tank insualtion thickness

[eski1]

Hi All,
I have to insulate a small stainless steel vessel mesuring 1m in diameter 1m tall, which will contain 500kg of cream @ 3 degrees which needs to remain at this temperature for 2 hours minimum, I can only insulate the sides and the base due to pipe terminations etc on the top face. My question is what material and thickness do I require I will then over clad in stainless which will be fully welded due to the environment that the vessel is situated.

Any info will be greatfully recieved.

Many thanks

Lee

 

[desertfox]

Hi eski1

Have a look at this site under heat conduction through insulated systems:-

http://www.roymech.co.uk/Related/Thermos/Thermos_insulation.html#calcs

You may have to consider heat loss through convection on the top of the vessel where there is no insulation.
The wall thickness of the vessel as well as the insulation is important for the calculation, as is the ambient temperature of the room the vessel is sited, put another way are you keeping heat out or in from the vessel?

desertfox

 

[vpl]

In addition to desertfox's questions, please confirm the 3 degrees is Celcius.

Patricia Lougheed

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[ione]

You can try 3E Plus at the link below

http://www.pipeinsulation.org/

or Kaicalc 2.0 at the link

http://www.kaimann.de/en/service/kaicalc.html

they both have an option to calculate insulation thickness for tanks