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[TRNSYS-users] Strange Opening Factor (OF) of Window



Dear all,
 
     I simulated CO2 concentration changes using TRNFlow. But there is a STRANGE phenomenon. There are 2 occupants from 8am to 6 pm, CO2% is controlled by PID controller which controls Opening Factor (OF) of window at the set-point 1000 ppm. From 6 pm, there are no occupants, OF is 0, there is no infiltration in TRNBuild (Certainly, infiltration in TRNBuild indeed will inactivate when couping TRNFlow based on TRNFlow Manual). However, from 6 pm, CO2% begins to decrease. It's extremely strange!
 
   Which relative expert can expain that? Or give me some advices for that? I am puzzled for a long time.
 
   Many thanks in advance!
 
  br
 
 wang

2011/9/30 <trnsys-users-request@cae.wisc.edu>
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Today's Topics:

  1. Using Excel as Load Profile (Pei Ru Chao)
  2. TRNSYS error 300 (torres.carlos-moises@lte.ireq.ca)
  3. Direct expansion solar collector (Mohamad Azly Abd Aziz (Ir))
  4. simulation studio crash when updating project (Antoine Gautier)


---------- 已转发邮件 ----------
From: Pei Ru Chao <simplica1@hotmail.com>
To: TRNSYS <trnsys-users@cae.wisc.edu>
Date: Fri, 30 Sep 2011 16:31:53 +1000
Subject: [TRNSYS-users] Using Excel as Load Profile
Hi all,

As a newbie I am wondering how to use Excel for load profile input. Can anyone point me in the right direction as to how to use a Data Reader to do this? For example, can the Data Reader read 10920 rows of data? In 9a for example, Parameter 2 asks how many values of input to read and the maximum is only 98?

Thanks

Pei




---------- 已转发邮件 ----------
From: <torres.carlos-moises@lte.ireq.ca>
To: <trnsys-users@cae.wisc.edu>
Date: Thu, 29 Sep 2011 15:50:36 -0400
Subject: [TRNSYS-users] TRNSYS error 300
Dear all,
 
Whenever I ry to run a type 56 simulation in TRNSED I am given the following error even though the same program runned perfectly in TRNEdit
 
 ***** ERROR *****        TRNSYS ERROR # 300
 UNABLE TO START PROGRAM IN CALLPROGRAM UTILITY
 PLEASE CHECK PATH AND PROGRAM NAME, THIS MAY BE A PROBLEM IN TYPE 66
 
*** Fatal Error at time   :         0.000000
    Generated by Unit     : Not applicable or not available
    Generated by Type     : Not applicable or not available
    TRNSYS Message    300 : The TRNSYS Program attempted to evaluate an EQUATION that raised a negative number to a non-integer value. Please check the EQUATION formulation and re-run the simulation
    Reported information  : Not available
 
the message is not very helpfull and I don't even use Type 66 in my simulation and I checked all my equations and nothing obvious comes to view.
 
Is there any known solution to this problem? If need be I can send you the files im using.
 
Thank you
 
Carlos Torres
Stagiaire universitaire
Laboratoire des technologies de l'énergie (LTE)
 


---------- 已转发邮件 ----------
From: "Mohamad Azly Abd Aziz (Ir)" <AZLY@jkr.gov.my>
To: "trnsys-users@cae.wisc.edu" <trnsys-users@cae.wisc.edu>
Date: Fri, 30 Sep 2011 04:36:25 -0700
Subject: [TRNSYS-users] Direct expansion solar collector

Hi

 

I wonder whether someone has come-out with heat pump type with direct expansion solar collector/evaporator?.

 

Regards

 

Azly



---------- 已转发邮件 ----------
From: "Antoine Gautier" <antoine.gautier@solamen.fr>
To: <trnsys-users@cae.wisc.edu>
Date: Fri, 30 Sep 2011 13:48:10 +0200
Subject: [TRNSYS-users] simulation studio crash when updating project

Dear all

 

I cannot update my project any more without crashing simulation studio (*.tpf and *.b17 in attachment).

Is there another way to update the input list for Type56 so that I can keep on working?

 

Thanks a lot for your help.

Best regards

--

Antoine Gautier
Solam
en
+33 6 98 78 56 46

antoine.gautier@solamen.fr

 


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