Impact of Open-Loop Systems on Groundwater Temperature in NE Slovenia

Simona Adrinek (Author), Mitja Janža (Author), Mihael Brenčič (Author)

Abstract

To achieve sustainable and efficient use of shallow geothermal resources, it is important to understand the heat transfer in the subsurface of the planned geothermal system. In the City Municipality of Murska Sobota, NE Slovenia, the use of geothermal open-loop systems has increased in recent years. Their high spatial density raises the question of possible mutual interference between the systems. By compiling geological, hydrogeological, and thermal data, obtained from the monitoring network, fieldwork, and knowledge of regional hydrogeological conditions, we have developed a transient groundwater flow and heat transfer model to evaluate the impact of the open-loop systems on the subsurface and surrounding systems. The transient simulation showed that the thermal state in the observed area is restored over the summer, when the systems are not in operation. Also, the systems do not have significant mutual interference that would affect their efficiency. However, as interest in installing new systems in the area increases, simulations of the thermal plumes of new geothermal systems are needed to ensure sustainable and efficient use of shallow geothermal energy in the future.

Keywords

podzemna voda;termalna voda;geotermalna energija;toplotna črpalka;numerično modeliranje;sistem odprte zanke;vodonosnik;medzrnska poroznost;

Data

Language:	English
Year of publishing:	2023
Typology:	1.01 - Original Scientific Article
Organization:	UL NTF - Faculty of Natural Sciences and Engineering
Publisher:	MDPI
UDC:	556.3
COBISS:	164848131
ISSN:	2071-1050
Views:	15
Downloads:	2
Average score:	0 (0 votes)
Metadata:

Other data

Pages:	24 str.
Volume:	ǂvol. ǂ15
Issue:	ǂno. ǂ18
Chronology:	2023
DOI:	10.3390/su151813797
ID:	19949818