Heat flux variation between neighboring channels in compact minichannel heat exchangers

Numerical results show that heat flux flow downstream from the leading edge was dependent on geometrical parameters (size and number of channels, dimensions of fins) and the properties of air flow (incoming flow velocity, temperature and air flow morphology within the louvered fins domain). The overall heat flux difference between the leading channel and the trailing one was 73% at air velocity of 5 m/s, while this difference was almost 96% at 1 m/s for plate B. Multiport plate A had a heat flux difference between the first and the last channel of 68.7% and 93.8% at 5 m/s and 1 m/s respectively. The magnitude of heat flux at ΔT = 10 K (T = 20 °C) was two times smaller compared to the case of ΔT = 20 K (T = 30 °C).