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Analyse des performances d’un cycle combiné de refroidissement et de puissance.

Performance analysis of a Combined Cooling and Power Cycle.

Numéro : No 050

Auteurs : VOELTZEL N., PHAN H. T., TAUVERON N., BLONDEL Q., GONZALEZ B.

Résumé

Absorption cycles cogenerating cooling and power are flexible systems able to adapt to the irregularity of the user’s needs. To facilitate their integration in industrial processes and mobility applications, this work investigates the performance and control of a water-ammonia based cogeneration system operating at lowgrade heat (< 200 °C). Through a complete model of a cogeneration cycle implementing an accurate description of an expander, the optimal performance of power and/or cooling production are explored according to the needs and the available temperature sources. Simulations show that power and cooling productions can respectively reach the performances of Kalina and absorption cycles for determined operating conditions. They also highlight the critical features of an expander in a combined production cycle. The model is then imported in a dynamic solver to investigate the transient behavior of a cogenerating system. Such complex systems present significant inertia when starting or switching from one production mode to another (between cooling and power). This study provides some insight on the most critical elements of the cycle.

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Pages : 9 p.

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Détails

  • Titre original : Performance analysis of a Combined Cooling and Power Cycle.
  • Identifiant de la fiche : 30029938
  • Langues : Anglais
  • Sujet : Technologie
  • Source : 13th IEA Heat Pump Conference 2021: Heat Pumps – Mission for the Green World. Conference proceedings [full papers]
  • Date d'édition : 31/08/2021

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