cascade system


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cascade system

[ka′skād ‚sis·təm]
(mechanical engineering)
A combination of two or more refrigeration systems connected in series to produce extremely low temperatures, with the evaporator of one machine used to cool the condenser of another.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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With a turndown ratio of 6:1 and extremely low NOx emissions, THISION L cascade systems are said to be ideal for a wide range of commercial applications such as schools, healthcare facilities and retail outlets.
The Cascade system that will be delivered to CSCS will go into production in 2013 and is expected to deliver a peak performance of 750 TFlops/s.
Nick Greenwood, business development manager at Cleveland Cascades, said: "The cascade system was originally developed at Teesport to minimise the amount of corrosive dust being created when potash was being loaded onto ships, and has gone on to be widely adopted in ports and transport hubs around the world.
For reversible cycles, assuming no temperature difference between the two fluids in the cascade condenser, the optimum cascade temperature is the geometric mean of the condensing and evaporating temperatures of the cascade system, i.e., to have the same temperature ratio in each of the circuits.

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