[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[EnergyPlus_Support] ConFD vs CTF



What is the benefit of using the Finite Difference solution over the CTF method?  Has it been shown to better account for transient behavior (ie thermal mass)?

 

________________________________

From: EnergyPlus_Support@xxxxxxxxxxxxxxx [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx] On Behalf Of dust_broom
Sent: Tuesday, April 17, 2007 7:03 AM
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
Subject: [EnergyPlus_Support] High thermal mass envelope

 

Dear all

I'm simulating a 80 cm thick granite wall building. This is obviously
a high thermal mass envelope. I know that there are some problems
regarding the simulation of high thermal mass envelopes. I'm also
comparing my results with the results provided by TRNSYS for the same
building. In fact they don't match at all! so I was wondering witch
solution algorithm should I use. I'm currently using the CTF but maybe
for high thermal mass, the ConFD is more accurate.
Can anyone give me some insight about this issue?

Thank you in advance

Emanuel Sá

 

____________________________________________________________
Electronic mail messages entering and leaving Arup  business
systems are scanned for acceptability of content and viruses


[Non-text portions of this message have been removed]



The primary EnergyPlus web site is found at:
http://www.energyplus.gov

The group web site is:
http://groups.yahoo.com/group/EnergyPlus_Support/

Attachments are not allowed -- please post any files to the appropriate folder in the Files area of the Support Web Site.

EnergyPlus Documentation is searchable.  Open EPlusMainMenu.pdf under the Documentation link and press the "search" button.
 
Yahoo! Groups Links

<*> To visit your group on the web, go to:
    http://groups.yahoo.com/group/EnergyPlus_Support/

<*> Your email settings:
    Individual Email | Traditional

<*> To change settings online go to:
    http://groups.yahoo.com/group/EnergyPlus_Support/join
    (Yahoo! ID required)

<*> To change settings via email:
    mailto:EnergyPlus_Support-digest@xxxxxxxxxxxxxxx 
    mailto:EnergyPlus_Support-fullfeatured@xxxxxxxxxxxxxxx

<*> To unsubscribe from this group, send an email to:
    EnergyPlus_Support-unsubscribe@xxxxxxxxxxxxxxx

<*> Your use of Yahoo! Groups is subject to:
    http://docs.yahoo.com/info/terms/