Geothermal potential of

the Euroregion.

Daniel Trisant. Shallow Geothermal

Committee of the “Col·legi de Geòlegs de

Catalunya”

Our Anomalies our reality

Faults:

“Horst Graben” systems

Young Mountains

Deep Sedimentary basins

Volcanoes systems

Thermal springs

© Institut Geològic de Catalunya

López García, J.M. (2007)

Current deep geothermal

Mining Concessions in

Euroregion

Recource: Section D

Concessions

in EUROREGION

© IGME Catastro Minero WMS server

Geothermal resources

Section D concessions

Concessions

in EUROREGION

© IGME Catastro Minero WMS server

Concessions

in EUROREGION

Direction Générale de l’Énergie et du climat

Bureau explotaion production des hydrocarbures

SITE INVESTIGATION:

DESK STUDY

Contaminated ground

Buried Services

Geological and hydrological prognosis

LEGAL AND REGULATORY ISSUES

SITE INVESTIGATION

Hydraulic Testing

Thermal Response Testing (TRT)

Thermogeology

Conductivity

Specific heat capacity

Temperature of ground

Climate data

Geothermal gradient

SITE

INVESTIGATION

Thermal conductivity

SPECIFIC HEAT CAPACITY

VOLUMETRIC

HEAT CAPACITY

MJ/m3ºK

Thermal

conductivity

W/mºK

Banks, D.(2008)

Thermal diffusivity m2/day

Banks, D.(2008)

TEMPERATURE

OF SOIL

Andersson, O. (2011)

CLIMATE

DATA

Comfort Zone

BOREAL OCEANIC CONTINENTAL MEDITERRANEAN

Climate data

vs HP COP

Climate

data

Climate data

Annual mean

Temperature

at soil level

THERMAL RESPONSE TEST

In a TRT we mesure:

To = “far-field” initial average ground temperature

T/Km = Geothermal Gradient

ʎ (W/mºK) = Effective thermal conductivity

Svc (MJ/m3ºK) = Volumetric heat capacity of rock

Rb (ºKm/W) = Borehole thermal resistance

α m2/day = Diffusivity

SITE

INVESTIGATION

Installed capacity shallow

geothermal systems at

Euroregion countries

SHALLOW

GEOTHERMAL

POTENCIAL

SHALLOW

GEOTHERMAL

POTENCIAL

By geothermal flux

© Institut Geològic de Catalunya

Potential “rift”deep granite site

Potential “rift”deep site

Potential deep sedimentary basin granite site

Potential deep sedimentary basin site

ºC m Example:

Residential Building:

Heat demand only

GSHP : 50 kw

516 ml BHE

Good conductivity: Granite

High geothermal flux

High temperature gradient

Vallès (Catalonian)

SHALLOW

GEOTHERMAL

POTENCIAL

By geothermal flux

SHALLOW

GEOTHERMAL

POTENCIAL

By geothermal flux

By hidrogeology

© IGME Hidrogeological map of SPAIN 1:1000000

Example: Hotel Building:

Heat & Cool demand

GSHP : 300 kw

4000 ml BHE

Poor conductivity: Porous

Limestone

Mallorca

Heat Capacity of BHE during TRT

Hidrogeological good conditions

SHALLOW

GEOTHERMAL

POTENCIAL

By geothermal flux

By hidrogeology

Example: Industrial Usage (oyster):

Heat & Cool demand

GSHP : 89 kWf -109 kWt

COP: 4,4

Sea Water exchange

Leucate, Roussillon

SHALLOW

GEOTHERMAL

POTENCIAL

By geothermal flux

By hidrogeology

SHALLOW

GEOTHERMAL

POTENCIAL

By geothermal flux

By hidrogeology

By climate/

Demand building

BARCELONA

SHALLOW

GEOTHERMAL

POTENCIAL

By geothermal flux

By hidrogeology

By climate/

Demand building

Example: Hotel Building:

