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Achieving Lower District Heating Network Temperatures Using Feed-Forward MPC
The focus of this work is to present the feasibility of lowering the supply and return temperatures of district heating networks in order to achieve energy savings through the implementation of feed-forward model predictive control. The current level of district heating technology dictates a need fo...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6696394/ https://www.ncbi.nlm.nih.gov/pubmed/31382435 http://dx.doi.org/10.3390/ma12152465 |
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author | Zimmerman, Nathan Kyprianidis, Konstantinos Lindberg, Carl-Fredrik |
author_facet | Zimmerman, Nathan Kyprianidis, Konstantinos Lindberg, Carl-Fredrik |
author_sort | Zimmerman, Nathan |
collection | PubMed |
description | The focus of this work is to present the feasibility of lowering the supply and return temperatures of district heating networks in order to achieve energy savings through the implementation of feed-forward model predictive control. The current level of district heating technology dictates a need for higher supply temperatures, which is not the case when considering the future outlook. In part, this can be attributed to the fact that current networks are being controlled by operator experience and outdoor temperatures. The prospects of reducing network temperatures can be evaluated by developing a dynamic model of the process which can then be used for control purposes. Two scenarios are presented in this work, to not only evaluate a controller’s performance in supplying lower network temperatures, but to also assess the boundaries of the return temperature. In Scenario 1, the historical load is used as a feed-forward signal to the controller, and in Scenario 2, a load prediction model is used as the feed-forward signal. The findings for both scenarios suggest that the new control approach can lead to a load reduction of 12.5% and 13.7% respectively for the heat being supplied to the network. With the inclusion of predictions with increased accuracy on end-user demand and feed-back, the return temperature values can be better sustained, and can lead to a decrease in supply temperatures and an increase in energy savings on the production side. |
format | Online Article Text |
id | pubmed-6696394 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-66963942019-09-05 Achieving Lower District Heating Network Temperatures Using Feed-Forward MPC Zimmerman, Nathan Kyprianidis, Konstantinos Lindberg, Carl-Fredrik Materials (Basel) Article The focus of this work is to present the feasibility of lowering the supply and return temperatures of district heating networks in order to achieve energy savings through the implementation of feed-forward model predictive control. The current level of district heating technology dictates a need for higher supply temperatures, which is not the case when considering the future outlook. In part, this can be attributed to the fact that current networks are being controlled by operator experience and outdoor temperatures. The prospects of reducing network temperatures can be evaluated by developing a dynamic model of the process which can then be used for control purposes. Two scenarios are presented in this work, to not only evaluate a controller’s performance in supplying lower network temperatures, but to also assess the boundaries of the return temperature. In Scenario 1, the historical load is used as a feed-forward signal to the controller, and in Scenario 2, a load prediction model is used as the feed-forward signal. The findings for both scenarios suggest that the new control approach can lead to a load reduction of 12.5% and 13.7% respectively for the heat being supplied to the network. With the inclusion of predictions with increased accuracy on end-user demand and feed-back, the return temperature values can be better sustained, and can lead to a decrease in supply temperatures and an increase in energy savings on the production side. MDPI 2019-08-02 /pmc/articles/PMC6696394/ /pubmed/31382435 http://dx.doi.org/10.3390/ma12152465 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Zimmerman, Nathan Kyprianidis, Konstantinos Lindberg, Carl-Fredrik Achieving Lower District Heating Network Temperatures Using Feed-Forward MPC |
title | Achieving Lower District Heating Network Temperatures Using Feed-Forward MPC |
title_full | Achieving Lower District Heating Network Temperatures Using Feed-Forward MPC |
title_fullStr | Achieving Lower District Heating Network Temperatures Using Feed-Forward MPC |
title_full_unstemmed | Achieving Lower District Heating Network Temperatures Using Feed-Forward MPC |
title_short | Achieving Lower District Heating Network Temperatures Using Feed-Forward MPC |
title_sort | achieving lower district heating network temperatures using feed-forward mpc |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6696394/ https://www.ncbi.nlm.nih.gov/pubmed/31382435 http://dx.doi.org/10.3390/ma12152465 |
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