Partager

Document IIF

Modélisation des performances d'une pompe à chaleur à absorption-compression d'ammoniac-eau pour la production de vapeur dans l'industrie alimentaire.

Performance modelling of an ammonia-water absorption-compression heat pump for steam generation in food processing.

Numéro : 0022

Auteurs : REN S., AHRENS M. U., HAMID K., TOLSTOREBROV I., HAFNER A., EIKEVIK T., WIDELL K. N.

Résumé

At the present time, fossil fuel is still the primary energy source for steam production in food processing. To mitigate climate change and promote sustainable development, there is an urgent need for eco-friendly steam boilers. The absorption-compression heat pumps (ACHP) using an ammonia-water mixture as the working fluid can provide high heat sink temperature up to 140°C at low discharge pressure levels and with temperature glides in absorption and desorption processes. The present study investigated the performance of the ACHP for hot water and steam production. The simulation model was established based on the ACHP prototype in the NTNU lab. A case of 150 kW heating capacity was simulated with a high pressure of 23.65 bar and a low pressure of 4 bar. The ACHP system COP was 2.85 for a pressurized hot water supply temperature of 105 °C. The effects of heat sink outlet temperature and part-load and overload conditions on the system performance were investigated. 

Documents disponibles

Format PDF

Pages : 10

Disponible

  • Prix public

    20 €

  • Prix membre*

    Gratuit

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

Détails

  • Titre original : Performance modelling of an ammonia-water absorption-compression heat pump for steam generation in food processing.
  • Identifiant de la fiche : 30030981
  • Langues : Anglais
  • Sujet : Technologie
  • Source : 10th IIR Conference on Ammonia and CO2 Refrigeration Technologies.
  • Date d'édition : 27/04/2023
  • DOI : http://dx.doi.org/10.18462/iir.nh3-co2.2023.0022

Liens


Voir d'autres communications du même compte rendu (38)
Voir le compte rendu de la conférence

Indexation