LAUDA Process cooling units KH (Kryoheater)
Operating temperature from -100 up to 400 °C
LAUDA heating and cooling systems from the KH family consist of the modules compressor, pump, expansion tank, evaporator and condenser. Depending on the lowest operating temperature LAUDA use one-stage (down to -35°C) or two-stage compressors (down to -50 °C), cascade switching of two refrigeration systems down to -100 °C for very low temperatures. The condensing of the refrigerant takes place via cooling water or air (-W or -L) with energy conservation being controlled by the infinitely variable and precise cooling water injection valve or variable speed fan control in air-cooled applications. If there are several compressors, a sequencing system ensures energy saving, equal-wear, partial load operation. With an electric heater or medium heated heat exchanger added, the Kryoheater can be expanded to extreme temperatures between -100 and 400 °C. Additional pre-cooling via in-house brine or air can easily be put into practice with the help of the modular system, and as far as energy is concerned, this often implies economic advantages compared to conventional systems. Some very exothermic processes require the additional cold storage buffer tanks that again are easily incorporated into the LAUDA modular approach.
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