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Proposition et évaluation thermoéconomique avec considérations de fiabilité de systèmes de trigénération alimentés par la géothermie avec des fonctionnements indépendants en été et en hiver.

Proposal and thermoeconomic evaluation with reliability considerations of geothermal driven trigeneration systems with independent operations for summer and winter.

Auteurs : ROSTAMNEJAD TAKLEH H., ZARE V.

Type d'article : Article de la RIF

Résumé

Novel tri-generation systems are developed to operate in a complete CHP or CCP mode, with having relatively simple configuration to meet a cost-effective design. The system consists of conventional Rankine and ejector refrigeration cycles in which CO2 is used as the environmentally-friendly working media (System I). To enhance performance of the proposed System I, a modification is made by incorporation of an internal heat exchanger to form the System II. Thermoeconomic performance of the systems are evaluated and optimized based on levelized cost of system products. Also, the reliability of the proposed systems are evaluated and discussed. It is found that, the proposed System II has exergy efficiency and levelized product cost of 39.68% and 28.51 $/GJ, for summer application mode. The results also indicated that at optimal operating conditions, System II has lower levelized product cost than System I by 10.4% and 2.3%, besides it has higher exergy efficiency than System I by 11.4% and 4.0%, for summer and winter modes, respectively. However, for winter applications, System I performs better than System II in terms of heating output and thermal efficiency by 97.3% and 34.1%, respectively. The results demonstrated that, the proposed systems offer opportunity of selecting a suitable one depending on the user's energy (power, cold or heat) demand.

Documents disponibles

Format PDF

Pages : 13

Disponible

  • Prix public

    20 €

  • Prix membre*

    Gratuit

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Détails

  • Titre original : Proposal and thermoeconomic evaluation with reliability considerations of geothermal driven trigeneration systems with independent operations for summer and winter.
  • Identifiant de la fiche : 30028318
  • Langues : Anglais
  • Sujet : Technologie
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 127
  • Date d'édition : 07/2021
  • DOI : http://dx.doi.org/10.1016/j.ijrefrig.2020.12.033

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