Optimal control of thermal energy storage for a solar energy driven refrigeration plant to cool a fruit storage facility

Research output: Contribution to conferenceAbstract

Abstract

There is a growing need to adjust electricity consumption to electricity generation due to the rising share of electricity generation from solar and wind energy. Refrigerated storage can support this by thermal energy storage in e.g. an ice buffer. Aim of this study is to investigate how optimal control can help to optimize the exploitation of an ice buffer.In this study the controlled system has a number of cold rooms for fruit storage, a refrigeration plant, and an ice buffer, connected by a network of pipes in which a brine circulates. Electric energy is supplied from local PV panels, supported by the power grid. It is shown how the formation and melting of ice is adjusted to forecasted electricity tariffs.The results demonstrate how an optimally controlled ice buffer can help to shape the electric energy consumption, while maintaining temperatures in the storage rooms.
Original languageEnglish
Publication statusPublished - 2019
EventThe 25th IIR International Congress of Refrigeration - Palais des congres de Montreal, Montreal, Canada
Duration: 24 Aug 201930 Aug 2019

Conference

ConferenceThe 25th IIR International Congress of Refrigeration
Abbreviated titleICR 2019
CountryCanada
CityMontreal
Period24/08/1930/08/19

Keywords

  • control (automatic)
  • energy storage
  • solar energy
  • storage

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