A comparative analysis of innovative microchannel heat sinks for electronic cooling. (August 2016)

• Record Type: Journal Article
• Authors: Lu, Sainan; Vafai, Kambiz
• Is Part Of: International communications in heat and mass transfer. Volume 76(2016:Aug.)
• Page Start: 271
• Page End: 284
• Publication Date: 2016-08
• Subjects: Double-layer microchannel -- Multi-layer microchannel -- Thermal resistance -- Pumping power; Heat -- Transmission -- Periodicals; Mass transfer -- Periodicals; Chaleur -- Transmission -- Périodiques; Transfert de masse -- Périodiques; Heat -- Transmission; Mass transfer; Periodicals; 621.4022
• DOI: 10.1016/j.icheatmasstransfer.2016.04.024
• Languages: English
• ISSNs: 0735-1933

Abstract

Abstract: In this work, a comparative analysis of innovative microchannel heat sinks such as two-layered and multi-layered microchannel heat sinks (MCHS), or thin films within flexible complex seals and cooling augmentation using microchannels with rotatable separating plates, is presented. A compilation of the numbers of layers, main characteristics, setups, advantages and disadvantages, thermal resistance, pumping power in double-layer (DL-MCHS) and multi-layer MCHS (ML-MCHS) is presented. In addition, the thermal resistance is analyzed in order to present a comparison between the single-layer MCHS (SL-MCHS) and multi-layer microchannels. The results of comparison indicates that double-layer and multi-layer MCHS have lower thermal resistance and require smaller pumping power and they resolve the high streamwise temperature rise problem of SL-MCHS.