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International journal of refrigeration = Revbue internationale du froid v.74, 2017년, pp.362 - 370   SCI SCIE
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Application mathEmatique pour analyser le comportement thermique d'un rEfrigErateur domestique: Influence de l'emplacement des EtagEres
Mathematical application to analyze the thermal behavior of a domestic refrigerator: Influence of the location of the shelves

Ledesma, Sergio (Corresponding author. School of Engineering Campus Irapuato-Salamanca, University of Guanajuato. Carretera Salamanca-Valle de Santiago, km 3.5+1.8 Comunidad de Palo Blanco, Salamanca 36885 Mexico. Fax: +52 (464) 6479940 ext. 2311. ); Belman-Flores, J.M. ( );
  • 초록  

    Abstract This paper presents a mathematical application in the thermal analysis of a domestic refrigerator. The main idea of this work is to observe and analyze the thermal effect in the fresh food compartment when the glass shelves are changed of location. Thus, the use of the moving variance is proposed to analyze the thermal distribution of the refrigerator compartments and the use of finite differences to examine the temperature change rate by computing the temperature derivative with respect to time. Additionally, the use of 2D interpolation methods is proposed to build thermal maps in order to analyze the mean and variance of the temperature when the locations of the shelves change. These maps are a very important tool to find a good combination of the shelves locations to attain a proper temperature for the best conservation of perishable food. Highlights Mathematical methods are used to analyze the thermal behavior of the compartments. Thermal maps were used to find the most appropriate shelves location. The moving variance in freezer is 43 times higher than in fresh food compartment. Temperature derivatives allowed the precise detection of stability. Temperature derivative is 6 times higher in freezer than in fresh food compartment.


  • 주제어

    Domestic refrigerator .   Thermal analysis .   Shelf location .   Moving variance .   2D bilinear interpolation .   Réfrigérateur domestique .   Analyse thermique .   Emplacement d'étagère .   Variance mobile .   Interpolation bilinéaire à 2D.  

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