Numerical Modeling As A Basic Tool For
Evaluation Of Using Mine Water As A Heat Source
Author(s)
J. Baier, M. Polák, M. Šindelář & J. Uhlík
Abstract
In 2007 research on the possibilities of using mine water as a heat source started.
Major research goals were: a) model evaluation of the heat transfer in the rock
containing selected mines; b) model prediction of the temperature change due to
the heat pump operation.
A database containing data from abandoned mines covering the Czech
Republic area was created. It contains mine water volumes, chemical parameters
and temperatures.
Two types of simulation software were used. For the Plzeňská basin region
the heat transfer and groundwater flow were calculated using MODFLOW and
MT3DMS simulation software. Their numerical code is based on the finite
difference method (FDM). For the Příbram region the FEFLOW code was used.
FEFLOW numerical code is based on the finite element method (FEM).
Model results show that the mining water temperature decrease due to the
groundwater abstraction for the heat pump will be relatively small. Temperature
decrease originates from the fact that colder shallow groundwater will inflow
into mine spaces mixing with the warmer mine water. The time scale of the mine
water temperature decrease is over several centuries. The temperature conditions
of the mine water could be very stable. Abandoned mines are supposed to be a
suitable geothermal energy source.
Keywords: numerical modeling, FEFLOW, MODFLOW, MT3DMS, abandoned
mine, mine water, heat pump, geothermal energy.
Keywords
numerical modeling, FEFLOW, MODFLOW, MT3DMS, abandoned
mine, mine water, heat pump, geothermal energy
Related Book
Other papers in this volume
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