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 9 of 9 for “"Thermosyphons"”.
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Hybrid solar thermoelectric systems utilizing thermosyphons for bottoming cycles
… cycle temperatures of 776 K. In addition, thermosyphons with low wall conductivities (> 1.2 W/mK) and low solar concentrations (< 4 Suns) have comparable system efficiencies which suggests that lower cost materials, including glass, can be used. Finally, five bottoming cycle applications …
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A TWO-PHASE CFD ANALYSIS OF GEYSERING WITH APPLICATIONS TO THERMOSYPHONS AND LOW PRESSURE POOL BOILING
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-12-04 without embargo terms
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Experimental Investigation and Validation of Boiling and Condensation Thermal Resistances in Cylindrical Thermosyphons and Screen-Wick Heat Pipes.
Thermosyphons (TS) and heat pipes (HP) are passive two-phase thermal transport devices capable of transferring high heat loads with small temperature differences in thermal management applications. This thesis aims to improve the design-stage prediction of TS and HP performance, where device …
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Experimental Investigation and CFD Modelling of a Thermosyphon-equipped Heat Exchanger used in Low-grade Waste Heat Recovery
… heat pipes, also known as two-phase closed thermosyphons, lack a sintered wick structure within and are therefore easier to manufacture in large quantities making them ideal heat sinks in macroscopic applications such as industrial waste heat recovery.<br/><br/>The subject of this work is …
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THERMOSYPHON FLOODING IN REDUCED GRAVITY ENVIRONMENTS
… presented that predicts the flooding limits for thermosyphons in earth’s gravity and lunar gravity with a 95% confidence level of +/- 5W.
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Two-phase closed thermosyphon with two-fluid mixtures.
… the performance of stationary two-phase closed thermosyphons with two-fluid mixtures. Three mixtures were used as the working fluids: (1) water-ethanol, (2) water-ethyleneglycol and (3) water-glycerol. The results are presented to show the effects of ratio of two fluid component, mean operating …
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Latent Heat Thermal Energy Storage with Embedded Heat Pipes for Concentrating Solar Power Applications
… embedding gravity-assisted wickless heat pipes (thermosyphons) within a commercial-scale LHTES system is explored through use of a thermal network model. A new design is proposed for charging and discharging a large-scale LHTES system. The size and cost of the LHTES system is estimated and …
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Air Cooling of High-Heat-Flux Electronics Using Wettability-Engineered Vapor Chambers
… in thermal management -like vapor chambers, thermosyphons, and oscillating heat pipes- transport heat from one place to another or spread heat over a wider area, often reducing high fluxes, allowing traditional methods to perform better and handle higher heat loads. Recent research …
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Experimental and Numerical Study of Dual-Chamber Thermosyphon
… unique results on the thermal performance of thermosyphons, and development of a analytical model of condensation in rectangular microchannels, which identified the system parameters that affects the flow and thermal performance during condensation.