Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5000404 | Control Engineering Practice | 2017 | 15 Pages |
Abstract
Parameter estimation of a multi-stage, multi-load-demand refrigeration plant is addressed. It is shown that dominating system dynamics are those of heat exchangers, and their heat-transfer-related parameters affect system statics but barely influence system dynamics. A novel identification procedure focused on the heat exchangers is presented. It is based on non-measurable refrigerant phase-change zones, considering an overall heat transfer coefficient at each zone. Consistent values of all parameters are obtained considering only steady-state experimental data and some orders of magnitude found in the literature. The identified parameters are validated considering the two-stage, two-load-demand plant configuration.
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Authors
David RodrÃguez, Guillermo Bejarano, José A. Alfaya, Manuel G. Ortega, Fernando Castaño,