Bienvenue au Centre de Documentation et d'Information de 2iE: Plus de 27422 ouvrages vous sont proposés
Résultat de la recherche
1 recherche sur le mot-clé 'Pompe à chaleur; Système-polyvalente; Èchangeur de chaleur; Régime permanent; Régime transitoire; Refoulement-surchauffe'
Affiner la recherche Générer le flux rss de la recherche
Partager le résultat de cette recherche Faire une suggestion
Numerical study on the steady state and transient performance of a multi-type heat pump system in Revue internationale du froid, vol 34, issue 2 (mars 2011)
[article]
Titre : Numerical study on the steady state and transient performance of a multi-type heat pump system Titre original : Etude numérique sur le régime permanent et la performance en régime transitoire d’un système à pompe à chaleur polyvalent Type de document : texte imprimé Année de publication : 2012 Article en page(s) : pp. 429–443 Langues : Anglais (eng) Français (fre) Catégories : 621.5 : Technique pneumatique, du vide, des basses températures Mots-clés : Pompe à chaleur; Système-polyvalente; Èchangeur de chaleur; Régime permanent; Régime transitoire; Refoulement-surchauffe Index. décimale : 621.56 Technique des basses températures : réfrigération, pompe à chaleur Résumé : Numerical methods are provided to analyze dynamic characteristics as well as steady-state performance of a multi-type heat pump system. Lumped parameter method was applied to simulate the compressor and expansion device. Additionally, fully distributed method was used for analyzing the condenser and evaporators. The transient terms in the governing equations for heat exchangers were solved adopting the wave equation solutions. The simulation results predict the steady-state performance of a heat pump system with the deviation of ±10%. The transient simulation showed satisfactory responses of temperatures and pressures for various compressor speeds or expansion valve openings. From the results, it was shown that the operating conditions of secondary fluid of one indoor unit had minor influence on the performance of the other unit, while opening of expansion valve affected the transient responses of both evaporators significantly.
in Revue internationale du froid > vol 34, issue 2 (mars 2011) . - pp. 429–443[article] Numerical study on the steady state and transient performance of a multi-type heat pump system = Etude numérique sur le régime permanent et la performance en régime transitoire d’un système à pompe à chaleur polyvalent [texte imprimé] . - 2012 . - pp. 429–443.
Langues : Anglais (eng) Français (fre)
in Revue internationale du froid > vol 34, issue 2 (mars 2011) . - pp. 429–443
Catégories : 621.5 : Technique pneumatique, du vide, des basses températures Mots-clés : Pompe à chaleur; Système-polyvalente; Èchangeur de chaleur; Régime permanent; Régime transitoire; Refoulement-surchauffe Index. décimale : 621.56 Technique des basses températures : réfrigération, pompe à chaleur Résumé : Numerical methods are provided to analyze dynamic characteristics as well as steady-state performance of a multi-type heat pump system. Lumped parameter method was applied to simulate the compressor and expansion device. Additionally, fully distributed method was used for analyzing the condenser and evaporators. The transient terms in the governing equations for heat exchangers were solved adopting the wave equation solutions. The simulation results predict the steady-state performance of a heat pump system with the deviation of ±10%. The transient simulation showed satisfactory responses of temperatures and pressures for various compressor speeds or expansion valve openings. From the results, it was shown that the operating conditions of secondary fluid of one indoor unit had minor influence on the performance of the other unit, while opening of expansion valve affected the transient responses of both evaporators significantly.