Transient performance investigation of a space power system heat pipe

Merrigan, Michael A.; Keddy, E.S.; Sena, J. Tom

doi:10.2514/6.1986-1273

Cited by 21 publications

(11 citation statements)

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“…THROHPUT has been used to model the transient operation of a SPAR-8 heat pipe which was fabricated and tested at Los Alamos National Laboratory (Merrigan, Keddy and Sena, 1986). This heat pipe had an evaporator section of 0.4 m, an adiabatic section of 0.09 m, and an overall length of 4.0 m. It had an annular wick design and used lithium as a working fluid.…”

Section: Resultsmentioning

confidence: 99%

Transient Thermohydraulic Heat Pipe Modeling: Incorporating throhput into the cæsar Environment

Hall¹

2003

AIP Conference Proceedings

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Abstract. The THROHPUT code, which models transient thermohydraulic heat pipe behavior, is being incorporated into the CBSAR computational physics development environment. The C~ESAR environment provides many beneficial features for enhanced model development, including levelized design, unit testing, Design by ContractTM (Meyer, 1997), and literate programming (Knuth, 1992), in a parallel, object-based manner. The original THROHPUT code was developed as a doctoral thesis research code; the current emphasis is on making a robust, verifiable, documented, component-based production package. Results from the original code are included. THE THROHPUT CODEHeat pipes are structures that transport heat by the evaporation and condensation of a working fluid, giving them a high effective thermal conductivity. Many space-based uses for heat pipes have been suggested, and high temperature heat pipes using liquid metals as working fluids are especially attractive for these purposes. These heat pipes are modeled by the THROHPUT code (THROHPUT is an acronym for Thermal Hydraulic Response Of Heat Pipes Under Transients and is pronounced the same as the word "throughput"). Summary Description of THROHPUTThe THROHPUT code provides a detailed model of the transient, thermohydraulic behavior of liquid metal heat pipes. Currently, it models homogeneous or composite wicks in a cylindrical heat pipe structure. The boundary conditions assumed are: a time-dependent heat input in the evaporator section, zero heat transfer at the outer wall in the adiabatic section, and radiative cooling to a specified ambient temperature in the condenser section. The user specifies the dimensions of the heat pipe and of the wick structure.

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Section: Resultsmentioning

confidence: 99%

Transient Thermohydraulic Heat Pipe Modeling: Incorporating throhput into the cæsar Environment

Hall¹

2003

AIP Conference Proceedings

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“…In studies of dynamic behavior of heat pipes, three different areas of concern are startup, shut down and operational transients. Intensive studies have been carried out at the Los Alamos National Laboratory on startup and shut down operations of heat pipes (Merrigan, 1985 and1986;Merrigan et al, 1986;and Costello et al, 1986). Although the major part of these studies is experimental, a numerical analyses has been carried out using a simple one-dimensional model (Costello et al, 1986).…”

Section: Introducfionmentioning

confidence: 99%

Analysis of Heat Pipe Vapor Dynamics

Issacci

Catton

Heiss

et al. 1989

Chemical Engineering Communications

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“…Experimental investigation of frozen startup of liquid-metal heat pipes has been conducted by several investigators, including Maerrigan et al [83], for a molybdenum-lithium heat pipe with varying radiation heat rejection rates during freezing of the working fluid.…”

Section: Frozen and Startup Characteristicmentioning

confidence: 99%

Heat Pipe Theory and Modeling

Zohuri

2016

Heat Pipe Design and Technology

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In this chapter, we will discuss the theory of heat pipe with an approach that our readers have no knowledge of advanced mathematics, physics, and heat pipe. We cover the basic science and technology behind the heat pipe. Whenever we had to refer to basic knowledge of physics, fluid mechanics, and gas dynamics, Wiki site or very basic physics books to give the reader some general idea of specific topics of discussion in the particular section of this chapter along with heat pipe science were utilized. This section covers the fundamental theory behind the heat pipe based on different research papers and books available at present time in order to open a clear path for reader to design and fabricate their required heat pipe within their applications.

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Transient performance investigation of a space power system heat pipe

Cited by 21 publications

References 0 publications

Transient Thermohydraulic Heat Pipe Modeling: Incorporating throhput into the cæsar Environment

Transient Thermohydraulic Heat Pipe Modeling: Incorporating throhput into the cæsar Environment

Analysis of Heat Pipe Vapor Dynamics

Heat Pipe Theory and Modeling

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