Absorption Cycle Heat Pump Model for Control Design

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Abstract

Heat pumps have recently received increasing interest due to green energy initiatives and increasing energy prices. In this paper, a nonlinear dynamic model of a single-effect LiBr-water absorption cycle heat pump is derived for simulation and control design purposes. The model is based on an actual heat pump located at a larger district heating plant. The model is implemented in Modelica and is based on energy and mass balances, together with thermodynamic property functions for LiBr and water and staggered grid representations for heat exchangers. Model parameters have been fitted to operational data and different scenarios are simulated to investigate the operational stability of the heat pump. Finally, this paper provides suggestions and examples of derivation of lower order linear models for control design. © Copyright IEEE - All rights reserved.
Original languageEnglish
Title of host publicationControl Conference (ECC), 2015 European
Number of pages7
PublisherIEEE Press
Publication dateNov 2015
Pages2228 - 2234
ISBN (Electronic)978-3-9524269-3-7
DOIs
Publication statusPublished - Nov 2015
EventEuropean Control Conference - Linz, Austria
Duration: 15 Jul 201517 Jul 2015

Conference

ConferenceEuropean Control Conference
CountryAustria
CityLinz
Period15/07/201517/07/2015

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