Searched for: author%3A%22Al-Khoury%2C+Rafid%22
(1 - 15 of 15)
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Al-Khoury, Rafid (author), BniLam, Noori (author), Musivand Arzanfudi, M. (author), Saeid, S. (author)
This paper introduces an analytical model analyzing the effect of groundwater flow on heat transfer in an infinite conductive-convective porous domain representing shallow geothermal systems with arbitrarily configured cylindrical heat sources. The model is formulated based on the moving source concept and solved based on the spectral...
journal article 2021
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Bni Lam, N.H.N. (author), Al-Khoury, Rafid (author)
This paper presents a new parameter identification (PI) algorithm for estimating effective and detailed thermal parameters of ground source heat pump systems using data obtained from the well-known thermal response test. The PI comprises an iterative scheme coupling a semi-analytical forward model to an inverse model. The forward model is...
journal article 2020
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Al-Khoury, Rafid (author), Bni Lam, N.H.N. (author), Musivand Arzanfudi, M. (author), Saeid, S. (author)
This paper introduces a spectral model for a moving cylindrical heat source in an infinite conductive-convective domain. This physical process occurs in many engineering and technological applications including heat conduction-convection in ground source heat pump systems, where the borehole heat exchangers likely go through layers with...
journal article 2020
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Bni Lam, N.H.N. (author), Al-Khoury, Rafid (author)
This paper presents a semi-analytical model based on the spectral element method for three-dimensional, short-to-long term heat flow in multiple borehole, multilayer ground source heat pump systems. The model is distinguished by its computational technique for expressing the input signal at the boundary of the borehole heat exchanger, giving...
journal article 2020
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Musivand Arzanfudi, M. (author), Al-Khoury, Rafid (author), Sluys, Lambertus J. (author), Schreppers, G.M.A (author)
This paper introduces a thermo-hydro-mechanical finite element model for energy piles subjected to cyclic thermal loading. We address four particular features pertaining to the physics of energy piles: three-dimensionality, embedded heat exchangers, soil constitutive modeling and pile–soil interface. The model is designed to capture the...
journal article 2020
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Musivand Arzanfudi, M. (author), Al-Khoury, Rafid (author)
abstract 2019
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Al-Khoury, Rafid (author), Musivand Arzanfudi, M. (author)
abstract 2019
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Musivand Arzanfudi, M. (author), Al-Khoury, Rafid (author)
This paper introduces a thermo-hydro-mechanical computational model for freezing and thawing in porous media domains, with focus on freezing and thawing in soil. The model is formulated based on the averaging theory and discretized using a mixed discretization scheme, where the standard and extended finite element methods are simultaneously...
journal article 2018
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Musivand Arzanfudi, M. (author), Saeid, Sanaz (author), Al-Khoury, Rafid (author), Sluys, Lambertus J. (author)
This paper introduces a multidomain-staggered technique for coupling multiphase flow in a porous medium, dominated by the Darcy laminar flow, with multiphase flow in a wellbore, dominated by the Navier Stokes viscous, compressible flow. The Darcy flow in the porous medium is formulated using the averaging theory, and the Navier Stokes flow in...
journal article 2016
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Akbar, S. (author), Fathianpour, N. (author), Al-Khoury, Rafid (author)
This paper introduces a computational model for transient high enthalpy fluid flow through geothermal wellbores. The drift-flux model is utilized to formulate the physical behavior of fluid, and the constitutive relationships are described using relevant equations of state and empirical relationships. The governing equations are solved using...
journal article 2016
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Bni Lam, N.H.N. (author), Al-Khoury, Rafid (author)
This paper introduces a semi-analytical model for the simulation of transient heat transfer with friction heat gain in a single U-tube geothermal borehole heat exchanger subjected to an arbitrary heat flux signal. The friction effect appears as a nonhomogeneous term in the governing equations, which constitutes a set of coupled partial...
journal article 2016
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Al-Khoury, Rafid (author), Focaccia, S. (author)
This paper introduces a semi-analytical model based on the spectral analysis method for the simulation of transient conductive-convective heat flow in an axisymmetric shallow geothermal system consisting of a double U-tube borehole heat exchanger embedded in a soil mass. The proposed model combines the exactness of the analytical methods with...
journal article 2016
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Al-Khoury, Rafid (author), Musivand Arzanfudi, M. (author)
A computational model for multiple CO2 leakage mechanisms is introduced. Leakage through cap layers and abandoned wellbores are considered. For the first, leakage in a rigid heterogeneous layered medium constituting layers of different physical properties is simulated. Such a leakage exhibits a<br/>discontinuity in the saturation field at the...
abstract 2015
document
Musivand Arzanfudi, M. (author), Al-Khoury, Rafid (author)
journal article 2015
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Musivand Arzanfudi, M. (author), Al-Khoury, Rafid (author), Sluys, Lambertus J. (author)
journal article 2014
Searched for: author%3A%22Al-Khoury%2C+Rafid%22
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