Discussion Category:  Centrifugal

Heat

What would cause this unit to heat up to 40C plus in the chamber as it runs at ambient temp for 2 to 3 hrs?

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Glenn PICKETTReply by
Glenn PICKETT

This unit is using a centrifuge motor to drive it. All motors dissipate heat.

Make sure that it is well ventilated.

However, if your vacuum in the chamber is good, then the temperature of the samples in the tubes cannot rise above their boiling point at that pressure. For example, if you have water-based solutions in a typical vacuum concentrator / centrifugal evaporator running under typical vacuum, then the temperature of the solution will be 5°C to 10°C, even if the wall of the chamber is 40°C. Sample temperature can only rise as the solution becomes very concentrated (theoretically when it gets dry). The energy absorbed is used to transform the solvent from liquid to vapour (remember latent heat of evaporation?). 

If you need a deeper explanation, please contact me.

Regards,

Glenn PICKETT

glenn.pickett@a-a-marketing.com

Aardvark Action Marketing


Glenn PICKETT

glenn.pickett@a-a-marketing.com

Tel: +33 953 774 612

Aardvark Action Marketing

Consultants in Marketing & Sales
Specialists in Marketing Science
Interactive Product Training

   
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