Loop heatA loop heat pipe must start successfully before it can commence its service. The start-up transient represents one of the most complex phenomena in the loop heat pipe operation. This paper discusses va
Experimental analysis on the evaporator startup behaviors in a trapezoidally grooved heat pipe 2021, Applied Thermal Engineering Citation Excerpt : There have been several theoretical and experimental investigations on liquid–liquid/gas–liquid two-phase flow [16] and heat transfer [17]. In addition...
Experiment research on the effect of the evaporator’s configuration design of an innovative ultra-thin looped heat pipe Int J Heat Mass Transfer (2016) Y.F.Maydanik Loop heat pipes Appl Therm Eng (2005) L.Baiet al. Experimental investigation of startup behaviors of a dual compensation chamb...
The alpha magnetic spectrometer uses four stirling cryocoolers to extract parasitic heat from the shield around the helium-cooled magnet. Loop heat pipes, with propylene as the working fluid, transfer heat from the cryocoolers. In this paper, we investigated the startup behaviors of the loop ...
Loop Heat Pipe Startup BehaviorsEvaporatorsHeat pipesPressure distributionReservoirsTemperature distributionThermodynamicsVaporsNucleate boilingSurgesTemperature controlNo abstract availableJentung Ku46th International Conference on Environmental SystemsInternational Conference on Environmental Systems...
Loop heat pipeBypass valveTransient behaviorStartupTemperature oscillationStartup and oscillation characteristics of loop heat pipes (LHPs) for alpha magnetic spectrometer (AMS) cryocoolers during thermal vacuum and thermal balance (TVTB) testing were determined. The mechanism of the physical process ...
heat load, acceleration magnitude and TEC assist on the startup and operating performance of the DCCLHP.Experimental results indicate that the DCCLHP can get to a steady-state operation when the heat load changes from 25 W to 300 W under terrestrial gravity.While under acceleration conditions,...
Also, the complex dynamic behavior of bubbles under high heat flux brings sophisticated heat transfer and flow characteristics in TPTLs. More attentions are focused on the circulation flow rate [23], boiling behaviors in the evaporator [24,25], instability phenomena [1,26,27], etc., which hav...
Applied Thermal Engineering 29: 1447-1456.Lizhan Bai , Lin Guiping , Wen Dongsheng, Feng Jianting, "Experimental investigation of startup behaviors of a dual compensation chamber loop heat pipe with insufficient fluid inventory," in Appl. Therm. Eng. (2008)...
Being a nonlinear"dynamical"system,a Loop Heat Pipe(LHP)would exhibit very much the same performance traits typical of any other analogous systems in regard to operational stability/instability.LHPs are identified as self-oscillators displaying persistent oscillatory behaviors without being forced by an...