Analysis of deep-heat energy wells for heat pump systems

Tutkimustuotos: Artikkeli kirjassa/konferenssijulkaisussaConference contributionScientificvertaisarvioitu

1 Sitaatiot (Scopus)

Abstrakti

Deep decarbonization of energy systems benefits from increased flexibility capabilities such as sector-coupling to heating through power-to-heat (P2H) conversion. Here the applicability of 2 km deep boreholes in rock for heat source and heat storage in heat pump systems supporting P2H schemes are analyzed through numerical 3D simulations. Due to higher rock temperature and deeper wells, a single 2 km hole corresponds to 30 conventional 300-m boreholes, thus enabling better use of ground heat pump systems in urban areas. A coaxial deep-heat well could produce 110 kW (55 W/m) in Finnish conditions. Regenerating the well (heat storage) for 1 month through P2H could improve the performance by over 10%. The deep-well could absorb even up to 1 MW charging power in short cycles. The deep-heat well performance is affected by geophysical parameters e.g. properties of the rock, structure of the borehole heat exchanger, flow conditions, and operational strategies. The results can also be applied to other conditions through alternative borehole configurations (e.g. using lining).

AlkuperäiskieliEnglanti
OtsikkoProceedings of 2020 IEEE PES Innovative Smart Grid Technologies Europe, ISGT-Europe 2020
KustantajaIEEE
Sivut574-578
Sivumäärä5
ISBN (elektroninen)9781728171005
DOI - pysyväislinkit
TilaJulkaistu - 26 lokakuuta 2020
OKM-julkaisutyyppiA4 Artikkeli konferenssijulkaisuussa
TapahtumaIEEE PES Europe Conference on Innovative Smart Grid Technologies - Virtual, Online
Kesto: 26 lokakuuta 202028 lokakuuta 2020

Julkaisusarja

NimiIEEE PES Innovative Smart Grid Technologies Conference Europe
KustantajaIEEE
ISSN (painettu)2165-4816
ISSN (elektroninen)2165-4824

Conference

ConferenceIEEE PES Europe Conference on Innovative Smart Grid Technologies
LyhennettäISGT Europe
KaupunkiVirtual, Online
Ajanjakso26/10/202028/10/2020
MuuVirtual conference

Sormenjälki Sukella tutkimusaiheisiin 'Analysis of deep-heat energy wells for heat pump systems'. Ne muodostavat yhdessä ainutlaatuisen sormenjäljen.

Siteeraa tätä