Comparison of Flow Boiling Characteristics Between Microgap and Microchannel
Two-phase microgap heat sink has a large potential to minimize the drawbacks associated with two-phase microchannel heat sink, especially flow instabilities, flow reversal and lateral variation of flow and wall temperature between channels. This new concept of the two-phase microgap heat sink is very promising due to its high heat transfer rate and ease of fabrication. However, comparison of the performance of the microgap heat sink (heat transfer and pressure drop characteristics) with some conventional heat sink has not been investigated extensively.
KeywordsMicrogap channel Microchannel Flow boiling Flow visualization Wall temperature uniformity Heat transfer Pressure drop