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Slide No. 0. © 2011 ISATech ltd.. Atlas of the Mine Water Geothermal Potential in the Czech Republic
ISATech ltd.®
Industrial Safety Assessment Technicians
Petr Novák1*, Jana Kasíková1, Michal Vaněček1,
Milan Brož2, Jan Uhlík3, Martin Šindelář4, Jiří Záruba4
1* ISATech ltd., [email protected] 2 IRSM Czech Academy of Science v.v.i.
3 PROGEO ltd.
4 ARCADIS Geotechnika corp.
Atlas of the Mine Water
Geothermal Potential
in the Czech Republic
Slide No. 1. © 2011 ISATech ltd.. Atlas of the Mine Water Geothermal Potential in the Czech Republic
Content
Principles
Utilisation of the Mine Water Geothermal Potential
Evaluations of the Mine Water Geothermal Potential in Large Areas
Mining in the Czech Republic
Research of Using the Energy Potential of Mine Waters
Atlas of the Mine Water Geothermal Potential in the Czech Republic
Mine Water Potential in the Czech Republic
Acknowledgement
Slide No. 2. © 2011 ISATech ltd.. Atlas of the Mine Water Geothermal Potential in the Czech Republic
Principles
Minewater project (2008): Mine
water as a Renewable Energy
Resource :An information guide
based on the Minewater Project and
the experiences at pilot locations in
Midlothian and Heerlen.
Mines, both active and abandoned, might produce exceeding amounts of mine water. Like in any other low enthalpy
geothermal application temperature of the mine water is depth dependent and generally rather stable in time. Warm
mine water could be pumped from deeper horizons for heating while cold water from shallow parts of mines is helpful
for cooling during summer. Heat exchangers and pumps are being utilized for heat extraction mostly.
Slide No. 3. © 2011 ISATech ltd.. Atlas of the Mine Water Geothermal Potential in the Czech Republic
Mine Water has already been utilized as an energy source for heating (and cooling) worldwide. The best known are
probably the Springhill Geothermal Industrial Park in Springhill, Nova Scotia and the Mijnwater Project in Heerlen,
Nederland. Considerably smaller heating systems are in use in the Czech Republic as well. For example mine
water from the Jeremenko mine, Ostrava and Svornost mine, Jachymov provide heating for mining facilities.
Utilisation of the Mine Water
Geothermal Potential
example of facilities heated and cooled by mine water THE SVORNOST
MINE HEAT PUMP HEERLEN, NEDERLAND
www.mijn-water.nl www.town.springhill.ns.ca
SPRINGHILL, NOVA SCOTIA
Slide No. 4. © 2011 ISATech ltd.. Atlas of the Mine Water Geothermal Potential in the Czech Republic
Evaluations of the Mine Water Geothermal Potential in Large Areas
SHAWFAIR MINEWATER
PROJECT2 US COAL MINING REGION1 GEOTHERMAL POTENTIAL IN CANADIAN
ACTIVE AND ABANDONED MINES3
1 Ackman T. E. a Watzlaf G. (2007): U.S. Mining Regions –The Saudia Arabia of Geothermal Energy. 10thAnnual Electric Utilities Environmental Conference January 21 –24, The
Westin La Paloma Tucson, Arizona 2 Dickson J. (2004): SHAWFAIR MINEWATER PROJECT SCOTTISH NATIONAL MINEWATER POTENTIAL STUDY. Midlothian Council National Minewater Potential Study 3 Hassani F. P., Radziszewski P. H. , Baliga B. R., Ghoreishi A. (2009): GEOTHERMAL ENERGY POTENTIAL IN CANADIAN ACTIVE AND ABANDONED MINES. McGill
University, Montreal, Canada.
Reports and paper deal with local utilization of mine water mostly. Both hypothetical and concrete solutions are
being suggested for local conditions. Nevertheless energy conception making process demands large area
evaluation. Unfortunately qualitative and quantitative areal assessments are however rare so far. Following pictures
represent some of these evaluation.
Slide No. 5. © 2011 ISATech ltd.. Atlas of the Mine Water Geothermal Potential in the Czech Republic
Mining in the Czech Republic
www.geofond.cz
Long history of mining hand in hand with high demand for mineral resources during second half of the twentieth
century left more than 14 thousands registered mines in the Czech republic (see map of undermined areas bellow).
