Start-Up Behavior of Double-Condenser Loop Heat Pipe

Nagai, Hiroki; Muto, Miki; Murakami, Masahide; Ueno, S.

doi:10.2514/6.2005-4956

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2005

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“…Accordingly, the heat input power turned off. The reason for this phenomenon is thought that the high heating of hydro-accumulator pushed liquid into vapor channels outside of wick and left vapor inside the evaporator wick before the startup test for case (c) 4,8 . However, LHPRS started automatically because of the heat accumulated in aluminum block attached on the evaporator for a while after the heat input power of the evaporator and HA was turned off.…”

Section: Startup Testmentioning

confidence: 96%

Thermal performance verification for the JEM MAXI ...

Nagai

Ueno

2005

56th International Astronautical Congress of the International Astronautical Federation, the International Academy of Astronaut

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The thermal performance of the Loop Heat Pipe and Radiator System (LHPRS) has been verified in the thermal vacuum testing. LHPRS is used as the heat transport system to reject heat from the Monitor of All-sky X-ray Image (MAXI). Since this LHPRS was designed exclusively for the MAXI system, it has two-condensers in parallel connected to a common evaporator. Since it is possible that the heat transportation deviates to one condenser only, it had to be investigated how the double condensers affect the LHPRS performance under various conditions. Thermal vacuum testing was conducted for the engineering model of the MAXI/LHPRS. In this paper, the test result and performance verification of the MAXI/LHPRS are described.

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Section: Startup Testmentioning

confidence: 96%