><a href="#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2" width="1" height="1"></a></div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Jan 25, 2018 at 6:00 AM, <span dir="ltr"><<a href="mailto:trnsys-users-request@lists.onebuilding.org" target="_blank">trnsys-users-request@lists.onebuilding.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Send TRNSYS-users mailing list submissions to<br>
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<br>Today's Topics:<br>
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1. airchange between zones (Alex moreno)<br>
2. Re: airchange between zones (David BRADLEY)<br>
<br><br>---------- Forwarded message ----------<br>From: Alex moreno <<a href="mailto:alamoreno19@hotmail.com">alamoreno19@hotmail.com</a>><br>To: trnsys_users <<a href="mailto:trnsys-users@lists.onebuilding.org">trnsys-users@lists.onebuilding.org</a>><br>Cc: <br>Bcc: <br>Date: Wed, 24 Jan 2018 14:22:02 +0000<br>Subject: [TRNSYS-users] airchange between zones<br>Hi<br>
<br>
I have a doubt when i modeling a single family building with two floors,<br>
how i can connect the airchange between of two zones (first floor and<br>
second floor)<br>
<br>
another doubt is:<br>
<br>
Firstly i simulated the two floors us one zones, but now i simulate the<br>
buildign us two zones, the results of heating differ 2% respec of one<br>
zone building and differ cooling 10%, it is normally?<br>
<br>
regards<br>
<br>
<br>
Alex<br>
<br>
<br><br>---------- Forwarded message ----------<br>From: David BRADLEY <<a href="mailto:d.bradley@tess-inc.com">d.bradley@tess-inc.com</a>><br>To: "TRNSYS users mailing list at OneBuilding.org" <<a href="mailto:trnsys-users@lists.onebuilding.org">trnsys-users@lists.onebuilding.org</a>><br>Cc: Alex moreno <<a href="mailto:alamoreno19@hotmail.com">alamoreno19@hotmail.com</a>><br>Bcc: <br>Date: Wed, 24 Jan 2018 16:49:40 -0600<br>Subject: Re: [TRNSYS-users] airchange between zones<br>Alex,<br>
<br>
When you define an ADJACENT wall (or floor/ceiling) between two zones you have the ability to define a coupling air flow rate from each to the other. You can set the flow rate as a constant, as a scheduled value, or as an input. Type56 leaves it to you to determine how much air flows back and forth between the zones.<br>
<br>
The most correct way of determining the quantity of airflow is to use an airflow modeling tool such as TRNFlow or Type97/CONTAM.<br>
<br>
It is hard to answer your second question. The answer depends on what metrics you are looking at. For instance, I would be surprised to see the loads of the building change by 10% based on 1 zone or 2. However, if you are looking at consumption of energy by an HVAC system then it is possible, especially if you are using a single thermostat to control the system.<br>
<br>
kind regards,<br>
<br>
David<br>
<br>
<br>
<br>
On 01/24/2018 08:22, Alex moreno via TRNSYS-users wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Hi<br>
<br>
I have a doubt when i modeling a single family building with two floors,<br>
how i can connect the airchange between of two zones (first floor and<br>
second floor)<br>
<br>
another doubt is:<br>
<br>
Firstly i simulated the two floors us one zones, but now i simulate the<br>
buildign us two zones, the results of heating differ 2% respec of one<br>
zone building and differ cooling 10%, it is normally?<br>
<br>
regards<br>
<br>
<br>
Alex<br>
<br>
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-- <br>
***************************<br>
David BRADLEY<br>
Principal<br>
Thermal Energy Systems Specialists, LLC<br>
22 North Carroll Street - suite 370<br>
Madison, WI 53703 USA<br>
<br>
P:+1.608.274.2577<br>
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