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Coupled Hydro-Mechanical Analysis of Excavation Damaged Zones around an Underground Opening in Sedimentary Rock

H. Abdi[1], E. Evgin[1], M. Fall[1], T.S. Nguyen[2], and G. Su[2]
[1]University of Ottawa, Ottawa, ON, Canada
[2]Canadian Nuclear Safety Commission, Ottawa, ON, Canada

A large amount of research work has been carried out in many countries to determine the viability of radioactive waste disposal in deep geological ...

Diverse Models for Graphite Brick Deformation and Stress State in UK AGR Nuclear Reactors

J. Burrow [1], A. Bond [1],
[1] Quintessa Ltd, United Kingdom

The UK Advanced Gas-cooled Reactor fleet, operated by EDF Energy, utilize a graphite core consisting of a lattice of around 3000 annular bricks. Due to ...

Modeling Soil Water Dynamics with Time-Variable Soil Hydraulic Properties

A. Schwen[1], G. Bodner[2], A. Schnepf[3], D. Leitner[3], G. Kammerer[1], and W. Loiskandl[1]

[1]Institute of Hydraulics and Rural Water Management, Univ. Natural Resour. Appl. Life Sci., BOKU, Wien, Austria
[2]Institute of Agronomy and Plant Breeding, Univ. Natural Resour. Appl. Life Sci., BOKU, Wien, Austria
[3]Institute of Soil Science, Univ. Natural Resour. Appl. Life Sci., BOKU, Wien, Austria

Modeling soil water dynamics requires an accurate description of soil hydraulic properties, i.e. the retention and hydraulic conductivity functions. ...

A Coupled Analysis of Heat and Moisture Transfer in Soils

E. Evgin, J. Infante Sedano, and Z. Fu
University of Ottawa
Ottawa, ON
Canada

This paper is a part of a study on energy piles for heating and cooling of buildings. Energy piles are used for two reasons: (1) to transfer structural ...

Computation of the Longitudinal Dispersion Coefficient in an Adsorbing Porous Medium Using Homogenization

A. Rijnks[1], M. Darwish[2], and H. Bruining[3]
[1]StatoilHydro ASA, Bergen, Norway
[2]Shell Exploration & Production International Centre, Rijswijk,
The Netherlands
[3]Section of Geoengineering, Faculty of Civil Engineering and Geosciences, TU Delft, Delft, The Netherlands

The method to derive upscaled expressions for the dispersion coefficients for reactive flow in a porous medium uses a periodic unit cell (PUC), which ...

Building a Complex Geological Model Using Parametric Surfaces

S. Hoyer[1], M. Bottig[1], F. Zekiri[1], G. Götzl[1], A.K. Brüstle[1], G. Schubert[1], A. Nador[2]
[1]Geological survey of Austria, Vienna, Austria
[2]Geological Institute of Hungary, Budapest, Hungary

Temperature measurements of the subsurface are available due to hydrocarbon exploration in the project area, where the average drilling depth is about ...

Development of a COMSOL Application for the Efficient Evaluation of an Engineered Barrier System

D. Sampietro [1], E. Abarca [1], H. von Schenck [2], J. Molinero [1]
[1] Amphos 21 Consulting S.L., Barcelona, Spain
[2] Swedish Nuclear Fuel and Waste Management Co., Stockholm, Sweden

Radioactive waste repositories include barriers that work to contain the waste, thereby protecting human health and the environment. In deep geological ...

Underground Coal Fire Extinction Model Using Coupled Reactive Heat and Mass Transfer Model in Porous Media

S. Suhendra[1], M. Schmidt[1], and U. Krause[1]
[1]Laboratory II.2: “Flammable Bulk Materials and Dusts, Solid Fuels”, Federal Institute for Materials Research and Testing (BAM), Berlin, Germany

Green house gases emission associated with natural hazard of underground coal seam fire has been recognized as a worldwide problem leading to global ...

Finite-Element Evaluation of Thermal Response Tests Performed on U-Tube Borehole Heat Exchangers

E. Zanchini, and T. Terlizzese
[1]Dipartimento di Ingegneria Energetica, Nucleare e del Controllo Ambientale, Università di Bologna, Bologna, Italy

The results of two thermal response tests recently performed on two vertical borehole heat exchangers (BHEs) are presented. The BHEs have the same cross section and a depth of 100 m and 120 m respectively. The evaluation of the thermal properties of the ground and grout are performed by a finite-element simulation method, developed through the software package COMSOL Multiphysics 3.4.

Upscaling of Heterogeneous Rock Properties via a Multiscale Image to Simulation Approach

S. Zhang[1], M. Pal[2], P. Barthelemy[1], M. Lei[1]
[1]Visualization Sciences Group, Burlington, MA, USA
[2]Shell International Exploration and Production, Rijswijk, The Netherlands

The mass and recoverability of oil and gas in unconventional reservoirs strongly depend on the understanding the petrophysical properties of the rocks ...