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Fonctionnement cyclique optimal des refroidisseurs à adsorption à deux lits avec récupération de masse.

Optimal cyclic operation of two-bed adsorption chillers with mass recovery.

Auteurs : GRÄBER M., KIRCHES C., SCHLÖDER J., et al.

Résumé

Adsorption refrigeration systems are discontinuously operated processes. The main control inputs are the duration of each operational stage. Compared to conventional system layouts the mass recovery schemes introduce an additional operational stage, during which both adsorbers are directly connected and exchange refrigerant vapour. The duration of each stage strongly affects the cooling power. The optimal stage durations however strongly depends on operating conditions such as ambient air temperature, available heat source temperature, desired target cooling temperature, and achievable volume flow rates of the secondary heat transfer circuits. In this contribution, the authors apply a direct method for periodic optimal control to optimize twobed adsorption chillers with mass recovery. The proposed method is based on a dynamic first principle model of the system and a multiple shooting optimization algorithm. The fast and reliable solution of the optimal control problem allows for extensive parameter studies as well as for an extension to nonlinear model predictive control of adsorption chillers.

Documents disponibles

Format PDF

Pages : 359-367

Disponible

  • Prix public

    20 €

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    Gratuit

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Détails

  • Titre original : Optimal cyclic operation of two-bed adsorption chillers with mass recovery.
  • Identifiant de la fiche : 30001224
  • Langues : Anglais
  • Source : Sources/sinks Alternative to the Outside Air for Heat Pump and Air-conditioning Techniques (Alternative Sources - AS), Padua, Italy, April 5-7, 2011. / International Sorption Heat Pump Conference (ISHPC11), Padua, Italy, April 6-8, 2011.
  • Date d'édition : 06/04/2011

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