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Utilisation de la chaleur résiduelle d’un système de cogénération à l’aide de refroidisseurs à absorption-résorption de petite taille pour le froid dans les supermarchés.

CHP-Waste Heat Utilization with Small-scaled Absorption-Resorption Chillers for Supermarket Refrigeration.

Numéro : No 191

Auteurs : ZIEGLER O., HESSE U., THOMAS C.

Résumé

The IEA says in its World Energy Outlook 2012, “a key constraint on the deployment of CHP is the difficulty of distributing heat over long distances. Because of this, CHP units must be located close to demand, potentially increasing costs.”[1] In the trade and commerce sector, especially the food retailing, it seems to be unfeasible to utilize the entire amount of heat while there is a permanent demand on electric energy provided by a CHP plant. In summer or transitional months there is nearly no demand on heating but the need for air conditioning (A/C) is increasing while the demand for normal refrigeration is almost constant throughout the year. A possible solution to the waste heat problem is the installation of a sorption refrigeration system to compensate the opposite demand for heating and cooling capacity providing both temperature levels of normal cooling and air conditioning. Especially for those applications small-scaled sorption chillers in the range <50 kW are currently not available on the market. In a pilot project a thermally driven refrigeration plant with a cooling capacity of <25 kW using the resorption principle was evolved and installed in a supermarket. Special focus is given to the operating costs, the amortization as well as the CO2 emissions of the examined system. 

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Détails

  • Titre original : CHP-Waste Heat Utilization with Small-scaled Absorption-Resorption Chillers for Supermarket Refrigeration.
  • Identifiant de la fiche : 30030031
  • 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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