Modeling guided heat pipe design methodology and experimental validation for flat grooved heat pipes

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2021-2-24

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Saygan, Samet

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Heat pipes are commonly preferred thermal management devices due to their rapid heat transfer characteristics, small size and reliability. It is crucial to design heat pipes that accurately match the requirements of the system to be thermally managed. In the present study, a numerical design and diagnosis simulation tool for heat pipes is developed and verified for grooved heat pipes. A modular heat pipe experimental setup is designed and manufactured. In order to decide on the geometric parameters of the heat pipe to be tested, the setup is designed by the newly developed simulation tool. Predictions of the tool are validated by both the studies existing in the literature and the experiments conducted in the scope of this thesis. Finally, an innovative groove structure, namely Hierarchical Groove Architecture, is proposed for boosting the capillary pumping and improving evaporation performance, two functions the enhancement of which are important in operating heat pipes with higher performance. The simulations for proving these improvements are modeled and run and the boosting of the capillary pumping is validated with the experiments. The design and diagnosis tool for heat pipes developed in the scope of this thesis will allow researchers/designers to simulate the performance of grooved heat pipes rapidly and accurately and utilization of hierarchical groove architecture will improve both capillary pumping and evaporation performance of heat pipes.

Subject Keywords

Heat pipe modeling, Modular experimental design, Grooved heat pipe, Capillary pumping and evaporation enhancement, Hierarchical groove architecture

URI

https://hdl.handle.net/11511/89574

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Graduate School of Natural and Applied Sciences, Thesis

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Citation Formats

S. Saygan, “Modeling guided heat pipe design methodology and experimental validation for flat grooved heat pipes,” Ph.D. - Doctoral Program, Middle East Technical University, 2021.