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State-space model for dynamic behavior of vapor compression liquid chiller / Ye, Yao in International journal of refrigeration, Vol. 36 N° 8 (Décembre 2013) 

Public ISBD [article]  in International journal of refrigeration > Vol. 36 N° 8 (Décembre 2013) . - pp. 2128–2147 Titre : State-space model for dynamic behavior of vapor compression liquid chiller Titre original : Modèle espace-état du comportement dynamique d’une refroidisseur de liquide à compression de vapeur Type de document : texte imprimé Auteurs : Ye, Yao, Auteur ; Mengwei, Huang, Auteur ; Jing Chen, Auteur Année de publication : 2014 Article en page(s) : pp. 2128–2147 Note générale : Refrigeration Langues : Anglais (eng) Mots-clés : State-space  model;  dynamic  response;  vapor  compression;  liquid  chiller;  R-134A Résumé : A state-space model has been developed to investigate the dynamic behaviors of refrigeration system. By using vector-matrix notation and linearization, the ordinary differential equations describing the chiller's dynamic thermal behaviors are transformed into a representation form of the state space. The model has been validated by a series of dynamic response experiments of a chiller with the refrigerant R-134a. The average errors of the model results compared with the experimental data are all less than 10% in the experimental cases. Afterward, the model is used to investigate the transient behaviors of the exit cold carrier temperature of evaporator under different A disturbances. The state-space model developed in this study helps us have a good idea of the dynamic performance of a refrigeration system under transient conditions and design optimized control strategies for a high-energy-efficiency HVAC system. En ligne : http://www.sciencedirect.com/science/article/pii/S0140700713001187 [article] State-space model for dynamic behavior of vapor compression liquid chiller = Modèle espace-état du comportement dynamique d’une refroidisseur de liquide à compression de vapeur [texte imprimé] / Ye, Yao, Auteur ; Mengwei, Huang, Auteur ; Jing Chen, Auteur . - 2014 . - pp. 2128–2147. Refrigeration Langues : Anglais (eng) in International journal of refrigeration > Vol. 36 N° 8 (Décembre 2013) . - pp. 2128–2147 Mots-clés : State-space  model;  dynamic  response;  vapor  compression;  liquid  chiller;  R-134A Résumé : A state-space model has been developed to investigate the dynamic behaviors of refrigeration system. By using vector-matrix notation and linearization, the ordinary differential equations describing the chiller's dynamic thermal behaviors are transformed into a representation form of the state space. The model has been validated by a series of dynamic response experiments of a chiller with the refrigerant R-134a. The average errors of the model results compared with the experimental data are all less than 10% in the experimental cases. Afterward, the model is used to investigate the transient behaviors of the exit cold carrier temperature of evaporator under different A disturbances. The state-space model developed in this study helps us have a good idea of the dynamic performance of a refrigeration system under transient conditions and design optimized control strategies for a high-energy-efficiency HVAC system. En ligne : http://www.sciencedirect.com/science/article/pii/S0140700713001187