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Advanced sorption chillers for gas cooling.

Author(s) : SATZGER P., ZIEGLER F., STITOU D., SPINNER B., ALEFELD G.

Summary

The power demand peak caused by compression climatization may be reduced by using direct-fired sorption chillers. Commercial absorption chillers reach a COP of about 1.2. Using high temperature driving heat, the COP of absorption chillers can be improved by multistaging. But at high temperatures, currently used working pairs tend to cause heavy corrosion of the construction materials. Solid sorption systems as high-temperature topping cycles can avoid these problems. In a French-German cooperation a cascading triple-effect system is being realized, consisting of a bottoming double-effect machine working with lithium bromide-water and a topping solid-reaction working with nickel chloride-ammonia. A COP of 1.35 is expected in this experiment. The solid-reaction topping cycle also can be realized as a two-reaction system. Then a COP of 1.55 can be expected.

Details

  • Original title: Advanced sorption chillers for gas cooling.
  • Record ID : 1997-2117
  • Languages: English
  • Source: ASHRAE Transactions.
  • Publication date: 1996/02/16
  • Document available for consultation in the library of the IIR headquarters only.

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