Experimental and Numerical Study on Performance Enhancement by Modifying the Flow Channel in the Mechanical Chamber Room of a Home Refrigerator

Abstract

Recently, many refrigerators of high have been designed so as to improve the performance of the refrigerator and to economize on energy. There are many methods of improving the total efficiency of the refrigerators using a methodological approach. In this experimental and numerical study, three methods—namely, modifying the flow channel and the operating conditions and changing the positions of the fan at the mechanical chamber room (MCR)—are used to analyze the performance improvement of the refrigerator. These methods of changing the flow channel in an MCR of a refrigerator are, in many ways, used as a regulation of the upper flow region of the condenser, especially in this research. Modifying the refrigerators’ MCR is carried out by changing the shape of the cover back machine (CBM). We compute the fluid flow in a refrigerator MCR by computational fluid dynamics (CFD) techniques. The commercial code ANSYS CFX 16.2 is used for this computation. The regulation flow region shows a reduction in power consumption of about 0.75% per month. The result of the operating conditions of the fan at MCR is relative to the flow rate for reducing power consumption. The changing positions are also relative to the length of the reducing power consumption. Moreover, with the results obtained by CFD, we understand the flow structure in a refrigerators’ MCR for various types of CBM. The results also show that the efficiency of the refrigerator is improved by 1.2%.

Experimental and Numerical Modeling of Fluid Flow

“…The in vitro measurements of oscillatory respiratory flow velocity show the temporal evolution of the complex flow patterns and the potential wall collapse of the extra-thoracic airway model with obstructive sleep apneahypopnea syndrome. D. K. Kim [6] analyzes the performance improvement of refrigerators by different innovative methods. The effects of three methods, modifying the flow channel and the operating conditions and changing the positions of the fan in the mechanical chamber room, are analyzed in a combined experimental and numerical approach.…”