Share

IIR document

A universal floating head system.

Author(s) : DAVIES T. W.

Summary

The power consumed by a direct expansion refrigeration system in providing a given refrigeration effect is reduced if the condensing temperature is lowered, if the liquid is sub-cooled, if the evaporator temperature is raised, if the amount of refrigerant circulating is reduced, if the circulating velocities are reduced to the minimum required for oil return and if vapour formation in the liquid lines is suppressed. The paper describes an engineering solution to the problem of designing a large direct expansion system suitable for use in supermarkets which incorporates all the above desirable features and is predicted to save up to 30% of the energy used by existing systems to meet a given refrigeration load, depending on the climatic region. The refrigerant inventory is reduced and consequently so are losses. Furthermore, this new system is readily adapted to use environmentally acceptable refrigerants such as carbon dioxide, hydrocarbons and ammonia.

Available documents

Format PDF

Available

  • Public price

    20 €

  • Member price*

    Free

* Best rate depending on membership category (see the detailed benefits of individual and corporate memberships).

Details

  • Original title: A universal floating head system.
  • Record ID : 2004-1113
  • Languages: English
  • Source: 21st IIR International Congress of Refrigeration: Serving the Needs of Mankind.
  • Publication date: 2003/08/17

Links


See other articles from the proceedings (398)
See the conference proceedings

Indexing