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Short summary

Das Projekt nutzt ungenutzte Kälteenergie aus Stickstofftanks und wandelt sie in Kaltwasser oder Eis für die Gastronomie um. So werden bestehende Prozesse effizienter genutzt und zusätzlicher Energiebedarf reduziert. Dadurch entsteht eine lokale, ressourcenschonende Kühlungslösung.

Cold recovery N2 tank

Avatar: Armin Kalajdzini Armin Kalajdzini

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What should be created?
Cold recovery from nitrogen tanks for the production of cold water and/or ice blocks for the gastronomy in Wiedikon. Liquid nitrogen is stored at around −196 °C in large, well-insulated tanks. Many companies use gaseous nitrogen for their processes on a daily basis. For this purpose, the liquid nitrogen is taken from the tank and passed through evaporator tubes (see pictures for ice formation). There it absorbs heat from the environment, evaporates and changes to a gaseous state. The nitrogen is then transferred to the building as a gas and used there. 2. Problem When liquid nitrogen is used, a large amount of cooling energy is lost unused Catering establishments need cooling (water, ice) at the same time 3. Solution Development of a system for recovering cooling energy Use for the production of cold water or ice blocks Link: Possible Refrigerant Recovery System Pictures: Tank @ Binz at 500kg/day consumption, ice formation example
example
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Binz
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