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Document IIF

Étude de la compression avec injection diphasique et économiseur pour une application à haute température.

Investigation of two-phase injected compression with economization for high temperature application.

Numéro : pap. n. 292

Auteurs : BAHMAN A., ZIVIANI D., GROLL E.

Résumé

An economized two-phase injection (ETI) system has been investigated under extreme high ambient temperatures. An Environmental Control Unit (ECU) for military applications with a cooling capacity of 17 kW was retrofitted with a plate heat exchanger (PHX) economizer and an electronic expansion valve to control the injection state during the compression process. Two-phase injection was compared with both saturated vapor injection and no-injection (baseline) under different testing conditions up to an ambient temperature of 51.7 ºC (125 ºF). The experimental results show a significant reduction in compressor discharge temperature up to 11.4 K and an improvement in cooling capacity up to 10% while maintaining approximately the same COP. The increase in compressor power consumption suggested further potential for ETI optimization for air conditioning (AC) application at high ambient temperature.

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Pages : 8

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Détails

  • Titre original : Investigation of two-phase injected compression with economization for high temperature application.
  • Identifiant de la fiche : 30026223
  • Langues : Anglais
  • Source : Proceedings of the 25th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
  • Date d'édition : 24/08/2019
  • DOI : http://dx.doi.org/10.18462/iir.icr.2019.0292

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