Journal ArticleDOI
Numerical study of two-dimensional freezing in an annulus
TLDR
In this article, a numerical study on two-dimensional freezing in an annulus made up of an initially superheated phase-change medium is presented, where numerical results are used to deduce a relation between the non-dimensional discharge time and the other parameters.Abstract:
An evaluation is made of the results of a numerical study on two-dimensional freezing in an annulus made up of an initially superheated phase-change medium. Numerical results are used to deduce a relation between the nondimensional discharge time and the other parameters. The velocity of the freeze front decreases with time because of the increase of interface area as the freezing proceeds radially outward, followed by a marginal decrease in the freezing rate due to the presence of the adiabatic surface; sensible cooling then occurs only where the freeze front has already reached the adiabatic surface. 6 refs.read more
Citations
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Numerical and experimental study on the solidification of PCM around a vertical axially finned isothermal cylinder
TL;DR: In this paper, the authors presented the results of a numerical and experimental investigation realized on finned tubes with the objective of using them in thermal storage systems, based upon the pure conduction mechanism of heat transfer, the enthalpy formulation approach and the control volume method.
Journal ArticleDOI
Experimentally validated two dimensional numerical model for the solidification of PCM along a horizontal long tube
Kamal A.R. Ismail,Fatima A. M. Lino,Raquel da Cunha Ribeiro da Silva,Antonio Batista de Jesus,Louryval C. Paixão +4 more
TL;DR: In this article, the authors presented the results of a numerical study validated by experimental measurements on the solidification of PCM along a horizontal tube by using the boundary immobilization technique.
Journal ArticleDOI
An experimental study on ice formation around horizontal long tubes
TL;DR: In this article, the growth rate of ice on the outside of cooled copper tubes was studied and it was found that axial growth rate is distinct at low values of the coolant Reynolds number and short freezing times.
Journal ArticleDOI
Parametric study of solidification of PCM around a cylinder for ice-bank applications
TL;DR: In this article, the authors present the results of a numerical parametric study of the solidification of a phase change material (PCM) around a cylinder carrying a heat transfer fluid (HTF) inside.
Journal ArticleDOI
Ice formation around isothermal radial finned tubes
TL;DR: In this article, a thermal numerical model for the solidification of phase change material around a radially finned tube with a constant wall temperature is presented, based upon a pure conduction formulation and the enthalpy method.
References
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Journal ArticleDOI
Combined Parameter and Function Estimation in Heat Transfer With Application to Contact Conductance
Journal ArticleDOI
An experimental study of heat transfer through periodically contacting surfaces
TL;DR: In this paper, it was shown that, despite large variations in thermal contact resistance from one meeting of the contact surfaces to the next, earlier theoretical work could be used to predict, with reasonable accuracy, the average thermal resistance arising from periodic interruption of the heat flow at the contact interface.
Journal ArticleDOI
Experimental study of the transient heat transfer across periodically contacting surfaces
W. M. Moses,R. R. Johnson +1 more
TL;DR: In this article, the authors examined the thermal contact resistance of surfaces which contact and separate at regular intervals and showed that thermal contact resistances should not be considered a constant for contacts of short duration, and relatively few cycles are required for the temperature distribution in the material to approach that observed in the quasi-steady state.
Journal ArticleDOI
Quasi-Steady-State Temperature Distribution in Periodically Contacting Finite Regions
B. Vick,M.N. Özişik +1 more
Journal ArticleDOI
An analogue study of heat transfer through periodically contacting surfaces
J.R. Howard,A.E Sutton +1 more
TL;DR: In this paper, an analogue computer was used to determine the effect of frequency and duration of contact per cycle on heat transfer through surfaces which are meeting and separating according to a regular cycle.
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