...Xiaokang Mei; Yingxi Xie; Shitong Chai; Xiaohua Wu; Longsheng Lu Evaporation of working fluids inside capillary wicks determines the heat transfer capability of heat pipes. However, the relationship between wick parameters and evaporative heat transfer remains unclear. To establish a correlation...

... evaporation rate for screen mesh wicks is discussed. Heat pipes, vapor chambers, thermosyphons, and other two-phase thermal management devices are widely employed in micro-electronics cooling. The primary objective of these two-phase devices is to transport the generated thermal power to the ambient air...

...Volodymyr Baturkin; Vitali Feidelheimer; Kaname Sasaki; Eugen Mikulz; Tra-Mi Ho Variable conductance heat pipes (VCHPs) are the main part of the MASCOT (mobile asteroid surface SCOuT) lander thermal control system (TCS). They provide variable conductivity by utilizing the heat transfer limitations...

...Fabio Villa; Marco Marengo; Joël De Coninck Heat pipe characteristics are linked to the surface properties of the diabatic surfaces, and, in the evaporator, surface properties influence both the onset boiling temperature (T ONB ) and the critical heat flux (CHF). In this work, the effect of surface...

...Naveen Kumar Gupta; Arun Kumar Tiwari; Subrata Kumar Ghosh The enhancements in thermal performance of mesh wick heat pipe (HP) using TiO 2 /H 2 O nanofluid (0.5, 1.0, and 1.5 vol %) as working fluid for different (50, 100, and 150 W) power input were investigated. Results showed maximum 17.2...

... RANSFER . Manuscript received June 18, 2017; final manuscript received February 15, 2018; published online March 30, 2018. Assoc. Editor: Yuwen Zhang. 18 06 2017 15 02 2018 Experimental techniques Forced convection Gas turbine heat transfer Heat exchangers Heat pipes Heat...

... with multilayer insulator, and optical surface reflector windows are provided to radiate dissipated power as a heat. Various materials like thermal paint, thermal grease, thermal filler materials, and heat pipes are used for passive thermal management [ 2 ]. Aerospace Conduction Heat pipes Thermal...

... the performance enhancement effect of IAS on a smaller thermal resistance, but this effect had been demonstrated by Supowit et al. [ 11 ] using a grooved flat heat pipe. The thermo-siphon tests demonstrated the performance enhancement effect of IAS on delaying dry out. As mentioned in capillary test...

...Masao Furukawa The state of the art of thermally self-excited oscillatory heat pipe technology is briefly mentioned to emphasize that there exists no oscillating/pulsating heat pipe (OHP/PHP) suited to long-distance heat transport. Responding to such conditions, this study actively proposes a newly...

...Trijo Tharayil; Lazarus Godson Asirvatham; S. Rajesh; Somchai Wongwises The effect of nanoparticle coating on the performance of a miniature loop heat pipe (mLHP) is experimentally investigated for heat inputs of 20–380 W using distilled water as the working fluid. Applications include the cooling...

... heat to electricity. Conduction Heat pipes Natural convection Nuclear heat transfer Mixed convection The assembly heat generation rate value of 600 W used in this paper was taken from a study by Oak Ridge National Laboratory and was based on 5000 days in spent fuel pool after...

...Tingting Hao; Xuehu Ma; Zhong Lan Slug oscillations and heat transfer performance in the start-up stage of oscillating heat pipes (OHPs) with different surface wetting characteristics were investigated experimentally. The inner surfaces of the OHPs were superhydrophilic surface, hydrophilic surface...

... McGaughey. 14 09 2016 09 05 2017 Conduction Heat and mass transfer Heat pipes Exact solutions remain important in the age of computers because of the ongoing need for verification of fully numeric solutions [ 1 – 3 ] and as direct solvers in support of experimental measurement...

... pipes Thermal systems Nowadays, with the rapid development of science and technology, the amount of heat produced by electronic components during operation has been increasing rapidly. Phase-change heat transfer devices, such as heat pipes, are widely used for electronics cooling because...

...Guohui Zhou; Ji Li; Lucang Lv; G. P. Peterson Presented here are the results of an experimental investigation of two ultrathin miniature loop heat pipes (mLHPs) with different internal wicking structures: one with a primary wicking structure in the evaporator and a secondary wicking structure...

...; published online June 1, 2017. Assoc. Editor: Amy Fleischer. 26 09 2016 04 05 2017 Conduction Forced convection Heat pipes References [1] Bird , R. , Dai , G. C. , and Yarusso , B. J. , 1983 , “ The Rheology and Flow of Viscoplastic Materials ,” Rev. Chem...

...M. Halimi; A. Abbas Nejad; M. Norouzi Closed-loop pulsating heat pipes (CLPHPs) are a new type of two-phase heat transfer devices that can transfer considerable heat in a small space via two-phase vapor and liquid pulsating flow and work with various types of two-phase instabilities so...

...Brian Reding; Yiding Cao Heat pipe technology offers a possible cooling technique for structures exposed to high heat fluxes, as in turbomachinery such as compressors and turbines. However, in its current configuration as single heat pipes, implementation of the technology is limited due...

...Naoko Iwata; Hiroyuki Ogawa; Yoshiro Miyazaki It is reported that the operating temperature of an oscillating heat pipe (OHP) at an operating limit is not dependent on the ambient temperature but that the maximum heat transfer is dependent on this. In this study, using different ambient temperature...

...S. M. Pouryoussefi; Yuwen Zhang Numerical simulation has been conducted for the chaotic flow in a 3D closed-loop pulsating heat pipe (PHP). Heat flux and constant temperature boundary conditions were applied for evaporator and condenser sections, respectively. Water and ethanol were used as working...