Re: [EnergyPlus_Support] Green Roof

["Edward Lyon" <eglyon@xxxxxxx>]

I am not sure that you will get very accurate results using E+ to model a "live" green roof.  The problem is that the dynamics of soil and vegetation can't be input into the model.  There is no mechanism to incorporate soil cooling from rain or plant heat loss through evaporation.  The best E+ could model would be the mass effects...

Ned Lyon

Senior Project Manager
Simpson Gumpertz & Heger Inc.

41 Seyon Street
Building #1, Suite 500
Waltham, MA  02453

Phone:  781-907-9000
Fax:  781-907-9009


>>> fluizp@xxxxxxxxx 5/18/2004 7:18:50 PM >>>
   I'm developing a study based on green roof and want to know if anybody have
experience in this kind of simulation. I've noted that I will have to work with
MTF or EMPD Solution Algorithm, instead CTF (that I always used). In fact, I
have to consider the "alive" covering, that will have mass and heat transfer,
but don't know how to find data that describes the ground layer and the grass
covering. Grateful since already...

=====
Eng. Fábyo Luiz Pereira
UFRGS - Departamento de Engenharia Mecânica
Lafrig (Laboratório de Vapor e Refrigeração)
Rua Sarmento Leite, 425 - Sala 203 - Cidade Baixa
CEP 90050-170 - Porto Alegre - RS - BRASIL
Fone: +55 51 3316-3167
Cel: +55 51 8118-5052

______________________________________________________________________

Yahoo! Messenger - Fale com seus amigos online. Instale agora! 
http://br.download.yahoo.com/messenger/ 


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.



Yahoo! Groups SponsorADVERTISEMENT

Yahoo! Groups Links
To visit your group on the web, go to:
http://groups.yahoo.com/group/EnergyPlus_Support/ 
  To unsubscribe from this group, send an email to:
EnergyPlus_Support-unsubscribe@xxxxxxxxxxxxxxx 
  Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. 




------------------------ Yahoo! Groups Sponsor ---------------------~-->
Make a clean sweep of pop-up ads. Yahoo! Companion Toolbar.
Now with Pop-Up Blocker. Get it for free!
http://us.click.yahoo.com/L5YrjA/eSIIAA/yQLSAA/dkFolB/TM
---------------------------------------------------------------------~->

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.
 
Yahoo! Groups Links

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

<*> 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/