2011/5/27 <trnsys-users-request@cae.wisc.edu>
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Today's Topics:
1. Re: Rotary Heat Exchanger (Matt Duffy)
2. Re: Rotary Heat Exchanger (Matt Duffy)
3. SDHW template Tin and Useful energy gain- strange behaviour
(Philip Horn)
4. Unable to create new weekly schedule (Alexandros Pantazaras)
---------- 已转发邮件 ----------
From: "Matt Duffy" <duffy@tess-inc.com>
To: "Santiago Naranjo Palacio" <sn377@cornell.edu>, trnsys-users@engr.wisc.edu
Date: Thu, 26 May 2011 13:45:24 -0500 (CDT)
Subject: Re: [TRNSYS-users] Rotary Heat Exchanger
Dear Santiago,
There is not a rotary heat exchanger in the TRNSYS Standard Library. The TESS HVAC Library has a rotary desicant dehumidifier, but no rotary heat exchanger.
Best regards,
Matt Duffy
----- Original Message -----
From: "Santiago Naranjo Palacio" <sn377@cornell.edu>
Sent: Tue, May 24, 2011 10:41
Subject: [TRNSYS-users] Rotary Heat Exchanger
--
Santiago Naranjo Palacio, Ph.D. Candidate
Cornell University, New York
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---------- 已转发邮件 ----------
From: "Matt Duffy" <duffy@tess-inc.com>
To: duffy@tess-inc.com, sn377@cornell.edu, trnsys-users@engr.wisc.edu
Date: Thu, 26 May 2011 14:07:21 -0500 (CDT)
Subject: Re: [TRNSYS-users] Rotary Heat Exchanger
Santiago,
I apologize; I stand corrected!
The TESS HVAC Libraries have Type667 and Type760 to model Air-to-Air Heat Recovery. You may view the descriptions at the following PDF.
http://www.trnsys.com/TESSLibs17_General_Descriptions.pdf
Please feel free to contact me if you have any other questions.
Best regards,
Matt Duffy
----- Original Message -----
From: "Matt Duffy" <duffy@tess-inc.com>
Sent: Thu, May 26, 2011 13:45
Subject: Re: [TRNSYS-users] Rotary Heat Exchanger
Dear Santiago,
There is not a rotary heat exchanger in the TRNSYS Standard Library. The TESS HVAC Library has a rotary desicant dehumidifier, but no rotary heat exchanger.
Best regards,
Matt Duffy
----- Original Message -----
From: "Santiago Naranjo Palacio" <sn377@cornell.edu>
Sent: Tue, May 24, 2011 10:41
Subject: [TRNSYS-users] Rotary Heat Exchanger
--
Santiago ! Naranjo Palacio, Ph.D. Candidate
Cornell University, New York
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_______________________________________________ TRNSYS-users mailing list TRNSYS-users@cae.wisc.edu https://mailman.cae.wisc.edu/listinfo/trnsys-users
---------- 已转发邮件 ----------
From: Philip Horn <phorn@fraunhofer.org>
To: "trnsys-users@cae.wisc.edu" <trnsys-users@cae.wisc.edu>
Date: Thu, 26 May 2011 16:14:38 -0400
Subject: [TRNSYS-users] SDHW template Tin and Useful energy gain- strange behaviour
Hi All,
I played around a little bit with different efficiency equations for the collector, and wanted to compare the results.
Therefore I used the SDHW template (with TYPE1 as collector), which uses the outlet of the Tank as inlet temp to the collector.
I erased this connection and set the inlet temp to a fixed 10 deg but in fact is it still varying when I plot it (from 10-13deg).
How come?
Another thing that I experienced: when I used the system in the normal mode (Tout tank connected to Tin collector), the useful energy gain of the collector is higher than with a fixed (and in average 10 deg K lower) input temperature.
Shouldn't it be the opposite?
As Q=m*cp*(Tout-Tin) , the smaller Tin, the higher Quse (assuming that Tout is not that heavily affected)?
Clarification highly appreciated!!
Best,
Philip
---------- 已转发邮件 ----------
From: Alexandros Pantazaras <apantazaras@gmail.com>
To: trnsys-users@cae.wisc.edu
Date: Fri, 27 May 2011 13:58:10 +0300
Subject: [TRNSYS-users] Unable to create new weekly schedule
Dear users,
I have TRNSYS version 16.00.0036 (TRNBuild version 1.0.76). While working in TRNBuild, I was attempting to create a new daily and weekly schedule to use in artificial lighting, since none of the existing schedules were of use to me. However, it is not possible to do such a thing, since in the new schedule window, I am unable to switch between daily and weekly schedule. The relevant radio button is set to "daily" and is greyed out, I can't change the selection. I can create a daily schedule without problem, but it is useless to me since I cannot determine when it is implemented during a week. Anyone else has this problem? Any solutions/suggestions?
Regards,
Alexandros
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