From Consumption to Prosumption - Operational Cost Optimization for Refrigeration System With Heat Waste Recovery

Publikation: Bidrag til tidsskriftKonferenceartikel i tidsskriftForskningpeer review

Abstract

Implementation of liquid cooling transforms a refrigeration system into a combined cooling and heating system. Reclaimed heat can be used for building heating purposes or can be sold. Carbon dioxide based refrigeration systems are considered to have a particularly high potential for becoming ecient heat energy producers. In this paper a CO2 system that operates in the subcritical region is examined. Modelling approach is presented, and used for operation optimisation by way of non-linear model predictive control techniques. Assuming that the heat is sold when using both objective functions, it turns out that the system have negative operational cost. In case when Cost Minimization objective function is used daily revenue is about 7:9 [eur], for Prosumption one it is 11:9 [eur].
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Detaljer

Implementation of liquid cooling transforms a refrigeration system into a combined cooling and heating system. Reclaimed heat can be used for building heating purposes or can be sold. Carbon dioxide based refrigeration systems are considered to have a particularly high potential for becoming ecient heat energy producers. In this paper a CO2 system that operates in the subcritical region is examined. Modelling approach is presented, and used for operation optimisation by way of non-linear model predictive control techniques. Assuming that the heat is sold when using both objective functions, it turns out that the system have negative operational cost. In case when Cost Minimization objective function is used daily revenue is about 7:9 [eur], for Prosumption one it is 11:9 [eur].
OriginalsprogEngelsk
BogserieIFAC-PapersOnLine
Volume/Bind50
Tidsskriftsnummer1
Sider (fra-til)11257-11262
Antal sider6
ISSN2405-8963
DOI
StatusUdgivet - 1 aug. 2017
PublikationsartForskning
Peer reviewJa
Begivenhed2017 IFAC Congress -
Varighed: 9 jul. 201714 jul. 2017
https://www.ifac2017.org/

Konference

Konference2017 IFAC Congress
Periode09/07/201714/07/2017
Internetadresse
ID: 267105937