Design of the SHARE II monogroove heat pipe

Brown, Richard F.; Kosson, R.; Ungar, Eugene K.

doi:10.2514/6.1991-1359

Cited by 11 publications

(5 citation statements)

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“…In 1983, on the eighth space shuttle flight, a 6-ft. monogroove heat pipe with Freon 21 as the working fluid was flight tested as a heat pipe radiator (Rankin, 1984). The Space Station Heat Pipe Advanced Radiator Element, which consisted of a 50-ft. long high capacity monogroove heat pipe encased in a radiator panel, was flown on the space shuttle in 1989 (Brown et al, 1990), and during a 1991 shuttle flight, two heat pipe radiator panels were separately flight tested (Brown et al, 1991). Heat pipe thermal buses were proposed which facilitate a connection between heat-generating components and external radiators (Morgownik and Savage, 1987;Amidieu et al, 1987;Peck and Fleischman, 1987).…”

Section: Aerospace and Avionicsmentioning

confidence: 99%

Heat Pipes: Review, Opportunities and Challenges

Faghri¹

2014

Frontiers in Heat Pipes

256

105

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A detailed overview of heat pipes is presented in this paper, including a historical perspective, principles of operations, types of heat pipes, heat pipe performance characteristics, heat pipe limitations, heat pipe frozen startup and shutdown, heat pipe analysis and simulations, and various applications of heat pipes. Over the last several decades, several factors have contributed to a major transformation in heat pipe science and technology . The first major contribution was the development and advances of new heat pipes, such as loop heat pipes, micro and miniature heat pipes, and pulsating heat pipes. In addition, there are now many new commercial applications that have helped contribute to the recent interest in heat pipes, especially related to the fields of electronic cooling and energy. For example, several million heat pipes are now manufactured each month since all modern laptops use heat pipes for CPU cooling. Numerical modeling, analysis, and experimental simulation of heat pipes have also significantly progressed due to a much greater understanding of various physical phenomena in heat pipes, as well as advances in computational and experimental methodologies.

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Section: Aerospace and Avionicsmentioning

confidence: 99%

Heat Pipes: Review, Opportunities and Challenges

Faghri¹

2014

Frontiers in Heat Pipes

256

105

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“…Some of the important applications are found in the areas of spacecraft cooling [48,49], electrical and electronic equipment cooling [50], medicine and human body temperature control [51][52][53], and heat recovery [54][55][56].…”

Section: Heat Pipe Heat Exchangersmentioning

confidence: 99%

Revolutionizing heat transport enhancement with liquid metals: Proposal of a new industry of water-free heat exchangers

Jing

2011

Front. Energy

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Water is perhaps the most widely adopted working fluid in conventional industrial heat transport engineering. However, it may no longer be the best option today due to the increasing scarcity of water resources. Furthermore, the wide variations in water supply throughout the year and across different geographic regions also makes it harder to easily access. To address this issue, finding new alternatives to replace water-based technologies is imperative. In this paper, the concept of a water-free heat exchanger is proposed and comprehensively analyzed for the first time. The liquid metal with a low melting point is identified as an ideal fluid that can flexibly be used within a wide range of working temperatures. Some liquid metals and their alloys, which have previously received little attention in thermal management areas, are evaluated. With superior thermal conductivity, electromagnetic field drivability, and extremely low power consumption, liquid metal coolants promise many opportunities for revolutionizing modern heat transport processes: serving as heat transport fluid in industries, administrating thermal management in power and energy systems, and innovating enhanced cooling in electronic or optical devices. Furthermore, comparative analyses are conducted to understand the technical barriers encountered by advanced water-based heat transfer strategies and clarify this new frontier in heat-transport study. In addition, the unique merits of liquid metals that could lead to innovative heat exchanger technologies are evaluated comprehensively. A few promising industrial situations, such as heat recovery, chip cooling, thermoelectricity generation, and military applications, where liquid metals could play irreplaceable roles, were outlined. The technical challenges and scientific issues thus raised are summarized. With their evident ability to meet various critical requirements in modern advanced energy and power industries, liquid metal-enabled technologies are expected to usher a new and global era of water-free heat exchangers.

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“…Moreover, the liquid viscous pressure drop is minimal because the liquid flows through a channel with a much larger cross-sectional area compared with that of traditional groove geometries. The circumferential grooves in the vapor channel not only provide an effective liquid distribution but also maximize the heat transfer area for the evaporation of liquid in the evaporator section [3,5,[12][13][14][15][16][17][18]. At present, among all the groove geometries, heat pipe with axial monogroove has the largest heat transport capability with high heat transfer coefficient.…”

Section: Introductionmentioning

confidence: 99%

Evaporative Heat Transfer Analysis of a Heat Pipe With Hybrid Axial Groove

Bai¹,

Lin

Peterson

2013

Journal of Heat Transfer

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Through the application of thin film evaporation theory and the fundamental operating principles of heat pipes, a hybrid axial groove has been developed that can greatly enhance the performance characteristics of conventional heat pipes. This hybrid axial groove is composed of a V-shaped channel connected with a circular channel through a very narrow longitudinal slot. During the operation, the V-shaped channel can provide high capillary pressure to drive the fluid flow and still maintain a large evaporative heat transfer coefficient. The large circular channel serves as the main path for the condensate return from the condenser to the evaporator and results in a very low flow resistance. The combination of a high evaporative heat transfer coefficient and a low flow resistance results in considerable enhancement in the heat transport capability of conventional heat pipes. In the present work, a detailed mathematical model for the evaporative heat transfer of a single groove has been established based on the conservation principles for mass, momentum and energy, and the modeling results quantitatively verify that this particular configuration has an enhanced evaporative heat transfer performance compared with that of conventional rectangular groove, due to the considerable reduction in the liquid film thickness and a corresponding increase in the evaporative heat transfer area in both the evaporating liquid film region and the meniscus region.

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Design of the SHARE II monogroove heat pipe

Cited by 11 publications

References 1 publication

Heat Pipes: Review, Opportunities and Challenges

Heat Pipes: Review, Opportunities and Challenges

Revolutionizing heat transport enhancement with liquid metals: Proposal of a new industry of water-free heat exchangers

Evaporative Heat Transfer Analysis of a Heat Pipe With Hybrid Axial Groove

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