Absorption Cycle Heat Pump Model for Control Design

Kasper Vinther; Rene Just Nielsen; Kirsten Mølgaard Nielsen; Palle Andersen; Tom Søndergård Pedersen; Jan Dimon Bendtsen

doi:10.1109/ECC.2015.7330870

Absorption Cycle Heat Pump Model for Control Design

Kasper Vinther, Rene Just Nielsen, Kirsten Mølgaard Nielsen, Palle Andersen, Tom Søndergård Pedersen, Jan Dimon Bendtsen

Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › peer-review

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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 language	English
Title of host publication	Control Conference (ECC), 2015 European
Number of pages	7
Publisher	IEEE Press
Publication date	Nov 2015
Pages	2228 - 2234
ISBN (Electronic)	978-3-9524269-3-7
DOIs	https://doi.org/10.1109/ECC.2015.7330870
Publication status	Published - Nov 2015
Event	European Control Conference - Linz, Austria Duration: 15 Jul 2015 → 17 Jul 2015

Conference

Conference	European Control Conference
Country/Territory	Austria
City	Linz
Period	15/07/2015 → 17/07/2015

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@inproceedings{82656e1a0ecc47debb479000c9c498b0,

title = "Absorption Cycle Heat Pump Model for Control Design",

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. {\textcopyright} Copyright IEEE - All rights reserved. ",

author = "Kasper Vinther and {Just Nielsen}, Rene and Nielsen, {Kirsten M{\o}lgaard} and Palle Andersen and Pedersen, {Tom S{\o}nderg{\aa}rd} and Bendtsen, {Jan Dimon}",

year = "2015",

month = nov,

doi = "10.1109/ECC.2015.7330870",

language = "English",

pages = "2228 -- 2234",

booktitle = "Control Conference (ECC), 2015 European",

publisher = "IEEE Press",

note = "European Control Conference ; Conference date: 15-07-2015 Through 17-07-2015",

}

TY - GEN

T1 - Absorption Cycle Heat Pump Model for Control Design

AU - Vinther, Kasper

AU - Just Nielsen, Rene

AU - Nielsen, Kirsten Mølgaard

AU - Andersen, Palle

AU - Pedersen, Tom Søndergård

AU - Bendtsen, Jan Dimon

PY - 2015/11

Y1 - 2015/11

N2 - 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.

AB - 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.

U2 - 10.1109/ECC.2015.7330870

DO - 10.1109/ECC.2015.7330870

M3 - Article in proceeding

SP - 2228

EP - 2234

BT - Control Conference (ECC), 2015 European

PB - IEEE Press

T2 - European Control Conference

Y2 - 15 July 2015 through 17 July 2015

ER -

Absorption Cycle Heat Pump Model for Control Design

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