An integrated 3D approach to assess the geothermal heat-exchange potential: The case study of western Sicily (southern Italy)

被引：19

作者：

Santilano, Alessandro ^{[1
,2
]}

Donato, Assunta ^{[1
,7
]}

Galgaro, Antonio ^{[1
,3
]}

Montanari, Domenico ^{[1
]}

Menghini, Antonio ^{[4
]}

Viezzoli, Andrea ^{[4
]}

Di Sipio, Eloisa ^{[5
]}

Destro, Elisa ^{[6
]}

Manzella, Adele ^{[1
]}

机构：

[1] CNR, Natl Res Council, Inst Geosci & Earth Resources, I-00185 Rome, Italy

[2] Politecn Torino, Dept Environm Land & Infrastruct Engn, I-10129 Turin, Italy

[3] Univ Padua, Dept Geosci, I-35100 Padua, Italy

[4] Aarhus Geophys, Aarhus, Denmark

[5] Univ Erlangen Nurnberg, GeoZentrum Nordbayern, Erlangen, Germany

[6] Univ Padua, Dept Land Environm Agr & Forestry, I-35100 Padua, Italy

[7] Univ Florence, Dept Earth Sci, I-50121 Florence, Italy

来源：

RENEWABLE ENERGY | 2016年 / 97卷

关键词：

Borehole heat exchangers; Geothermal energy; Ground thermal conductivity; Heat-exchange ground potential; 3D geological modelling; Airborne electromagnetics; THERMAL-CONDUCTIVITY; MAPS; SYSTEMS; ENERGY; AREAS; ROCKS;

D O I：

10.1016/j.renene.2016.05.072

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

This paper presents a multidisciplinary methodology to estimate the underground heat-exchange potential for Borehole Heat Exchangers (BHEs) coupled with Ground Source Heat Pumps (GSHPs) over wide areas. The proposed methodology was tested in four sites in western Sicily (southern Italy) where the shortage of subsurface geological data, in addition to the undefined authorization processes for this kind of system, is probably the main barrier to planning and exploiting geothermal heat for heating and cooling purposes. Reliable high-resolution 3D geological and petrophysical models were built based on the integration of airborne electromagnetic data and laboratory measurements of the thermal properties of rock samples. A GIS-based procedure was applied to assess the geothermal heat-exchange potential using 3D models of thermal conductivity as the main input. The results of the analyses are represented by thematic maps of the underground heat exchange potential for BHEs coupled with GSHPs. The study areas show a generally high suitability for the use of this technology and several municipalities in the area could take advantage of the resulting maps for energy planning. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：611 / 624

页数：14