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Plant-wide dynamic and static optimisation of supermarket refrigeration systems / Torben Green in International journal of refrigeration, Vol. 38 (Février 2014) 

Public ISBD [article]  in International journal of refrigeration > Vol. 38 (Février 2014) . - pp. 106–117 Titre : Plant-wide dynamic and static optimisation of supermarket refrigeration systems Titre original : Optimisation dynamique et statique au niveau de l'ensemble du système frigorifique dans des supermarchés Type de document : texte imprimé Auteurs : Torben Green, Auteur ; Roozbeh Izadi-Zamanabadi, Auteur ; Roozbeh Razavi-Far, Auteur Année de publication : 2014 Article en page(s) : pp. 106–117 Note générale : Refrigeration Langues : Anglais (eng) Mots-clés : Control;  Refrigeration  systems;  Active  system  monitoring;  Performance  optimization;  Performance  assessment Résumé : Optimising the operation of a supermarket refrigeration system under dynamic as well as steady state conditions is addressed in this paper. For this purpose an appropriate performance function that encompasses food quality, system efficiency, and also component reliability is established. The choice of setup parameters, which are necessary for system performance optimisation, depends on whether the system operates under steady state or dynamic conditions. While operating under steady state conditions, the total system performance is shown to predominantly be influenced by the suction pressure. The dynamic optimisation requires use of dedicated excitation signals. A method for designing such signals under realistic operational conditions is proposed. A derivative free optimisation technique based on Invasive Weed Optimisation (IWO) is utilised to optimise the parameters of the controllers in the system. Simulation results is used to substantiate the suggested methodology. En ligne : http://www.sciencedirect.com/science/article/pii/S014070071300217X [article] Plant-wide dynamic and static optimisation of supermarket refrigeration systems = Optimisation dynamique et statique au niveau de l'ensemble du système frigorifique dans des supermarchés [texte imprimé] / Torben Green, Auteur ; Roozbeh Izadi-Zamanabadi, Auteur ; Roozbeh Razavi-Far, Auteur . - 2014 . - pp. 106–117. Refrigeration Langues : Anglais (eng) in International journal of refrigeration > Vol. 38 (Février 2014) . - pp. 106–117 Mots-clés : Control;  Refrigeration  systems;  Active  system  monitoring;  Performance  optimization;  Performance  assessment Résumé : Optimising the operation of a supermarket refrigeration system under dynamic as well as steady state conditions is addressed in this paper. For this purpose an appropriate performance function that encompasses food quality, system efficiency, and also component reliability is established. The choice of setup parameters, which are necessary for system performance optimisation, depends on whether the system operates under steady state or dynamic conditions. While operating under steady state conditions, the total system performance is shown to predominantly be influenced by the suction pressure. The dynamic optimisation requires use of dedicated excitation signals. A method for designing such signals under realistic operational conditions is proposed. A derivative free optimisation technique based on Invasive Weed Optimisation (IWO) is utilised to optimise the parameters of the controllers in the system. Simulation results is used to substantiate the suggested methodology. En ligne : http://www.sciencedirect.com/science/article/pii/S014070071300217X