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Développement et validation d’un modèle de chauffe-eau à pompe à chaleur en état quasi-stationnaire ayant un réservoir d’eau stratifié et un condenseur enveloppant la cuve.

Development and validation of quasi-steady-state heat pump water heater model having stratified water tank and wrapped-tank condenser.

Auteurs : SHEN B., NAWAZ K., BAXTER V., et al.

Type d'article : Article, Article de la RIF

Résumé

Heat pump water heater systems (HPWH) introduce new challenges for design and modeling tools, because they require vapor compression system balanced with a water storage tank. In addition, a wrapped-tank condenser coil has strong coupling with a stratified water tank, which leads HPWH simulation to a transient process. To tackle these challenges and deliver an effective, hardware-based HPWH equipment design tool, a quasi-steady-state HPWH model was developed based on the DOE/ORNL Heat Pump Design Model (HPDM). Two new component models were added via this study. One is a one-dimensional stratified water tank model, an improvement to the open-source EnergyPlus water tank model, by introducing a calibration factor to account for bulk mixing effect due to water draws, circulations, etc. The other is a wrapped-tank condenser coil model, using a segment-to-segment modeling approach. The HPWH system model was validated against available experimental data. After that, the model was used for parametric simulations to determine the effects of various design factors.

Documents disponibles

Format PDF

Pages : 78-90

Disponible

  • Prix public

    20 €

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    Gratuit

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Détails

  • Titre original : Development and validation of quasi-steady-state heat pump water heater model having stratified water tank and wrapped-tank condenser.
  • Identifiant de la fiche : 30023883
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 87
  • Date d'édition : 03/2018
  • DOI : http://dx.doi.org/10.1016/j.ijrefrig.2017.10.023

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