Heat & Cool demand

THPE design 60 kWh/m2/y

GSHP : 50 kW + 40kW ACS

Surface: 2200 m2

1900 ml BHE

UTES system: Temp 10-22 ºC

Saving on CO2 :80% reduction

Tolouse, Midi-Pyrénées

SHALLOW

GEOTHERMAL

POTENCIAL

By geothermal flux

By hidrogeology

By climate/

Demand building

SHALLOW

GEOTHERMAL

POTENCIAL

By geothermal flux

By hidrogeology

By climate/

Demand building

By conductivity

© IGME BRGM One Geology Project WMS server

Example: Barcelona (Catalonia)

Hospital de la Santa Creu i Sant Pau

UNESCO World Heritage Site SHALLOW

GEOTHERMAL

POTENCIAL

By geothermal flux

By hidrogeology

By climate/

Demand building

By conductivity

Example: Barcelona (Catalonia)

Total surface Buildings 22.250 m2

Total surface Gardens 15.000 m2 SHALLOW

GEOTHERMAL

POTENCIAL

By geothermal flux

By hidrogeology

By climate/

Demand building

By conductivity

Example: Barcelona (Catalonia)

Heat & Cooling: 3000 kW

Total demand: 3.400 MWh/year

34920 ml with 291 BHE

4 Tube-System, simultaneous

heating & cooling

High COP & EER

Each building independent

system

Centralizated control and

monitoring

Good Conductivity:

Granite+slate

Space width for BHEx

SHALLOW

GEOTHERMAL

POTENCIAL

By geothermal flux

By hidrogeology

By climate/

Demand building

By conductivity

Example: Barcelona (Catalonia)

Buried GSHP room

No combustion

Noiseless

No heat air through atmosphere

No visual perturbance

No chimney

SHALLOW

GEOTHERMAL

POTENCIAL

By geothermal flux

By hidrogeology

By climate/

Demand building

By conductivity

Euroregion regulations

REGLAMENTATION

CODE MINIER article 131

“Forages d’une profondeur

spérieure à 10 mètres”

CODE de

l’ENVIRONNEMENT

réglementation loi sur l’EAU

Ley de Minas Capítulo I

Artículo 1

Ley de Minas Título I Sección

B “Aguas”

R.D. 863/1985 RGNBSM

I.T.C. 06.0.06

Transferred to every C.C.A.A

RULES

Norme NF X 10-999 “Forage d’eau et

de géothermie- Réalisation, suivi et

abandon d’ouvrages de captage ou de

survellance des eaux souterraines

réalisés par forages”

Norme NF X 10-980 ”Forage d’eau et

de géothermie-Démarches

administratives

Norme NF X 10-970-“Forage d’eau et

de géothermie – Sonde géothermique

verticale, Realisation, mise en oeuvre,

abandon”

Norme NF X 10-960 Sonde

géothermique verticale Part 1;2;3;4

PR NF EN ISO 17628

“Reconnaissance et essais

géotechniques – Essais

géothermiques”

Incoming.....

PNE 100715-1: Diseño, ejecución y

seguimiento de una instalación

geotérmica somera. Parte 1: Sistemas

de circuito cerrado vertical

Accreditations & certifications

NFPAC normative obligation

regarding quality and performance

for machines under 50 Kw

QUALIPAC quality label for HP

installers

QUALIFORAGE, quality label for

vertical heat exhanger

Drillers

AQUAPAC, insurance scheme for

geothermal water wells for the first

well of the doublet and long term

insurance covering the exploitation

period

AFPG creation in 2010 aiming to

create a geothermal certification

scheme including all kind of low

temperature geothermal inst.

Guia Tecnica Design of Ground

Source Heat Pumps IDAE

Manual de Climatización

Geotérmica ACLUXEGA

GEO+ APPA quality certification

Thanks for your attention !

Daniel Trisant

Geologist consultant at

March 2014