Undoubtedly number of the mines could provide enough mine water to support a heating-cooling system of various
scale. Some of the mines form systems or large field with enormous mine water capacity. These areas seem to be
promising even for large scale mine water geothermal heating system like in Springhill and Heerlen.
Slide No. 6. © 2011 ISATech ltd.. Atlas of the Mine Water Geothermal Potential in the Czech Republic
Research of Using
the Energy Potential of Mine Waters
The Czech Republic Ministry of Industry and Trade grant encouraged the use of abandoned mines as geothermal
energy sources. Project called „Research of Using the Energy Potential of Mine Waters“ (code 2A-2TP1/055)
studied various aspects of utilization of mine water as a low enthalpy geothermal source. The project research
team consisted of three private companies (Arcadis Geotechnika corp., ISATech ltd. and Progeo ltd.) and Czech
Academy of Science (Institute of Rock Structure and Mechanics).
Project outputs included
state of art reviews
mathematical modeling of flooded mine environment
overall evaluation of the mine water geothermal potential in the Czech Republic
SWOT analysis
localized mathematical models
feasibility studies for selected localities
localized mine water chemistry and remediation study
tailings remediation and reuse technical report
Slide No. 7. © 2011 ISATech ltd.. Atlas of the Mine Water Geothermal Potential in the Czech Republic
Atlas of the Mine Water Geothermal
Potential in the Czech Republic Overall evaluation of the mine water geothermal potential in the Czech Republic was compiled into an Atlas of the
Mine Water Geothermal Potential in the Czech Republic. Major mine water geothermal sites were targeted mostly.
Size of mine, mine water capacity and information availability were the key factors. Archives both national and
private, papers, review publications, maps, year books and wide range of technical reports focused on mine
operation and/or closure, mine hydrogeology and/or geochemistry, mine water remediation and contamination were
searched to attain data. Unsurprisingly the input data were highly inhomogeneous. Subject, accuracy and time of
observation were the main variables.
At the end attained data
allowed correct description
of 150 mines and mine
systems in 55 areas. Ore
(red), nonmetallic (blue)
and coal (black) mines
were differed because of
specific behavior of both
mine environment and
water.
Slide No. 8. © 2011 ISATech ltd.. Atlas of the Mine Water Geothermal Potential in the Czech Republic
Atlas of the Mine Water Geothermal
Potential in the Czech Republic (sequel 1)
Generally two approaches could be employed to characterize geothermal potential of water in a specific mine.
Static pool thermal potential considers total amount of water stored in the mine while dynamic describes
sustainable discharge. Relation between the potentials is not straight therefore logically the dynamic potential was
selected as a principal characteristics for the atlas. Due to unification of the atlas provided information several
generalisation had to be accepted. Open loop system was considered to neglect an influence of structure and
condition of a mine and a temperature drop in the aquifer. Also neither depth nor thermal stratification was not
studied in the mines. Unified 5K decrease based on actual low enthalpy heat pump best practice was adopted
instead. The dynamic pool thermal potential of mine water was calculated using following formula:
Qd = t.g.c.∆T where Qd stands for annual sum of dynamic pool thermal potential, q for sustainable discharge, t for time, T for
temperature drop and c for specific heat capacity of water. Mine water sources (mines and mine systems) were
categorized according to the annual sum of dynamic pool thermal potential (t = 1 year). Categories were set up due
to floor space theoretically possible heat by calculated thermal potential. Upper limit for A class of buildings (51 kW
per m2 and year) was applied.
Source category Colour in
the Atlas
Dynamic pool
thermal potential [m2]
Theoretical heated
floor space [MWh.year-1]
unimportant grey up to 6.12 up 120
not significant blue 6.12 – 51 120 – 1000
significant red 51 – 1275 1000 - 25000
highly significant yellow over 1275 over 25000
Slide No. 9. © 2011 ISATech ltd.. Atlas of the Mine Water Geothermal Potential in the Czech Republic
General part of the atlas introduces topic and sets up the research methodology. Site criterion apparatus, data and
map sources, calculations, categorization, accuracy and possible errors are defined. In a map part of the atlas
maps of different scale were used to provide both general and local information. Base maps were compiled from
various WMS sources using Quantum GIS. New layer describing annual sum of dynamic pool thermal potential of
selected mines, mine systems and areas was implemented. All 55 areas were described individually. Area
description includes general map of an area and/or detail maps in scale 1 : 50000. Area calculated annual sum of
dynamic pool thermal potential. Mining history, geology, hydrogeology and geochemistry of mine water is also
given.
