Dear GreenEnergyProject,
You want the specific heat of concrete, which is about 0.156 BTU / # / F – quite a bit lower than water!
The Building Performance Team
James V. Dirkes II, P.E., BEMP , LEED AP
1631 Acacia Drive NW
Grand Rapids, MI 49504
616 450 8653
From: EnergyPlus_Support@xxxxxxxxxxxxxxx [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx] On Behalf Of greenenergyproject
Sent: Wednesday, August 31, 2011 2:02 PM
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
Subject: [EnergyPlus_Support] Btu Of Basement Concrete?
My question is simple. I am wanting to know if the Btu per pound of concrete is treated the same as that for a pound of water? ~ Where 1 Btu = 1 Lb water * 1 degree F. I have been assuming that the Btu is per pound of concrete is the same as it is for water.
I have been using the formula for water with my basement concrete thermal mass. To study the cold thermal energy of basement concrete, for an application I want to model in the future with SketchUp / OpenStudio / EnergyPlus. Which is a low energy heat removal scheme. Relying upon cold geo thermal energy in the concrete to suck up ground floor heat sent down to the basement, via the 2cd Law Of Thermodynamics. I compute with a calculator. That I can dump several kilo watt of ground level floor space heat into an uninsulated portion of a basement. Using the above Btu formula for lbs of water.
Please note that I am not wanting to know anything about the R factor of concrete, I know that.
~ My application and design concept for this is below.
(Note I mo
Primary EnergyPlus support is found at:
http://energyplus.helpserve.com or send a message to energyplus-support@xxxxxxxx
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 currently allowed but be mindful that not everyone has a high speed connection. Limit attachments to small files.
EnergyPlus Documentation is searchable. Open EPlusMainMenu.pdf under the Documentation link and press the "search" button.
Change settings via the Web (Yahoo! ID required)
Change settings via email: Switch delivery to Daily Digest | Switch to Fully Featured
Visit Your Group | Yahoo! Groups Terms of Use | Unsubscribe
__,_._,___