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[rosneft1]

Hi,

 

I am looking at initially designing a heated jacketed vessel which uses water at sub atmospheric pressure to moisten textiles (this is a simulation calculation for a different process). 

 

The vessel will be 100L with 25L of water and equivalent 34L (~7kg) of textile in a basket above the water surface.

For heat transfer, I was going to assume 75% of the heat transfer is conducted by the water vapour. Hence calculating the Heat transfer from the jacket through the stainless steel to the vapour to the textile. I would like to use this to see how wide the vessel can be while maintaining the temperature of the textile basket at 70 C +- C. The heat control on the fabric is important as in the actual process the heating fluid will damage the fabric. 

 

Can some one guide me towards how I can calculate the heat transfer coefficient of 34L of moist textile  absorbing 2.5 x their weight in moisture (18 kg of water absorbed)?

 

If you need more information or I have missed out anything feel free to ask.

 

Any help including documentation to read...would be appreciated.

 

Thank you in advance.