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Optimisation de la consommation d'énergie d'un système à pompe à chaleur à vitesse variable et à boucle à eau.

Optimizing energy consumption of a water-loop variable-speed heat pump system.

Auteurs : YUAN S., GRABON M.

Type d'article : Article

Résumé

Water-loop heat pump (WLHP) systems have been widely used for decades. The most appealing feature of WLHP is its capability of handling simultaneous heating and cooling demands in a building and recovering heat generated from zones in cooling. The typical heat sink and source are cooling tower and boiler. WHLPs discussed in this paper are equipped with a variable-speed compressor; the cooling tower comes with one variable-speed fan; and the boiler has a continuously-adjustable capacity. This paper analyzes how the energy efficiency of individual component responds to variations in loop water temperature; demonstrates that there exists a unique loop-water temperature that minimizes overall energy consumption given a certain building load; proposes a practical strategy to find the optimal temperature in a real-time manner. [Reprinted with permission of Elsevier. Copyright 2011.]

Détails

  • Titre original : Optimizing energy consumption of a water-loop variable-speed heat pump system.
  • Identifiant de la fiche : 30003614
  • Langues : Anglais
  • Source : Applied Thermal Engineering - vol. 31 - n. 5
  • Date d'édition : 04/2011
  • DOI : http://dx.doi.org/10.1016/j.applthermaleng.2010.11.012

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