DBPapers
DOI: 10.5593/SGEM2014/B41/S17.037

IMPACT OF FILLING RATIO ON THE THERMAL PERFORMANCE OF CLOSED LOOP PULSATING HEAT PIPE

Z. Kolkova, M. Malcho,
Wednesday 1 October 2014 by Libadmin2014

References: 14th International Multidisciplinary Scientific GeoConference SGEM 2014, www.sgem.org, SGEM2014 Conference Proceedings, ISBN 978-619-7105-15-5 / ISSN 1314-2704, June 19-25, 2014, Book 4, Vol. 1, 283-290 pp

ABSTRACT
For good, reliable and long-term use of electric components must dissipate heat from these devices and to provide cooling. One of the solutions available is to use a sealed heat pipe with a throbbing filling, where development meets the current requirements for intensification of heat removal and elimination of moving parts cooling systems. Heat pipes operate using phase change working fluid, and it is evaporation and condensation. They have a meandering shape and are characterized by high intensity of heat transfer, high durability and reliability. Advantage of these tubes is that it is not necessary to create the internal capillary structure for transporting liquid and they need any pump to the working fluid circulation. They have a simple structure, low cost, high performance, and they can be used for various structural applications. The choice of working fluid volume and performance affects thermal performance. Three types of working fluids were used in the performance ranges 0-80%.

Keywords: closed loop pulsating heat pipe, thermal performance, resistance, working fluid