Browsing Department of Mechanical and Aerospace Engineering by Title
Now showing items 384-403 of 916
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Experimental and analytical study of a self-regulated Flow Control Device developed for dynamic cold-plates to cool high-power density multi-chip modules
(2019-11-21)Modern high-power density modules often demand high amounts of power be invested in their cooling processes. Uneven heating at the chip level creates hotspots and temperature gradients across the module. A very effective ... -
EXPERIMENTAL AND COMPUTATIONAL BOARD LEVEL RELIABILITY ASSESSMENT OF THICK BOARD QFN ASSEMBLIES UNDER POWER CYCLING
(2016-05-11)Quad Flat No-Lead Package (QFN) is one of the latest cutting edge technologies that took the industry by storm due to its excellent electrical and thermal performance, compact size and low cost. Due to its compact size, ... -
EXPERIMENTAL AND COMPUTATIONAL INVESTIGATION OF THE NEED FOR AN ACCLIMATION FOR OPERATING IT EQUIPMENT
(2017-05-22)Acclimation of IT equipment is not only for newly commissioned equipment but are also for the equipment that is already in use. In conventional Data Center, IT Equipment are cooled by traditional cooling methods, but due ... -
Experimental And Computational Study Of An IT Pod And Its Cooling System
(Mechanical Engineering, 2014-12)Conventional data centers are extremely large buildings that have complex power distribution and cooling systems. These data centers employ relatively expensive cooling systems which are inefficient. These inefficiencies ... -
EXPERIMENTAL AND COMPUTATIONAL STUDY OF MULTI-LEVEL COOLING SYSTEMS AT ELEVATED COOLANT TEMPERATURES IN DATA CENTERS
(2017-07-20)Data centers house a variety of compute, storage, network IT hardware where equipment reliability is of utmost importance. Heat generated by the IT equipment can substantially reduce its service life if T_(J,Max), maximum ... -
EXPERIMENTAL AND COMPUTATIONAL STUDY OF THE ACCLIMATION OF NEW IT EQUIPMENT
(2017-05-22)Acclimation of newly commissioned IT equipment is an important step that is necessary for safe operations. Proper acclimation is required to prevent an unnecessary condensation from forming and causing premature failure ... -
Experimental And Computatonal Analysis Of The Effect Of PCB Layer Copper Thickness And Prepreg Layer Stiffness On Solder Joint Reliability
The emphasis of this study is to find out how the solder joints of the BGA package are affected with change in the stack up PCB layer copper thickness and the prepeg layer stiffness. In general the effect of the PCB layer ... -
EXPERIMENTAL AND NUMERICAL INVESTIGATION OF HEAT TRANSFER IN BATTERY PACK OF A HOVERBOARD
(2018-05-14)Li-ion cells are used for energy storage and conversion in electric vehicles and a variety of consumer devices such as hoverboards. Performance and safety of such devices is severely affected by overheating of Li-ion cells ... -
Experimental And Numerical Investigation Of Mass Transfer In Microreactors
(Mechanical Engineering, 2012-07-25)In this work, two types of microreactors for reactions have been studied, which were involving multiple fluid phases: liquid-liquid (immiscible liquids) phase and gas-liquid phase. Investigation of mass transfer within ... -
Experimental And Numerical Investigation Of Transesterification Of Vegetable Oil With A Continuous Flow Capillary Reactor
(Mechanical Engineering, 2011-10-11)Biodiesel, Fatty Acid Methyl Ester (FAME), is a renewable fuel that is a promising alternative to fossil fuels in the future. Biodiesel not only has similar properties to diesel derived from fossil fuel, but it also provides ... -
Experimental and Numerical study of heat transfer phenomenon in a Micro droplet reactor
(2016-12-09)Temperature is an important control parameter during chemical reaction process. Micro reactors have attracted much attention due to its capability of excellent heat and mass transfer, fast reaction, and inherent safety of ... -
EXPERIMENTAL AND NUMERICAL STUDY OF MARANGONI CONVECTION IN A SANDWICHED DROPLET
(2016-05-10)This research studies velocity fields resulted from the marangoni effect in a microscale droplet sandwiched in parallel plates. Surface tension becomes the dominant driving force as opposed to body forces as we move from ... -
Experimental and numerical study of open bath immersion cooling of microprocessors.
(2020-08-14)The increase on demand of communication and networking has resulted to increase for more powerful servers and bigger data centers. With increase the power of electronics, thermal management and cooling of the equipment ... -
Experimental And Simulation Board Level Reliability Assessment Of Wafer Level Chip Scale Packages (WCSPs) Under Thermal Cycling
Various studies have been conducted to study the effect of varying board thickness on thermo-mechanical reliability of BGA packages. Wafer level chip scale packages (WLCSP) have also been studied in this regard to determine ... -
Experimental Assessment of Rack-Level Dynamic Direct to Chip Liquid Cooling for Data Center and IT Equipment Reliability
(2020-12-10)Data centers are used by organizations for storing, processing and distribution of data. These data centers are run through-out the year due to which their thermal management is a growing concern. A popular way of eliminating ... -
Experimental Characterization Of Femtosecond Laser Micromachining For Silicon Mold Fabrication And Hot Embossing For Polymer Microreplication
(Mechanical Engineering, 2007-08-23)Hot embossing is a fabrication technique employed for replicating microfeatures on a polymer surface that was primarily developed to fabricate MEMS devices for microfluidic applications. This manuscript deals with ... -
EXPERIMENTAL CHARACTERIZATION OF HYBRID COOLED CISCO SERVERS INCLUDING THE EFFECT OF WARM WATER COOLING
(2016-05-10)The information technology (IT) owners are experiencing a greater cooling challenge because of the increase in power density due to modern computational needs. The non-uniform power density in each server is forcing the ... -
EXPERIMENTAL CHARACTERIZATION OF VERTICALLY SPLIT DISTRIBUTION WET- COOLING MEDIA USED IN DIRECT EVAPORATIVE COOLING OF DATA CENTER
When operating in direct evaporative cooling (DEC) mode, the amount of moisture added to a system can be controlled by frequently modulating water supply to the wet cooling media. Though many challenges arise due to ... -
Experimental Feasibility Study Of Radial Injection Cooling Of Three-pad Radial Air Foil Bearings
(Mechanical Engineering, 2012-07-25)Air foil bearings use ambient air as a lubricant allowing environment-friendly operation. When they are designed, installed, and operated properly, air foil bearings are very cost effective and reliable solution to oil-free ... -
Experimental Identification Of Force Coefficients Of Hybrid Air Foil Bearings
(Aerospace Engineering, 2013-03-20)Successful applications for air foil bearings in small to midsize turbo-machinery have been acknowledged. Air foil bearings do not require oil lubricant thus they are capable of operating under much higher temperature than ...