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Air source heat pump systems: control strategy based on the knowledge of the time evolution of the electricity price in the Italian context.

Number: pap. 3218

Author(s) : BEE E., PRADA A., BAGGIO P.

Summary

The transition toward a distributed energy system and the increased power generation from renewable energy sources, that have low predictability, obviously affects the management of the grid. One of the consequences to be expected is a larger variation of the electricity prices (according to the season and/or the time of the day) as a function of the availability of the renewable sources. Assuming that the electricity hourly tariff is known in advance, it can be used as an input data to take decision about the heat pump control. In particular it could be convenient to run the unit at a higher capacity (e.g. by increasing the set point) when the electricity price is low, in order to store energy to be used when the tariff rises. However, increasing water storage set point or the ambient set point, also increases the system losses, and consequently it is not clear in advance whether this approach can lead to money saving or not. This study aims to investigate the potential money saving by means of a simulations analysis.

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Pages: 6

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Details

  • Original title: Air source heat pump systems: control strategy based on the knowledge of the time evolution of the electricity price in the Italian context.
  • Record ID : 30024748
  • Languages: English
  • Source: 2018 Purdue Conferences. 5th International High Performance Buildings Conference at Purdue.
  • Publication date: 2018/07/09

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