ANSYS Icepak, Phase change material (PCM)

CFD_Now · September 26, 2014, 20:00

Dear all,

I was wondering if it's possible to simulate phase change (melting) with Icepak. I want to simulate a PCM (phase change material), I could not find it in the help.

Any information is highly appreciated.

Thanks you

Jupudi.pramodh · May 13, 2015, 09:58

Hi.. It's not possible to simulate phase change in Icepak.
Irrespective of it's a gap pad / phase change material / Thermal paste, we can only assign thermal conductivity/ resistance or thermal impedance. If any characteristics to be observed, you can do it using any available characteristics curve and final operating temperature..

rzyz · April 11, 2016, 16:05

Where can I find the viscosity value for PCMs produced by RUBITHERM company such as RT28HC and SP29Eu which is not available in their data sheet?

Mansoor_shad · May 13, 2017, 09:36

Hello my Dear friend rzyz,
If you still have not found your answer to the question, here it is,

viscosity(T)=0.001*exp(-4.25+(1790/T)), the value "0.001" is because of introduce the formula in SI (mass in Kg unit).

This formula is true when material is in liquid phase. The reference to access is:
Poling, B., The Properties of Gases and Liquids, McGraw-Hill Book Company, New York, USA, 2001

Mansoor_shad · May 13, 2017, 10:08

Hello my Dear friend rzyz,
If you still have not found your answer to the question, here it is,

viscosity(T)=0.001*exp(-4.25+(1790/T)), the value "0.001" is because of introduce the formula in SI (mass in Kg unit).

This formula is true when material is in liquid phase. The reference to access is:
Poling, B., The Properties of Gases and Liquids, McGraw-Hill Book Company, New York, USA, 2001[/QUOTE]

September 26, 2014, 20:00	ANSYS Icepak, Phase change material (PCM)	#1
CFD_Now New Member Tom Join Date: Jul 2012 Posts: 8 Rep Power: 14	Dear all, I was wondering if it's possible to simulate phase change (melting) with Icepak. I want to simulate a PCM (phase change material), I could not find it in the help. Any information is highly appreciated. Thanks you

April 11, 2016, 16:05	PCM viscocity values	#3
rzyz New Member Rami Join Date: Mar 2016 Posts: 4 Rep Power: 10	Where can I find the viscosity value for PCMs produced by RUBITHERM company such as RT28HC and SP29Eu which is not available in their data sheet?

May 13, 2017, 10:08	PCM viscocity values	#5
Mansoor_shad New Member Mansoor Shademan Join Date: Jul 2016 Posts: 8 Rep Power: 10	Hello my Dear friend rzyz, If you still have not found your answer to the question, here it is, viscosity(T)=0.001*exp(-4.25+(1790/T)), the value "0.001" is because of introduce the formula in SI (mass in Kg unit). This formula is true when material is in liquid phase. The reference to access is: Poling, B., The Properties of Gases and Liquids, McGraw-Hill Book Company, New York, USA, 2001[/QUOTE]

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May 13, 2015, 09:58	Hi	#2
Jupudi.pramodh Member Pramodh.J Join Date: Dec 2011 Location: Bangalore, India Posts: 37 Rep Power: 14	Hi.. It's not possible to simulate phase change in Icepak. Irrespective of it's a gap pad / phase change material / Thermal paste, we can only assign thermal conductivity/ resistance or thermal impedance. If any characteristics to be observed, you can do it using any available characteristics curve and final operating temperature..

May 13, 2017, 09:36		#4
Mansoor_shad New Member Mansoor Shademan Join Date: Jul 2016 Posts: 8 Rep Power: 10	Hello my Dear friend rzyz, If you still have not found your answer to the question, here it is, viscosity(T)=0.001*exp(-4.25+(1790/T)), the value "0.001" is because of introduce the formula in SI (mass in Kg unit). This formula is true when material is in liquid phase. The reference to access is: Poling, B., The Properties of Gases and Liquids, McGraw-Hill Book Company, New York, USA, 2001