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.
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Showing 1 to 15 of 15 for “"cooling channel"”.
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Transverse heat transfer in a cable-in-conduit conductor with central cooling channel
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1995.
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Evaluation on performance of square finned conformal cooling channel (sfccc) fabricated by selective laser melting (slm) on plastic moulded part
In plastic injection moulding (PIM) process, the cooling stage is the most important phase because it significantly affects the productivity and quality of the molded part. Thus, the cooling system need to be emphasized in designing the injection mould system. The application of conformal cooling …
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Structural Optimization of Regeneratively Cooled Rotating Detonation Rocket Engines
… detonative loading. Regenerative cooling is being considered for thermal management in RDREs, but there is concern that the cooling channels may fail by fatigue due to the detonative loads. In the present work a structural optimization protocol for regeneratively cooled RDREs is …
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Performance evaluation of alsi10mg mould insert material fabricated by selective laser melting process
… 34 hours. By introducing square fin conformal cooling channel (SFCCC) in PIM tool inserts has shorten the cycle time and improved the injected product quality due to uniform and faster heat dissipation during the moulding cycle. Whereas the total impact of conformal cooling channel and AlSi10Mg …
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Neutrino Factory Targets and the MICE Beam
… of this facility are the proton driver and cooling channel. This thesis will present simulation work focused on determining the optimal proton driver energy to maximise pion production and also simulation of the transport of this pion flux through some candidate transport lattices. …
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Use of dielectric material in muon accelerator RF cavities
… idea for accomplishing this is called a helical cooling channel (HCC), and requires placing the accelerating structure in a solenoid. The RF (radio frequency) accelerating structure in a muon accelerator should be short in the longitudinal direction, small enough in the transverse direction to …
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An inverted pressurized water reactor design with twisted-tape swirl promoters
… (TTs) as swirl flow promoters inside the IPWR cooling channels. The study focuses on optimizing the cooling channel design with twisted tapes to improve the DNB performance alongside using more powerful reactor coolant pumps to deliver higher core pressure drop limit. Four steady state design …
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Investigation of Pin Fin Cooling Channels for Applications in Gas Turbines
… turbine blades are often cooled using internal cooling channels to prevent failure at temperatures beyond material limitations. Pin fin channels are commonly used on the trailing edge of the blades, where they enhance heat transfer and also provide structural support. This study focuses on the …
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A 3D Computational Fluid Dynamics Model Validation for Candidate Molybdenum-99 Target Geometry
… range, helium gas is used to server as a cooling agent that flows through narrow channels between the target disks. This thesis investigated the cooling performance on a series of new geometry designs of the cooling channel by using Computational Fluid Dynamics (CFD) software ANSYS FLUENT …
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Heat Transfer for High Aspect Ratio Rectangular Channels in a Stationary and Rotating Serpentine Passage with Turbulated and Smooth Surfaces
… a stationary three passage serpentine internal cooling channel for a range of engine representative Reynolds numbers. The spacing between the sidewalls of the serpentine passage is fixed and the aspect ratio (AR) is adjusted to 1:1, 1:2, and 1:6 by changing the distance between the top and …
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Numerical optimisation and theoretical analysis of complex microchannel heat exchangers
… 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 numerically optimise and compare the performance of combined …
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Conformal cooling and rapid thermal cycling in injection molding with 3D printed tools
… for injection molding tooling through: i)cooling lines which are conformal to the mold surface which provide improved uniformity and stability of mold temperature and ii) tools with low thermal inertia which, in combination with conformal fluid channels allow for rapid heating and cooling …
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Effect Of Coriolis And Centrifugal Forces On Turbulence And Transport At High Rotation And Buoyancy Numbers
… respectively, both which employ rotating cooling channels so that materials do not fail under high temperature and high stress environment. Prediction of fluid flow and heat transfer inside internal cooling channels that rotate at high rotation number and high density ratio similar to …
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Návrh experimentálního přípravku pro testování účinnosti chladících kanálů
Práce se zabývá návrhem a konstrukcí experimentálního zařízení pro měření účinnosti chladicích kanálů vyskytujících se v elektrických strojích. Zařízení měří součinitel přestupu tepla při turbulentním proudění vzduchu kanálem a součinitel tření v kanálu. Na základě těchto údajů lze usuzovat na …