how to use phase changing materials (PCM)

GuidoM · December 10, 2012, 10:02

Hi there.
I'm about to install Autodesk Simulation CFD and I'd like to know if it is possible to calculate PCM (phase changing materials). If yes, how?

I'd like to use it in the false ceiling and use this product: http://www.micronal.de/portal/load/f...09_English.pdf

more info here: http://www.micronal.de/portal/basf/i...ursor=1_290814

basically it changes phase from solid to liquid when the temperature goes up to maintain the room temperature stable.

Any hint/tip/link/help is highly appreciated.
Thank you!
Guido

marktm250xc · January 11, 2013, 16:10

With some assumptions, you can approximate this by adjusting the specific heat Cp to vary in a piecewise linear fashion based on temperature. For example, water has a higher Cp for liquid state compared to solid ice state. At the transition point (0C) the Cp spikes above that of the solid Cp over a very narrow temp band. For temperatures outside this band, the Cp is set for the appropriate phase state.

December 10, 2012, 10:02	how to use phase changing materials (PCM)	#1
GuidoM New Member Guido Join Date: Dec 2012 Posts: 1 Rep Power: 0	Hi there. I'm about to install Autodesk Simulation CFD and I'd like to know if it is possible to calculate PCM (phase changing materials). If yes, how? I'd like to use it in the false ceiling and use this product: http://www.micronal.de/portal/load/f...09_English.pdf more info here: http://www.micronal.de/portal/basf/i...ursor=1_290814 basically it changes phase from solid to liquid when the temperature goes up to maintain the room temperature stable. Any hint/tip/link/help is highly appreciated. Thank you! Guido

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
error message	cuteapathy	CFX	14	March 20, 2012 07:45
alphaEqn.H in twoPhaseEulerFoam	cheng1988sjtu	OpenFOAM Bugs	14	September 18, 2011 13:46
Constant velocity of the material	Sas	CFX	15	July 13, 2010 08:56
mass flow in is not equal to mass flow out	saii	CFX	2	September 18, 2009 08:07
compressible two phase flow in CFX4.4	youngan	CFX	0	July 1, 2003 23:32

January 11, 2013, 16:10		#2
marktm250xc New Member Mark Decker Join Date: Jan 2013 Location: Central Virginia Posts: 20 Rep Power: 2	With some assumptions, you can approximate this by adjusting the specific heat Cp to vary in a piecewise linear fashion based on temperature. For example, water has a higher Cp for liquid state compared to solid ice state. At the transition point (0C) the Cp spikes above that of the solid Cp over a very narrow temp band. For temperatures outside this band, the Cp is set for the appropriate phase state.