Comparison of Flow Boiling Characteristics Between Microgap and Microchannel

  • Tamanna Alam
  • Poh Seng Lee
  • Li-Wen Jin
Part of the SpringerBriefs in Applied Sciences and Technology book series (BRIEFSAPPLSCIENCES)


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.


Microgap channel Microchannel Flow boiling Flow visualization Wall temperature uniformity Heat transfer Pressure drop 


  1. 1.
    Harirchian T, Garimella SV (2008) Microchannel size effects on local flow boiling heat transfer to a dielectric fluid. Int J Heat Mass Transf 51:3724–3735CrossRefzbMATHGoogle Scholar
  2. 2.
    Qu W, Mudawar I (2004) Transport phenomena in two-phase micro-channel heat sinks. J Electron Packag 126:213–224CrossRefGoogle Scholar
  3. 3.
    Lee PS, Garimella SV (2008) Saturated flow boiling heat transfer and pressure drop in silicon microchannel arrays. Int J Heat Mass Transf 51:789–806CrossRefzbMATHGoogle Scholar
  4. 4.
    Garimella SV, Sobhan CB (2003) Transport in microchannels—a critical review. Ann Rev Heat Transf 13:1–50CrossRefGoogle Scholar

Copyright information

© The Author(s) 2014

Authors and Affiliations

  1. 1.Department of Mechanical EngineeringNational University of SingaporeSingaporeSingapore
  2. 2.Department of Building Environment and Energy ApplicationsXi’an Jiaotong UniversityXi’anPeople’s Republic of China

Personalised recommendations