Partager

Application des compresseurs à spirale avec variation de la puissance dans le génie du froid.

Primjena scroll kompresora s modulacijom rashladnog ucina u tehnici hladenja.

Auteurs : ZILIC D., WINANDY E., HUNDY G.

Résumé

This paper deals with an explanation of the principle of cooling capacity modulation with a digital scroll compressor. Capacity modulation was achieved on the mechanical principle, by separating coils from the main body, and control was achieved by PWM (pulse width modulation). The paper describes how, by cooling capacity modulation and by steam injection during the compression process, it is possible to attain the highest, until recently unattainable cooling coefficients and thereby have full possibility of cooling capacity modulation. Scroll compressors with capacity modulation are used with R404A, R407C and R410A, which makes them usable in refrigeration engineering liquid coolers, heat pumps, VRF systems, etc. Particularly with cooling systems with R404A, energy savings were achieved owing to evaporation temperature control within the limits plus or minus 0.5 K (verified by research). Combined with steam injection (which functions even at the time of reduced capacity), this technology offers the highest available energy efficiency at the moment.

Documents disponibles

Format PDF

Pages : pp. 60-68

Disponible

  • Prix public

    20 €

  • Prix membre*

    15 €

* meilleur tarif applicable selon le type d'adhésion (voir le détail des avantages des adhésions individuelles et collectives)

Détails

  • Titre original : Primjena scroll kompresora s modulacijom rashladnog ucina u tehnici hladenja.
  • Identifiant de la fiche : 2010-0088
  • Langues : Serbe
  • Source : Zbornik radova. 40. Medunarodni kongres o grejanju, hladenju i klimatizaciji./ Proceedings. 40th International congress on HVAC&R.
  • Date d'édition : 02/12/2009

Liens


Voir d'autres communications du même compte rendu (39)
Voir le compte rendu de la conférence

Indexation