In the current study, the performance of a high temperature, cylindrical heat pipe under various operating conditions is investigated numerically. To find the appropriate geometrical and working parameters of the heat pipe, a two-dimensional axisymmetric model is developed to describe the vapor and liquid flows and heat transfers in the vapor core, the wick, and the wall regions. Sodium and stainless steel are selected as the working fluid, the wick material, and the container material. The compressibility of the vapor and viscous dissipation are taken into account. In the wick region, the Darcy–Brinkman–Forchheimer model is applied to simulate the liquid sodium characteristics. The effect of wick type, heat input, and operating temperature are studied on the overall performance of the heat pipe as well as vapor and liquid pressure drops. Screen wick, sintered powder wick and felt wick are selected. The results showed that, for the selected wick types, the sintered powder wick resulted in the largest liquid pressure drop and the felt wick resulted in the lowest thermal resistance. In addition, the influence of operating temperature on thermal resistance diminishes with increasing temperature.
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ASME 2018 International Mechanical Engineering Congress and Exposition
November 9–15, 2018
Pittsburgh, Pennsylvania, USA
Conference Sponsors:
- ASME
ISBN:
978-0-7918-5212-5
PROCEEDINGS PAPER
Numerical Study on the Performance Characteristics of Cylindrical Heat Pipes With Differing Wick Type
Mahboobe Mahdavi,
Mahboobe Mahdavi
Gannon University, Erie, PA
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Ajaysinh Solanki,
Ajaysinh Solanki
Gannon University, Erie, PA
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Vivek Pawar
Vivek Pawar
Gannon University, Erie, PA
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Mahboobe Mahdavi
Gannon University, Erie, PA
Saeed Tiari
Gannon University, Erie, PA
Ajaysinh Solanki
Gannon University, Erie, PA
Vivek Pawar
Gannon University, Erie, PA
Paper No:
IMECE2018-86607, V08BT10A062; 9 pages
Published Online:
January 15, 2019
Citation
Mahdavi, M, Tiari, S, Solanki, A, & Pawar, V. "Numerical Study on the Performance Characteristics of Cylindrical Heat Pipes With Differing Wick Type." Proceedings of the ASME 2018 International Mechanical Engineering Congress and Exposition. Volume 8B: Heat Transfer and Thermal Engineering. Pittsburgh, Pennsylvania, USA. November 9–15, 2018. V08BT10A062. ASME. https://doi.org/10.1115/IMECE2018-86607
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