Research Article

Effects of Heat Transfer Characteristics of R32 and R1234yf with Al2O3 Nanoparticle through U-Bend Tube Evaporator

Table 3

Grid refinement test.

NodeElementsHeat flux (kW/m2·K)

1777314683141.511 × 102
2588867256181.511 × 102
34953510191611.511 × 102