<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>This article focuses on decreasing the energy taken from the electrical grid by air to water heat pumps in buildings that use renewable energy. Conventionally the majority of the produced renewable energy is not used directly to operate the heat pump. An energy management concept was developed, with a main new parameter – <italic>RCOP</italic> that enables to create an optimal working schedule that considers the renewable energy availability and heat pump coefficient of performance in relation to the weather. The concept was proven with computer models that use weather forecasts, renewable energy production, and heat demand. The achieved yearly savings in grid-electricity used by the heat pump were 14.3 %. The fluctuations in the grid load were decreased which as well were quantified by a lower standard deviation of the demand. In months with the best renewable energy availability, the grid electricity savings can reach up to 70 %.</p>
</abstract>

This article focuses on decreasing the energy taken from the electrical grid by air to water heat pumps in buildings that use renewable energy. Conventionally the majority of the produced renewable energy is not used directly to operate the heat pump. An energy management concept was developed, with a main new parameter – RCOP that enables to create an optimal working schedule that considers the renewable energy availability and heat pump coefficient of performance in relation to the weather. The concept was proven with computer models that use weather forecasts, renewable energy production, and heat demand. The achieved yearly savings in grid-electricity used by the heat pump were 14.3 %. The fluctuations in the grid load were decreased which as well were quantified by a lower standard deviation of the demand. In months with the best renewable energy availability, the grid electricity savings can reach up to 70 %.

Decreasing the Load of Air to Water Heat Pump Systems on Electrical Grids

Environmental and Climate Technologies

This work is licensed under the Creative Commons Attribution 4.0 International License.

{"article-title":"Decreasing the Load of Air to Water Heat Pump Systems on Electrical Grids"}

This article focuses on decreasing the energy taken from the electrical grid by air to water heat pumps in buildings that use renewable energy. Conventionally...

Decreasing the Load of Air to Water Heat Pump Systems on Electrical Grids

Published Online: Jun 15, 2022

Page range: 357 - 364

DOI: https://doi.org/10.2478/rtuect-2022-0027

Keywords
Forecasting, HVAC control, heat storage, renewable energy coefficient of performance, self-consumption

© 2022 Heino Pihlap et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Decreasing the Load of Air to Water Heat Pump Systems on Electrical Grids

Published Online: Jun 15, 2022

Page range: 357 - 364

DOI: https://doi.org/10.2478/rtuect-2022-0027

KeywordsForecasting, HVAC control, heat storage, renewable energy coefficient of performance, self-consumption

© 2022 Heino Pihlap et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Keywords
Forecasting, HVAC control, heat storage, renewable energy coefficient of performance, self-consumption