Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 10 of 10 for “"Microchannel heat sink"”.
-
Experimental Investigation of the Effect of Copper Nanowires On Heat Transfer and Pressure Drop For A Single Phase Microchannel Heat Sink
<p>This thesis experimentally investigates the heat transfer and pressure drop characteristics of a shallow rectangular single phase microchannel heat sink with hydraulic diameter of 0.672 mm and whose bottom wall is coated with Cu nanowires (CuNWs) of 200 nm in diameter and 0.050 mm in length. …
-
Numerical optimisation and theoretical analysis of complex microchannel heat exchangers
… of the geometries in forced convective heat transfer and steady state laminar incompressible fluid flow. Microchannel heat sinks used were numerically modelled from highly conductive (aluminium) solid material substrate. ANSYS FLUENT Response Surface Optimisation Tool (RSO) was used to …
-
Geometric and numerical optimisation of single- and two-phase convective heat transfer in microchannel heat sinks
… are required for the present and future high heat flux applications because natural and forced air convection and many other cooling methods employing liquid coolants cannot meet up with the challenges. More transistors are added to the surfaces of electronic chips to increase the capacity of …
-
Non-intrusive two-phase flow regime identification and transport characterization in microchannels subject to uniform and non-uniform heat input
<p>Direct integration of compact microchannel heat sinks is an attractive thermal management solution for the dissipation of high heat fluxes, specifically under boiling conditions that provide high rates of heat transfer at a uniform heat sink temperature. Under two-phase flow conditions, the heat …
-
Forced Convection in Microchannels with Nanostructures on One Wall
… and as a result, need to dissipate higher heat fluxes. Active cooling is the only possible method of thermal management for these devices. A new type of microchannel heat sink has been developed and evaluated in this study. The device consists of silicon microchannels on whose bottom …
-
High-density thermoelectric power generation and nanoscale thermal metrology
… are found for handling the large resulting heat fluxes. We optimize the performance of a thermoelectric generator in this regime, and discuss fundamental performance limits in this context. We present a design of a thermoelectric generator using conventional material and a microchannel heat …
-
Thermal management of discretized heaters using CuW microchannel heat sinks and FC3283 for laser diode applications
Single-phase cooling using microchannel heat sinks (MCHS) has become a popular approach for overcoming the thermal challenges associated with high-powered microelectronic devices. Thermal management is one of the largest barriers to higher power densities in electronics and frequently limits …
-
Micro and nanostructures for two-phase fluid and thermal transport
… of the role of surface structures in two-phase heat sinks including capillary driven evaporators and flow boiling in microchannels. First, we developed a detailed finite volume numerical model for thin-film evaporation from micropillar array wick structures. The model can predict the dry-out …
-
Characterization of pool boiling heat transfer from porous-coating-enhanced surfaces
… applications, due to its passive nature and high heat transfer coefficients obtained. Pool boiling heat transfer has been extensively studied in recent decades to understand the inherent mechanisms yielding the high heat transfer rates, as well as to further enhance the heat transfer by simple …
-
Experimental and Numerical Analysis of Enhanced Micro-Channel Cooling Using Micro-Synthetic Jets
… This cooling scheme combines the micro-channel heat sink with micro-synthetic jets. The basic idea is to utilize the flow control aspects of synthetic jets to modify the flow field in micro-channels for better heat transfer performance.</p> <p>Hydrodynamic and thermal characteristics of both …