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This paper discusses the construction of a dynamic energy balance equation using boundary conditions conventionally defined for a thermodynamic system. With routine modifications, the equation can be applied to a wide variety of engineering systems. The eq ...
Low-tension circuit breakers generally rely on the extinction of the electric arc created when the current-carrying contacts separate. The dynamics of the arc has been studied for a number of years using numerical simulations of the coupled fluid dynamics/ ...
The substitution of CFC refrigerants in refrigeration systems, heat pumps and organic Rankine cycles, requests a good knowledge of the heat transfer and pressure drop properties of substitute fluids. A contribution to this international effort is proposed ...
A replication process for producing fine open-celled ceramic foam from preceramic polymers is presented and analysed. In this process, a porous sodium chloride compact formed by sintering was first infiltrated with polycarbosilane. After dissolution of the ...
A comprehensive micro-macroscopic model of the continuous hardening of 3d-axisymmetric steel components by induction heating has been developed. At the macroscopic scale, the Maxwell and heat flow equations are solved using a mixed numerical formulation : ...
This paper discusses the construction of a dynamic energy balance equation using boundary conditions conventionally defined for a thermodynamic system. With routine modifications, the equation can be applied to a wide variety of engineering systems. The eq ...
La cogénération se définit comme un système très efficace qui produit simultanément de l’électricité (ou de la puissance mécanique) et de la chaleur à partir d’un seul combustible (“combined heat and power”, CHP en anglais). En d’autres termes, l’utilisate ...
In an earlier contribution it was shown that the Continuous-Properties Model (CPM) is an ideal theoretical model to calculate melting of ice slurries. Now with a shock-theoretical approach, it is proven that the CPM - in the limit toward a discontinuous me ...
International Institute of Refrigeration IIR-IIF2001
In the first part of this work a comprehensive model of the continuous hardening of 3D-axisymmetric steel components by induction heating has been developed. In the model, the Maxwell and heat flow equations are solved using a mixed numerical formulation : ...
Inverse methods can be used in solidification and related processes for the estimation of boundary conditions or physical properties of materials. For heat flow problems, these methods are based upon a minimisation of the errors between calculated and meas ...
