Development of an experimental loop heat pipe for application in future space missions

Riehl, Roger R.; Dutra, Thiago

doi:10.1016/j.applthermaleng.2004.05.010

Cited by 96 publications

(28 citation statements)

References 13 publications

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“…Loop heat pipe (LHP) is a reliable thermal mechanism, which has been developed in different configurations and types for different applications, e.g., satellites/spacecrafts [1][2][3], electronics [4][5][6] and heat-recovery systems [7][8][9]. In recent years, application of the LHP in solar energy field has attracted the growing attention owing to the fast development of renewable energy technologies [10][11][12][13][14][15][16], of which the LHPs normally work under the gravity-assisted operational conditions.…”

Section: Introductionmentioning

confidence: 99%

Comparative study of a novel liquid–vapour separator incorporated gravitational loop heat pipe against the conventional gravitational straight and loop heat pipes – Part II: Experimental testing and simulation model validation

Zhang

Shen

et al. 2015

Energy Conversion and Management

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Section: Introductionmentioning

confidence: 99%

Comparative study of a novel liquid–vapour separator incorporated gravitational loop heat pipe against the conventional gravitational straight and loop heat pipes – Part II: Experimental testing and simulation model validation

Zhang

Shen

et al. 2015

Energy Conversion and Management

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“…Steady-state and transient performances were studied experimentally in refs. [11][12][13][14][15][16]. But few studies have been done for LHPs with bypass valve.…”

Section: Introductionmentioning

confidence: 96%

Operation characteristics of AMS-02 loop heat pipe with bypass valve

Wang

Joseph

Luo

et al. 2011

Sci. China Technol. Sci.

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Loop heat pipes (LHPs) were designed for the alpha magnetic spectrometer (AMS-02) to dissipate heat from the cryocoolers. A bypass valve is applied to the LHP to keep the cryocooler temperature above its limit (−20°C) in cold environment. Extensive experiments were performed on operation characteristics of LHPs with the bypass valve for AMS-02 during thermal vacuum and thermal balance (TVTB) test. We found that the bypass valve can start up successfully in cold environment. With the bypass valve, the evaporator temperature is stable and can meet the requirement of the cryocooler. We analyzed three operating modes of the bypass valve. Set point temperature and regulation temperature shifts were observed and their relations with the bypass valve temperature were given. alpha magnetic spectrometer, loop heat pipe, bypass valve, operation characteristic Citation: Wang N H, Burger J, Luo F, et al. Operation characteristics of AMS-02 loop heat pipe with bypass valve.

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“…According to the experimental results, it is difficult to predict the shape of the LHP operating curve, because heat leak at the the evaporator/reservoir is strongly influenced by the E/CC design (wall materials and wick characteristics). U-shaped curves have been most often observed for metal capillary wicks, with ammonia as the working fluid (Maydanik, 2004;Chen et al, 2006) and when the temperature difference between the sink and the ambient is large, whereas curves with flattened shapes have been usually observed for low-thermalconductivity wicks with low-pressure working fluids such as methanol, ethanol, or acetone (Boo and Chung, 2004;Riehl and Dutra, 2005).…”

Section: Steady-state Operation and Performance Indicatorsmentioning

confidence: 99%

State-of-the-Art Experimental Studies on Loop Heat Pipes

Launay¹,

Vallée²

2011

Frontiers in Heat Pipes

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The present study provides a concise overview of the main feature evolution of Loop Heat Pipe (LHP) designs, in particular on the evaporator/compensation chamber, based on experimental studies published between 1998 and 2010. It presents a synthesis of results on LHP performances at steady-state, and observations related to the LHP dynamic behaviours, as start-up or oscillating behaviours. The objective of this review is to gather as much information from the LHP experimental studies so as to provide a database, and thus promote the development of tools for understanding and predicting the LHP behaviors. The review shows some omissions in the LHP description and in the results presentation that makes these data difficult to use for further studies. This review should promote some coordination for future experimental works on LHP.

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Development of an experimental loop heat pipe for application in future space missions

Cited by 96 publications

References 13 publications

Comparative study of a novel liquid–vapour separator incorporated gravitational loop heat pipe against the conventional gravitational straight and loop heat pipes – Part II: Experimental testing and simulation model validation

Comparative study of a novel liquid–vapour separator incorporated gravitational loop heat pipe against the conventional gravitational straight and loop heat pipes – Part II: Experimental testing and simulation model validation

Operation characteristics of AMS-02 loop heat pipe with bypass valve

State-of-the-Art Experimental Studies on Loop Heat Pipes

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