Atlas of the Mine Water Geothermal
Potential in the Czech Republic (sequel 2)
GENERAL MAP OF AN AREA DETAIL 1 : 50000 MAP
Slide No. 10. © 2011 ISATech ltd.. Atlas of the Mine Water Geothermal Potential in the Czech Republic
In the Czech Republic 37 promising sites with highly significant mine water geothermal potential over 1275 MWh
per year were identified (see table bellow). Total annual geothermal potential of mine water in the Czech Republic
was calculated 502.5 MWh or 1.8 PJ. During an average heating season (242 days a year) mine water can provide
333.2 MWh or 1.2 PJ of heat. Theoretically 6.5 million square meters of floor space could be heated in the Czech
Republic. Thus mine water can provide additional 15% of heat comparing to low enthalpy geothermal potential
estimated in the Czech national energy conception published in 2010. Main obstacles are mine water chemistry
and in some cases also radioactivity. Tailings and clots might complicate both heat pump operation and efficiency.
Geothermal utilisation of mine water has to be plan and proceed hand in hand with remediation.
Mine Water Potential in the Czech Republic
highly significant sources Qd (MWh.year-1) highly significant sources Qd (MWh.year-1)
Abertamy mine system 7358 Moldava mine system 1527
Bližná mine system 1718 Nučice mine system 3054
Cínovec mine systém 2115 Ostrava-Karvina mining area 29424
Domoradice mine system 1563 Plzeň mining area 69537
Hamr mine 20721 Potůčky mine system 5427
Harrachov mine system 2495 Příbram mining area 4047
Horní Benešov mine system 3679 Rakovnik mine system 3284
Horní Slavkov mine system 3771 Rosice-Oslavany mining area 7174
Dubňany mine system 14177 Rožná mine system 8793
Jáchymov 21367 Rotava mine system 4746
Kyjov mine system 6070 North Bohemian Coal Area – the František mine 10762
Kladno mining area 47830 North Bohemian Coal Area – the Kohinoor mine 13540
Nové Strašecí mine systém 14618 East Bohemian Coal Area – the Radvanice mine system 7583
Kobeřice mine system 4599 East Bohemian Coal Area – the Rtyně and Ida mine system 18442
Krákořice mine system 1878 East Bohemian Coal Area – the Žacléř mine system 5833
Krupka mine system 5150 East Bohemian Coal Area – the Malé Svatoňovice mine system 14578
Medlov mining area 3054 Zlaté Hory mining area 18304
Měděnec mine system 7027 Zlatý Kopec mine 2300
Mirošov mine system 6255
Slide No. 11. © 2011 ISATech ltd.. Atlas of the Mine Water Geothermal Potential in the Czech Republic
This project was supported by Ministry of Trade and Industry of the Czech Republic (2A2TP1/055). We
are grateful to following companies and individuals for their invaluable help in data acquisition: Aquatest
corp., Petr Brůček, Miroslav Černík, DIAMO s.e., František Dudek, Jiří Fiedler, Geomedia ltd., Radek
Hanus, Pavel Koscielniak, Jan Kotris, Karel Lusk, PKÚ s.e., Jiří Pöpperl, Michal Stibitz, SUAS a.s.,
State Mining Authority, Marta Štamberová, T. G. Masaryk Water Research Institute, Timex Zdice ltd.,
Tomáš Váňa and Jiří Váša.
Acknowledgement
Slide No. 12. © 2011 ISATech ltd.. Atlas of the Mine Water Geothermal Potential in the Czech Republic
Thank you for your attention
if you are looking for additional information
please contact us at [email protected]
ISATech ltd.®
Industrial Safety Assessment Technicians