Advanced Structurally Embedded Thermal Spreader Oscillating Heat Pipe …
23 小时之前 — I. Introduction. A N oscillating heat pipe (OHP) is constructed from a capillary channel that passes multiple times between one or more heat sources and heat sinks. The capillary channel is filled with a saturated fluid, using the pressure gradient to drive flow. This type of heat pipe has been demonstrated to transfer high heat loads and heat fluxes in …
Heat Out • Robust operation – Vapor tolerant: secondary wick provides liquid from CC to evaporator • Reservoir is plumbed in line with the flow circulation. – Operating temperature depends on heat load, sink temperature, and surrounding temperature. – External power is required for temperature control. Limited growth potential
Two Phase Systems | GSFC Thermal - NASA
The Heat Pipe is one of the most utilized systems in space applications for thermal management. "Heat Pipe" is the name given to a high performance heat transfer device which can transport heat at high rates and over relatively long distances with a small temperature difference.
The results indicated that the combination of liquid metal heat pipe cooling and surface transpiration or film cooling tended to mitigate the otherwise severe maximum leading edge surface temperatures expected on a SCRAMJET engine inlet
Overview: Heat Pipe Cooling for SOV Leading Edges AFRL/Lockheed Martin ♦ Identify Specific Operational Requirements, and SOV Configuration •Generated Performance Maps (Assuming Typical Requirements, and Configuration) ♦Using LM-TSTO Orbiter Requirements, Developed Heat Pipe Cooled Leading Edge Designs for Moderate to High Heat Flux Cases
A review of loop heat pipes for aircraft anti-icing applications
2018年2月5日 — A loop heat pipe ice protection system (LHPIPS) is an integrated thermal management technology that effectively utilizes the waste heat generated aboard the aircraft for anti-icing purposes without additional power input (exhibiting significant energy-saving gains over the conventional ice protection systems (CIPS)) and provides cooling for the ...
Heat pipe is a capillary two-phase heat transfer device. Why two-phase thermal system? Why capillary two-phase system? Typical Typical use use of of heat heat pipe: pipe: one one end end (the (the evaporator) evaporator) is is attached attached to to the the heat heat source source, and and the the opposite end (the condenser) to the heat sink.
Advanced Structurally Embedded Thermal Spreader Oscillating Heat Pipe …
2021年8月31日 — The ASETS-II flight experiment accomplished its mission to demonstrate functionality, characterize behavior, and explore the predicted limits of operation of oscillating heat pipes (OHPs) in a long-term microgravity environment.
A variable conductance heat pipe flight experiment
The Ames Heat Pipe Experiment (AHPE) is a variable conductance heat pipe/radiator system which was launched aboard the OAO-C spacecraft in August, 1972. All available flight data was reviewed and those from a few orbits were selected for correlation with predictions from an analytical model of the system.
A variable conductance heat pipe flight experiment
2012年8月16日 — Analysis of vapor–gas bubbles in a single artery heat pipe 1 Dec 2009 | International Journal of Heat and Mass Transfer, Vol. 52, No. 25-26 The OAO Heat Pipes: 8½ Years of Flight Data