Steady and transient behavior of a double-condenser design LHP for MAXI

Hiroki Nagai; Miki Muto; Masahide Murakami; Shiro Ueno; Masaru Matsuoka

Steady and transient behavior of a double-condenser design LHP for MAXI

Hiroki Nagai, Miki Muto, Masahide Murakami, Shiro Ueno, Masaru Matsuoka

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

A loop heat pipe (LHP) is used as the heat transport device to reject heat from the Monitor of All-sky X-ray Image (MAXI). Since this LHP was designed exclusively for the MAXI system, it is different from conventional LHPs in configuration, a double-condenser design. We experimentally investigated the effects of the particular design of this LHP on the heat transfer performance by using the LHP Ground Test Unit (GTU) on the ground. The steady heating experiment was carried out to investigate the steady state performance of LHP. When the two condensers were cooled at different temperatures under a steady heating condition, a quasi-periodic temperature oscillation was observed in the evaporator and accumulator area. We experimentally investigated the cause and mechanism of the temperature oscillation.

Original language	English
Title of host publication	36th AIAA Thermophysics Conference
Publication status	Published - 2003 Dec 1
Externally published	Yes
Event	36th AIAA Thermophysics Conference 2003 - Orlando, FL, United States Duration: 2003 Jun 23 → 2003 Jun 26

Publication series

Name	36th AIAA Thermophysics Conference

Other

Other	36th AIAA Thermophysics Conference 2003
Country	United States
City	Orlando, FL
Period	03/6/23 → 03/6/26

ASJC Scopus subject areas

Aerospace Engineering
Mechanical Engineering
Condensed Matter Physics

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title = "Steady and transient behavior of a double-condenser design LHP for MAXI",

abstract = "A loop heat pipe (LHP) is used as the heat transport device to reject heat from the Monitor of All-sky X-ray Image (MAXI). Since this LHP was designed exclusively for the MAXI system, it is different from conventional LHPs in configuration, a double-condenser design. We experimentally investigated the effects of the particular design of this LHP on the heat transfer performance by using the LHP Ground Test Unit (GTU) on the ground. The steady heating experiment was carried out to investigate the steady state performance of LHP. When the two condensers were cooled at different temperatures under a steady heating condition, a quasi-periodic temperature oscillation was observed in the evaporator and accumulator area. We experimentally investigated the cause and mechanism of the temperature oscillation.",

author = "Hiroki Nagai and Miki Muto and Masahide Murakami and Shiro Ueno and Masaru Matsuoka",

year = "2003",

month = dec,

day = "1",

language = "English",

isbn = "9781624100970",

series = "36th AIAA Thermophysics Conference",

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note = "36th AIAA Thermophysics Conference 2003 ; Conference date: 23-06-2003 Through 26-06-2003",

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T1 - Steady and transient behavior of a double-condenser design LHP for MAXI

AU - Nagai, Hiroki

AU - Muto, Miki

AU - Murakami, Masahide

AU - Ueno, Shiro

AU - Matsuoka, Masaru

PY - 2003/12/1

Y1 - 2003/12/1

N2 - A loop heat pipe (LHP) is used as the heat transport device to reject heat from the Monitor of All-sky X-ray Image (MAXI). Since this LHP was designed exclusively for the MAXI system, it is different from conventional LHPs in configuration, a double-condenser design. We experimentally investigated the effects of the particular design of this LHP on the heat transfer performance by using the LHP Ground Test Unit (GTU) on the ground. The steady heating experiment was carried out to investigate the steady state performance of LHP. When the two condensers were cooled at different temperatures under a steady heating condition, a quasi-periodic temperature oscillation was observed in the evaporator and accumulator area. We experimentally investigated the cause and mechanism of the temperature oscillation.

AB - A loop heat pipe (LHP) is used as the heat transport device to reject heat from the Monitor of All-sky X-ray Image (MAXI). Since this LHP was designed exclusively for the MAXI system, it is different from conventional LHPs in configuration, a double-condenser design. We experimentally investigated the effects of the particular design of this LHP on the heat transfer performance by using the LHP Ground Test Unit (GTU) on the ground. The steady heating experiment was carried out to investigate the steady state performance of LHP. When the two condensers were cooled at different temperatures under a steady heating condition, a quasi-periodic temperature oscillation was observed in the evaporator and accumulator area. We experimentally investigated the cause and mechanism of the temperature oscillation.

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T3 - 36th AIAA Thermophysics Conference

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