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Ice-Quick, App. for phase transformation of water in ice

Product No: 46294-00

Function and Applications

The Ice-Quick is a small device to demonstrate the adsorption technology with the sorption pair water/zeolite.

It consists of a zeolite filled cartridge, connected via an adaptor to a plastic cup, which contains some water, and which is evacuated by means of a hand vacuum pump.

After approx. 10to 20 strokes with the hand-vacuum pump the inside pressure is reduced below the vapour pressure of the water at ambient temperature, and the water start to boil.

Air gases go out of the water and starts to bubble on the bottom of the glass. (The more air is removed out of the system, the better the adsorption of water vapour. The vapour above the water surface is adsorbed in the cristalline structure of the zeolite. As a result, the remaining liquid water cools down.)

After a fewmore strokes the water calms down and finally begins to freeze.

After sometime the water is completely frozen: 50g of water at a temperature of 10 °C can be cooled down and frozen with in 30 sec with 500 g of zeolite.

The average specific cooling power results to 390W/kg Zeo.

This process can be repeated 8 to10 times with arbitrary intervals until the zeolite is saturated.

The zeolite has always to be cooled down to the ambient in between processes for the adsorption to function properly.

For desorption(regeneration) the zeolite has to be heated up to 250 °C for a short time.

When the zeolite is cooled down again to20 °C it is ready for further iceproduction.

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Product No: 46294-00