Análisis y simulación mediante Fluent de Ansys del proceso de condensación por convección forzada con ventiladores axiales en refrigeradores domésticos de hasta 500 litros de capacidad

Abstract

The purpose of this study is to show the development of the thermal design for the condenser in domestic refrigerators, which will lend itself to a forced and natural convection process, the analysis was carried out in two ways, numerical and simulated using the Ansys software, the The working fluid used was R600a refrigerant. In the methodology, a quantitative approach was given because it provides a series of sequential steps regarding the operation of the capacitor. An opening is given with the study of the edge conditions for the condenser, to later define the geometric design and evaluate its thermal behavior. The helical geometry is ideal for the operation of the condenser, in the simulation applying the appropriate mathematical models and using the correlation proposed by the software to define the fluid phase, thus obtaining highly reliable results. The analyzes obtained show that 14 is the appropriate number of turns for the condenser, in the forced convection process it was evidenced that in the phase change the refrigerant exits 95% in liquid state, while in a natural convection the change The phase of the refrigerant only reached 59%, it should be noted that the working pressure used was 579.7 kPa for both cases, an increase in the efficiency of the condenser is also evidenced, being greater than 50%