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Cascade variable-conductance heat pipe (A0076) (1984)

Grote, M. G. ; Calhoun, L. D., II

In: CASI

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Publication Date: 2006-02-14

Description: The objective is to verify the capability of a cascade variable conductance heat pipe (CVCHP) system to provide precise temperature control of long life spacecraft without the need for a feedback heater or other power sources for temperature adjustment under conditions of widely varying power input and ambient environment. Solar energy is the heat source and space the heat sink for thermally loading two series connected variable conductance heat pipes. Electronics and power supply equipment requirements are minimal. A 7.5 V lithium battery supplies the power for thermistor type temperature sensors for monitoring system performance, and a 28 V lithium battery supplies power for valve actuation.

Keywords: FLUID MECHANICS AND HEAT TRANSFER

Type: NASA. Langley Research Center Long Duration Exposure Facility (LDEF); p 66-69

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