Modeling for predicting frosting behavior of a fin–tube heat exchanger

Heat transfer and pressure drop amidst frost layer presence for the full geometry of fin-tube heat exchanger

“…4), the same geometry used in the experiment by Lee and Park [5] and Yang et al [6]. Table 2 shows the comparison between the present computational result for the air outlet temperature as a function of the frost layer thickness with the experimental data given by Lee and Park [5] and Yang et al [6] for different thermal conductivities of frost layer ( frost k ) of frost k = 0.02, 0.07, and 0.13 W/m·K. When frost k = 0.07 W/m·K, the computational results for the air outlet temperature of the present study well represents the experimental data given by Lee and Park [5] and Yang et al [6].…”

“…Many researchers [2][3][4][5][6][7][8][9][10][11][12][13][14] have developed theoretical models based on heat and mass transfer between the air flow and frost layer, and have carried out experimental studies to investigate the performance of various heat exchangers under frosting conditions. Some researchers [15][16][17] conducted CFD analysis for the simplified geometry of fin-tube heat exchangers with and without frost conditions to investigate in detail fluid flow and heat transfer characteristics of fin-tube heat exchangers.…”

“…Geometry of fin-tube heat exchanger used in the experiment by Lee and Park[5] and Yang et al[6]: (a) Left view, (b) Front view.…”

Numerical Modeling and Experimentation on Evaporator Coils for Refrigeration in Dry and Frosting Operational Conditions

“…The authors used a correlation for airside heat transfer, based on their own heat exchanger data which cannot be extrapolated to other coil conditions. (Yang et al, 2006a(Yang et al, , 2006b) optimized fin spacing of a frost fin-and-tube evaporator to increase coil performance and operational time between defrost cycles. In common to most of the theoretical and modeling work reported herein, validations generally relied on the data available in the open literature or on private collaborative exchanges.…”

Modeling the airside dynamic behavior of a heat exchanger under frosting conditions

“…Recent studies [7][8][9][10][11][12][13][14] on the performance of heat exchanger under frosting conditions has elucidated the effects of ambient and geometry parameters on the performance of the heat exchangers. This shows that the reported study did not consider the variation of the refrigerant temperature and the airflow condition during the frosting process.…”