University of Ljubljana, Faculty of mechanical engineering
Virtual-prototype-based development of household refrigerator-freezer appliances
Primoz Poredos1, Andrej Ljubenko2, Andrej Kitanovski1, Alojz Poredos1.
1University of Ljubljana, Faculty of mechanical engineering, Ljubljana, Slovenia; 2Gorenje gospodinjski aparati, d.d., Velenje, Slovenia
The reduction of experimental time and costs can be performed by replacing a significant part of experiments with numerical simulations. This paper presents a case-based development of household refrigerator-freezing (RF) appliances by using virtual prototyping.
The virtual prototype is based on a combination of 0D and 1D numerical models for compressor, diabatic capillary tube, evaporator, condenser and compartment. Thermodynamic and thermophysical refrigerant properties were calculated using the REFPROP 9.1 and CoolProp libraries. The prototype was validated and calibrated by a series of experiments. The results were found to be within ±13% agreement.
During the development of RF appliances, the prototype was used for several parametric analyses that employed different types of compressors, condensers, evaporators and capillary tubes.
The results shows a positive impact on faster development times and cost reduction in future appliances. Besides, the virtual prototype offered a helpful insight on refrigeration cycle dependence on several factors.
10:40 - 12:00
|Refrigerating Equipment Dynamics and Controls (2)||Virtual-prototype-based development of household refrigerator-freezer appliances||524c|