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ENCIT 2020
18th Brazilian Congress of Thermal Sciences and Engineering
A CORRELATION FOR ADIABATIC THERMAL RESISTANCE OF HORIZONTAL PULSATING HEAT PIPES
Submission Author:
Sabrina dos Santos Ferreira , SP
Co-Authors:
Sabrina dos Santos Ferreira, Cristiano Tibiriçá
Presenter: Sabrina dos Santos Ferreira
doi://10.26678/ABCM.ENCIT2020.CIT20-0409
Abstract
In this paper a new correlation for thermal resistance of the adiabatic section in pulsating heat pipes in the horizontal position is presented. The correlation is based on the Kutateladze number and was adjusted with new experimental data for polymeric tube pulsating heat pipes. The experimental tests were obtained for pulsating heat pipes of 20 to 80 number of turns, 1.6 mm and 2.0 mm internal diameter and for R134a refrigerant. The mean absolute error between the values obtained experimentally and the values obtained via the proposed correlation varied in the range of 11% to 54%.
Keywords
correlation, Adiabatic Thermal Resistance, Pulsating Heat Pipe, Horizontal, Kutateladze number
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