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Analysis of the Dynamic Behavior of the Temperature Distribution Inside a Domestic Refrigerator

Authors:
Jesús Hernán Pérez Vázquez
Carlos Alexander Núñez Martín
Ottmar Rafael Uriza Gosebruch
Helen Janeth Zúñiga Osorio
Celso Eduardo Cruz González

Keywords: Heat exchange, thermal diffusivity, finite volume.

Abstract:
A mathematical model to describe the dynamics of heat extraction in a domestic refrigerator is exposed in this document. The concerned model is based on the Newton's Law for Cooling as a boundary condition (walls that isolate the volume of the box and keep the low energy level) for the Fourier Heat Equation, which is used to describe the energetic exchange among the mass nodes considered from the finite volumes concept. The model was codified through Matlab and used for simulation and validation with experimental results. The simulation results add information to validate that the temperature is not homogenous inside the appliance. The information provided helps to understand the evolution of temperature changes, assuming a homogeneous environment and different ratios of thermal capacity.

Pages: 63 to 66

Copyright: Copyright (c) IARIA, 2018

Publication date: April 22, 2018

Published in: conference

ISSN: 2308-4243

ISBN: 978-1-61208-626-2

Location: Athens, Greece

Dates: from April 22, 2018 to April 26, 2018