An application of seasonal borehole thermal energy system in Finland

Borehole thermal energy system is an important component of the future low temperature heating networks. Applications of such systems are available around the world presenting various configurations. However, the mobility of the system from solar assisted to industrial heat has not yet evaluated. A...

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Main Authors: Hafiz Haq, Petri Välisuo, Lucio Mesquita, Lauri Kumpulainen, Seppo Niemi
Format: Article
Language:English
Published: Elsevier 2021-06-01
Series:Cleaner Engineering and Technology
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2666790821000082
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spelling doaj-f3bbd148714f41db83b956838a4be9092021-07-01T04:35:58ZengElsevierCleaner Engineering and Technology2666-79082021-06-012100048An application of seasonal borehole thermal energy system in FinlandHafiz Haq0Petri Välisuo1Lucio Mesquita2Lauri Kumpulainen3Seppo Niemi4School of Technology and Innovation, University of Vaasa, Vaasa, Finland; Corresponding author.School of Technology and Innovation, University of Vaasa, Vaasa, FinlandNatural Resources Canada, CanmetENERGY, Ottawa, Ontario, CanadaSchool of Technology and Innovation, University of Vaasa, Vaasa, FinlandSchool of Technology and Innovation, University of Vaasa, Vaasa, FinlandBorehole thermal energy system is an important component of the future low temperature heating networks. Applications of such systems are available around the world presenting various configurations. However, the mobility of the system from solar assisted to industrial heat has not yet evaluated. A 3D model of borehole thermal energy system created similar to Drake landing solar community project configuration. This model is validated with experimental measurements. The accuracy of the model estimated at 95%. Experimental measurements further utilized to create an artificial neural network model to predict modes of operation (charging/discharging). The accuracy of the model calculated at 97%. This study presents a possible application of storing excess heat from combined heat and power plants in Sodankylä, Finland. The municipality of Sodankylä is planning construction of new combined heat and power plants. These plants systematically shutdown during summer season leaving 1.53 ​MW of excess heat. The heat surplus can be stored in a heat storage. Simulations reveal that the model has storage capacity between 250 ​kW and 285 ​kW. In addition, there is a potential of five borehole thermal energy storage to store the entire excess heat. The novelty of the study is to test the mobility of borehole thermal energy system from solar assisted storage to industrial excess heat storage. The model used in a standardized manner considering the conventional combined heat and power plants supply temperature for working configuration of heat storage.http://www.sciencedirect.com/science/article/pii/S2666790821000082borehole Thermal energy storage4G district heating system3D model of ground heat storageArtificial neural network modelLow temperature heating network
collection DOAJ
language English
format Article
sources DOAJ
author Hafiz Haq
Petri Välisuo
Lucio Mesquita
Lauri Kumpulainen
Seppo Niemi
spellingShingle Hafiz Haq
Petri Välisuo
Lucio Mesquita
Lauri Kumpulainen
Seppo Niemi
An application of seasonal borehole thermal energy system in Finland
Cleaner Engineering and Technology
borehole Thermal energy storage
4G district heating system
3D model of ground heat storage
Artificial neural network model
Low temperature heating network
author_facet Hafiz Haq
Petri Välisuo
Lucio Mesquita
Lauri Kumpulainen
Seppo Niemi
author_sort Hafiz Haq
title An application of seasonal borehole thermal energy system in Finland
title_short An application of seasonal borehole thermal energy system in Finland
title_full An application of seasonal borehole thermal energy system in Finland
title_fullStr An application of seasonal borehole thermal energy system in Finland
title_full_unstemmed An application of seasonal borehole thermal energy system in Finland
title_sort application of seasonal borehole thermal energy system in finland
publisher Elsevier
series Cleaner Engineering and Technology
issn 2666-7908
publishDate 2021-06-01
description Borehole thermal energy system is an important component of the future low temperature heating networks. Applications of such systems are available around the world presenting various configurations. However, the mobility of the system from solar assisted to industrial heat has not yet evaluated. A 3D model of borehole thermal energy system created similar to Drake landing solar community project configuration. This model is validated with experimental measurements. The accuracy of the model estimated at 95%. Experimental measurements further utilized to create an artificial neural network model to predict modes of operation (charging/discharging). The accuracy of the model calculated at 97%. This study presents a possible application of storing excess heat from combined heat and power plants in Sodankylä, Finland. The municipality of Sodankylä is planning construction of new combined heat and power plants. These plants systematically shutdown during summer season leaving 1.53 ​MW of excess heat. The heat surplus can be stored in a heat storage. Simulations reveal that the model has storage capacity between 250 ​kW and 285 ​kW. In addition, there is a potential of five borehole thermal energy storage to store the entire excess heat. The novelty of the study is to test the mobility of borehole thermal energy system from solar assisted storage to industrial excess heat storage. The model used in a standardized manner considering the conventional combined heat and power plants supply temperature for working configuration of heat storage.
topic borehole Thermal energy storage
4G district heating system
3D model of ground heat storage
Artificial neural network model
Low temperature heating network
url http://www.sciencedirect.com/science/article/pii/S2666790821000082
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