Abstract
This work provides an analysis of the thermal flow and behavior of the (load-free) refrigerator compartment. The main goal was to compare the thermal behavior inside the refrigerator cavity to the freezer door (home refrigerator) effect and install a fan on the freezer door while neglecting the heat transmitted by thermal radiation. Moreover, the velocity distribution, temperature, and velocity path lines are theoretically studied. This was observed without affecting the shelves inside the cabinet and the egg and butter places on the refrigerator door as they were removed and the aluminum door replaced with a glass door. This study aims to expand our knowledge about the temperature and flow fields of this refrigerator model. Finally, the development of this work highlights the importance of numerical simulation in the search for improvements in the design of this refrigerator model, which may assist refrigerator manufacturers.
Highlights
Home refrigerators are available and widely used globally, with nearly one billion fridges located worldwide(Laguerre and Flick, 2004)
Static (Fig. 1a), the heat is transferred by the mechanism of natural convection that occurs due to air movement
Since the air near the cold wall is directed downward, and the air near the hot wall is directed upward (Laguerre, Ben Amara, and Flick, 2005), the temperature is higher at the bottom of the refrigerator model, and the lower air temperature has been observed in the absence of foods (Laguerre et al, 2008) and (Gupta, Ram Gopal, and Chakraborty, 2007)
Summary
Home refrigerators are available and widely used globally, with nearly one billion fridges located worldwide(Laguerre and Flick, 2004). Static (Fig. 1a), the heat is transferred by the mechanism of natural convection that occurs due to air movement. No-Frost type (Fig. 1c) contains a fan located inside the back wall of the refrigerator, which forces air to flow over the evaporator before entering the cold room (Fig. 2) (Laguerre, 2010). Since the air near the cold wall is directed downward, and the air near the hot wall is directed upward (Laguerre, Ben Amara, and Flick, 2005), the temperature is higher at the bottom of the refrigerator model, and the lower air temperature has been observed in the absence of foods (Laguerre et al, 2008) and (Gupta, Ram Gopal, and Chakraborty, 2007). The aim was to better understand the heat transfer mechanism by natural convection and with a fan in the refrigerator and use this data to validate the modeling
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