[article]
Titre : |
A correlation-free on-line optimal control method of heat rejection pressures in CO2 transcritical systems |
Titre original : |
Méthode sans corrélation de régulation optimale en ligne des pressions de refoulement dans les systèmes au CO2 transcritiques |
Type de document : |
texte imprimé |
Auteurs : |
Wei-Jiang Zhang, Auteur ; Chun-Lu Zhang, Auteur |
Année de publication : |
2011 |
Article en page(s) : |
pp. 844-850 |
Note générale : |
Génie Mécanique |
Langues : |
Anglais (eng) |
Mots-clés : |
Cycle Carbon dioxide Transcritical High pressure Optimization Control Commissioning Model |
Index. décimale : |
621.5 Energie pneumatique. Machinerie et outils. Réfrigération |
Résumé : |
This paper proposes a novel correlation-free on-line optimal control method for CO2 transcritical refrigeration systems. It uses the on-line correction formula to track the optimal pressure set point. As a critical advantage against the existing empirical correlations of the heat rejection pressure, it is independent of the cycle, the system specifications, and the operating conditions. Dynamic numerical simulation demonstrates how to apply the new method to a basic CO2 transcritical refrigeration system. The results show that the proposed method can well track the optimal pressures and is robust to resist the sampling noise. |
DEWEY : |
621.5 |
ISSN : |
0140-7007 |
En ligne : |
http://www.sciencedirect.com/science/article/pii/S0140700711000272 |
in International journal of refrigeration > Vol. 34 N° 4 (Juin 2011) . - pp. 844-850
[article] A correlation-free on-line optimal control method of heat rejection pressures in CO2 transcritical systems = Méthode sans corrélation de régulation optimale en ligne des pressions de refoulement dans les systèmes au CO2 transcritiques [texte imprimé] / Wei-Jiang Zhang, Auteur ; Chun-Lu Zhang, Auteur . - 2011 . - pp. 844-850. Génie Mécanique Langues : Anglais ( eng) in International journal of refrigeration > Vol. 34 N° 4 (Juin 2011) . - pp. 844-850
Mots-clés : |
Cycle Carbon dioxide Transcritical High pressure Optimization Control Commissioning Model |
Index. décimale : |
621.5 Energie pneumatique. Machinerie et outils. Réfrigération |
Résumé : |
This paper proposes a novel correlation-free on-line optimal control method for CO2 transcritical refrigeration systems. It uses the on-line correction formula to track the optimal pressure set point. As a critical advantage against the existing empirical correlations of the heat rejection pressure, it is independent of the cycle, the system specifications, and the operating conditions. Dynamic numerical simulation demonstrates how to apply the new method to a basic CO2 transcritical refrigeration system. The results show that the proposed method can well track the optimal pressures and is robust to resist the sampling noise. |
DEWEY : |
621.5 |
ISSN : |
0140-7007 |
En ligne : |
http://www.sciencedirect.com/science/article/pii/S0140700711000272 |
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