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Thermal Characteristics of a Cylindrical Heat Pipe using Multi-Layer Screen Mesh Wick


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1 Dept. of Mech. Engg., Amrita School of Engg., Bengaluru, Amrita Vishwa Vidyapeetham, India
 

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Heat pipe is the most widely used heat exchanging device in removal of heat from any given system at a faster rate. The thermal characteristics of heat pipe with single and multi-layered screen mesh wicks have been observed with two working fluids water and acetone. Heat pipe of length 250 mm and 12.7 mm outer diameter, made of copper material is used in all the trials of with and without wick structure. A 100 mesh stainless steel screen wire mesh is chosen as wick structure. Experiments were conducted at different heat loads and various inclinations with 100% fill ratio in evaporator. The performance is measured based on total thermal resistance and overall heat transfer coefficient. The heat pipe is found effective at 60° inclination with acetone as a working fluid and with four layered screen mesh wick. Uncertainty in thermal resistance and heat transfer coefficient is calculated for a heat input of 10W at 0° and 60° inclinations.

Keywords

Heat Pipe, Screen Wire Wick, Multi-Layer Screen Mesh, Uncertainty.
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  • Thermal Characteristics of a Cylindrical Heat Pipe using Multi-Layer Screen Mesh Wick

Abstract Views: 224  |  PDF Views: 95

Authors

R. Sankar Rao
Dept. of Mech. Engg., Amrita School of Engg., Bengaluru, Amrita Vishwa Vidyapeetham, India
S. Bhanu Prakash
Dept. of Mech. Engg., Amrita School of Engg., Bengaluru, Amrita Vishwa Vidyapeetham, India

Abstract


Heat pipe is the most widely used heat exchanging device in removal of heat from any given system at a faster rate. The thermal characteristics of heat pipe with single and multi-layered screen mesh wicks have been observed with two working fluids water and acetone. Heat pipe of length 250 mm and 12.7 mm outer diameter, made of copper material is used in all the trials of with and without wick structure. A 100 mesh stainless steel screen wire mesh is chosen as wick structure. Experiments were conducted at different heat loads and various inclinations with 100% fill ratio in evaporator. The performance is measured based on total thermal resistance and overall heat transfer coefficient. The heat pipe is found effective at 60° inclination with acetone as a working fluid and with four layered screen mesh wick. Uncertainty in thermal resistance and heat transfer coefficient is calculated for a heat input of 10W at 0° and 60° inclinations.

Keywords


Heat Pipe, Screen Wire Wick, Multi-Layer Screen Mesh, Uncertainty.

References





DOI: https://doi.org/10.4273/ijvss.10.5.08