2017/02/27 by Lakshmi Sirisha Maganti, Purbarun Dhar, Maganti, Lakshmi Sirisha +7
Engineering · #FOS: Physical sciences #Fluid Dynamics (physics.flu-dyn) #Heat Transfer and Boiling Studies #Heat Transfer and Optimization #Instrumentation and Detectors (physics.ins-det) #Nanofluid Flow and Heat Transfer
paper · pdf · doi:10.48550/arxiv.1704.01456
openalex publication_date 2017/02/27 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
While parallel microchannel based cooling systems have been around for quite\na period of time, employing the same and incorporating them for near active\ncooling of microelectronic devices is yet to be implemented and the\nimplications of the same on thermal mitigation to be understood. The present\narticle focusses on a specific design of the PMCS such that it can be\nimplemented at ease on the heat spreader of a modern microprocessor to obtain\nnear active cooling. Extensive experimental and numerical studies have been\ncarried out to comprehend the same and three different flow configurations of\nPMCS have been adopted for the present investigations. Additional to focussing\non the thermofluidics due to flow configuration, nanofluids have also been\nemployed to achieve the desired essentials of mitigation of overshoot\ntemperatures and improving uniformity of cooling. Two modelling methods,\nDiscrete Phase Modelling and Effective Property Modelling have been employed\nfor numerical study to model nanofluids as working fluid in micro flow paths\nand the DPM predictions have been observed to match accurately with\nexperiments. To quantify the thermal performance of PMCS, an appropriate Figure\nof Merit has been proposed. From the FoM It has been perceived that the Z\nconfiguration employing nanofluid is the best suitable solutions for uniform\nthermal loads to achieve uniform cooling as well as reducing maximum\ntemperature produced with in the device. The present results are very promising\nand viable approach for futuristic thermal mitigation of microprocessor\nsystems.\n