A Numerical Analysis of the Enhanced Performance in Heat Transfer of a Manifold Micro-Channel Heat Sink

Manifold micro-channel heat sink (MMHS) has a better heat transfer capacity and uniformity compared with the conventional micro-channel heat sink (MHS), showing a great potential in cooling equipments with high heat generation rate like electronic chips.A numerical simulation work was carried out on heat transfer process in a single unit of MHS and MMHS.For the mass flow rate covering 0.57~2.87 kg/h, averaged heat transfer coefficient of the MMHS is enhanced over 100% and the heat dissipation uniformity is increased 52% compared with the MHS.The multiple inlets and outlets in the MMHS contribute a lot to the improvement of heat transfer performance.