Application of nanofluid in an inclined mesh wicked heat pipes

Wang, Pingyang; Chen, Xiujuan; Liu, Zhenhua; Liu, Yi‐Peng

doi:10.1016/j.tca.2012.04.011

Cited by 68 publications

(17 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It has been widely accepted that an insufficient or excessive inclination angle could harm the heat pipe performance [30]. An insufficient inclination angle may induce a poor return of backflow to the evaporator [52], while an excessive inclination angle will reduce the heat dissipation efficiency by decreasing the heat exchange time at the condenser [31,52].…”

Section: Mechanisms Of the Effect Of Inclination Angle On Heat Pipe Pmentioning

confidence: 99%

Thermal Characterisation of Micro Flat Aluminium Heat Pipe Arrays by Varying Working Fluid and Inclination Angle

et al. 2018

View full text Add to dashboard Cite

Featured Application: solar collector; solar thermal system; thermal energy storage system; heat exchanger.Abstract: A micro heat pipe array is desirable owing to its high heat transfer capacity, compact size, and high surface-volume ratio compared with conventional heat pipes. In this study, micro flat aluminium heat pipe arrays (MF-AHPA) were developed and systematically characterised by varying working fluid and inclination angle. Three MF-AHPAs with different working fluids, i.e., acetone, cyclopentane, and n-hexane, were fabricated. The acetone MF-AHPA achieved the best thermal performance. The underlying mechanism is the small flow viscous friction and small shearing force of liquid vapour. Additionally, the experimental results show a strong dependence of MF-AHPAs' thermal resistance on the orientation due to the gravitational effect on axial liquid distribution. Finally, a criterion is proposed to determine the optimal inclination angle of the MF-AHPA. In the present study, a volumetric fraction (α a,c ) of 74 ± 7% has been shown to well predict an optimal inclination angle of the MF-AHPAs with various working fluids and heat loads.

show abstract

Section: Mechanisms Of the Effect Of Inclination Angle On Heat Pipe Pmentioning

confidence: 99%

Thermal Characterisation of Micro Flat Aluminium Heat Pipe Arrays by Varying Working Fluid and Inclination Angle

et al. 2018

View full text Add to dashboard Cite

show abstract

“…The uncertainties in the measurement of the heat input, thermal resistance, heat flux and heat transfer coefficient are calculated as [23]:…”

Section: Data Reduction and Uncertainty Analysismentioning

confidence: 99%

Improvement of heat transfer characteristics of cylindrical heat pipe by using SiC nanofluids

Ghanbarpour

Nikkam

Khodabandeh

et al. 2015

Applied Thermal Engineering

View full text Add to dashboard Cite

“…Wang et al [27] Water/CuO 50 nm & 0.5-2.0 wt.% The inclination angle of 45°corresponds to the best thermal performance for heat pipes Hung et al [15] Water/Al 2 O 3 20 nm & 0.5-3.0 wt.% The tilt angle that maximizes the thermal performance of the heat pipe ranges from 40°to 70°T eng et al [28] Water/Al 2 O 3 20-30 nm & 0.5-3.0 wt.% The optimal thermal efficiency for heat pipes occurred at 60°L iu et al [29] Water/CuO 50 nm & 0.5-2.0 wt.% The inclination angle of 45°corresponds to the best thermal performance for heat pipes Senthilkumar et al [30] Water temperatures of the heat pipe surface were measured using five K-type thermocouples by mounting two thermocouples at the surface of the evaporator, one at the surface of the adiabatic section and the rest at the surface of the condenser section.…”

Section: Authormentioning

confidence: 99%

“…The uncertainties in the measurement of the heat input, thermal resistance, heat flux and heat transfer coefficient are calculated as described in [27], using the Eqs. (6-9) below:…”

Section: Data Reductionmentioning

confidence: 99%