Thermal Analysis of Wire on Tube Condenser by Exergy and Penalty Factor Methods

The thermal analysis study for condensation in wire on tube condenser depend on experimental data is done for vapor compression refrigeration system (refrigerator). The aim of this study is the comparing of the entropy generation during the condensation apply the exergy and the penalty factor analysis methods. Two methods consider the losses due to the heat transfer and the friction for the flow to find the total reduction in wire on tube condenser capacity and. The test done for R-134a and R-600a under the same cooling capacity required and same operation conditions. The results show the exergy method is more accurate than penalty factor due to the using of the second low efficiency in the analysis that is lead to select the lower power consumption refrigerant to operating the system.