Heat and mass transfer with phase change in aporous structure partially heated: continuum model andpore network simulations

Exact solutions for drying with coupled phase-change in a porous medium with a heat flux condition on the surface

“…Heat and mass transfer during drying from an homogeneous point of view are also considered in [1], [2], [4], [8], [11], [18], and [19].…”

Investigation on Heat and Mass Transfer in a Evaporator of a Capillary-Pumped Loop with the Lattice Boltzmann Method: Pore Scale Simulation

“…Unlike Cao and Faghri (1994a,b), Demidov and Yatsenko (1994) presented a numerical study showing that vapor zones can take place within the porous wick in the evaporator under the fins. A similar problem has also been studied by Figus et al (1999). They presented a numerical solution for heat and mass transfer in the cylindrical evaporator wick by using the Darcy model and by using a two-dimensional pore network model.…”

“…The computational domain mentioned above is mostly not a complete evaporator, and it leads to some shortages in evaluating the overall evaporator performance by these models. Secondly, the previous works in literatures mainly stayed at the simulation or experiments of steady heat transfer in the porous wick (Khrustalev and Faghri 1995;Zhao and Liao 2000;Demidov and Yatsenko 1994;Figus et al 1999), which cannot simulate the development of flow and energy field in the evaporator from startup to a steady working state or the response of flow and energy field on the change of the working conditions, such as the suddenly change of the heat load. Thirdly, the previous literatures are mainly proposed based on the continuous governing equations (Navier-Stokes equation) at the representative elementary volume (REV) scale.…”

“…Thirdly, the previous literatures are mainly proposed based on the continuous governing equations (Navier-Stokes equation) at the representative elementary volume (REV) scale. Thus, these models need two basic assumptions (Wan et al 2009;Figus et al 1999;Khrustalev and Faghri 1995): (1) continuous assumption, (2) thermodynamic equilibrium between solid phase and liquid phase. Actually, there are temperature differences between solid and liquid phase in the porous wick.…”

Boiling Stability in a Porous Medium Heated From Below

“…The interest for this topic is due to various applications in fields of engineering and sciences including drying processes [e.g., high temperature drum drying Rudemiller and Lindsay (1989), vacuum drying Laurent et al (1999); Moyne (1987) or microwave drying Turner and Jolly (1992); Péré and Rodier (2002)], heat pipe and capillary pump loops Faghri (1995); Figus et al (1999), reflooding of debris beds in a damaged nuclear reactor Lipinski (1984); Chawla et al (1985); Stubos and Buchlin (1993), underground high-level radioactive waste repositories Doughty and Pruess (1988); Forsyth (1990), thermally enhanced oil recovery Yortsos and Gavalas (1982), or soil remediation by steam injection Udell (1997), safety evaluation during fire in buildings or tunnels Sahota and Pagni (1979); Schrefler et al (2002), etc. Many other examples can be found from geophysics like hydro-thermal behavior near active volcanoes Hurst et al (1991); Vandemeulebrouck et al (2005), description of geothermal system O' Sullivan et al (2001) or understanding of geyser phenomena Ingebritsen and Rojstaczer (1996).…”