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Development of hybrid loop heat pipe using pump assistance for cooling application on high heat flux device.
- Source :
- Journal of Mechanical Science & Technology; Aug2019, Vol. 33 Issue 8, p3685-3694, 10p
- Publication Year :
- 2019
-
Abstract
- Loop heat pipe (LHP) is an effective two-phase heat transfer device that utilizes evaporation and condensation of a working fluid. LHP is widely used in a passive cooling system, highly reliable and a very high thermal conductive device. However, extreme power density can cause dry-out in the evaporator section of LHP and might hinder the performance of the cooling system. The purpose of this research is to design and manufacture a new prototype of LHP by modifying the conventional LHP. The modification was performed by adding a diaphragm pump, called hybrid loop heat pipe (HLHP). The experimental results show that the installation of pumps in the modified LHP was able to prevent the occurrence of a dry out and reduce the operating temperature. Under a constant conductance mode, the pump was activated for 20 minutes and succeded in forcing the system to a new stable condition with a significant temperature drop. These results indicate that HLHP is very promising as a two-phase cooling system that can be proposed for devices that produce high heat flux. [ABSTRACT FROM AUTHOR]
- Subjects :
- HEAT pipes
HEAT flux
HEAT transfer
Subjects
Details
- Language :
- English
- ISSN :
- 1738494X
- Volume :
- 33
- Issue :
- 8
- Database :
- Complementary Index
- Journal :
- Journal of Mechanical Science & Technology
- Publication Type :
- Academic Journal
- Accession number :
- 137974675
- Full Text :
- https://doi.org/10.1007/s12206-019-0710-6