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Modelling and simulation of a seasonal underground water storage coupled with photovoltaic panels, heat pump and district heating network for providing local renewable heating to a residential district
Cendoya, Aitor; Ransy, Frédéric; Lemort, Vincent et al.
2024In PROCEEDINGS OF ECOS 2024 - THE 37TH INTERNATIONAL CONFERENCE ON EFFICIENCY, COST, OPTIMIZATION, SIMULATION AND ENVIRONMENTAL IMPACT OF ENERGY SYSTEMS
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Keywords :
Seasonal Underground Stratified Energy Storage Dynamic simulation; Renewable energy; District heating; Decarbonisation; Abandoned mines
Abstract :
[en] Energy storage is a key component to face the intermittence of renewable energy and achieve decarbonization of the electricity grid by 2050. In this regard, this paper assesses the potential of seasonal energy storage in flooded underground mines. The analysis is based on a case study of a slate mine in Martelange, southern Belgium. The models presented assess the heating and cooling energy demands of a complex of 50 apartments. The study site comprises a photovoltaic plant, which supplies a water-to-water Heat Pump (HP), that is used to heat an underground cavern of 6840 m3 flooded with water, while an adjacent cavern of 80000 m3 is used as a cold reservoir. The hot cavern is charging during the summer period, reaching a maximum temperature of 55°C, and discharging in winter until 40 °C. The District Heating Network (DHN) is modelled to transport the hot water to each apartment where a buffer tank is used to reheat the water by a secondary HP for Domestic Heat Water. The system has been modelled in Dymola and simulated for 4 years with a step time of 15 minutes. The study case can cover 76.7% of the total building heating demand throughout the DHN, within a COP of 2.86. These results underline the potential of reusing mine caverns for robust energy storage solutions, promoting a shift towards renewables and establishing opportunities for interconnected multi-system grids.
Disciplines :
Energy
Author, co-author :
Cendoya, Aitor  ;  Université de Liège - ULiège > Aérospatiale et Mécanique (A&M)
Ransy, Frédéric ;  Université de Liège - ULiège > Aérospatiale et Mécanique (A&M)
Lemort, Vincent  ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Thermodynamique appliquée
Kozlowska, Natalia ;  Université de Liège - ULiège > Aérospatiale et Mécanique (A&M)
Dewallef, Pierre ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Systèmes de conversion d'énergie pour un dévelopement durable
Windeshausen, Jacques;  Wingest Energy
Language :
English
Title :
Modelling and simulation of a seasonal underground water storage coupled with photovoltaic panels, heat pump and district heating network for providing local renewable heating to a residential district
Publication date :
30 June 2024
Event name :
37th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems
Event organizer :
ECOS
Event place :
Rhodes, Greece
Event date :
30th of June - 5th of July
Event number :
37
Audience :
International
Main work title :
PROCEEDINGS OF ECOS 2024 - THE 37TH INTERNATIONAL CONFERENCE ON EFFICIENCY, COST, OPTIMIZATION, SIMULATION AND ENVIRONMENTAL IMPACT OF ENERGY SYSTEMS
Publisher :
ECOS2024, Rhodes, Unknown/unspecified
Pages :
12
Peer reviewed :
Editorial reviewed
Development Goals :
7. Affordable and clean energy
Additional URL :
Name of the research project :
ARDNRgy
Funders :
Région wallonne
Available on ORBi :
since 23 August 2024

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