Ceramic Heat Pipes for High Temperature Application

Hack, Nina; Unz, Simon; Beckmann, Michael

doi:10.1016/j.egypro.2017.07.147

Cited by 14 publications

(8 citation statements)

References 12 publications

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“…However, manufacturing HPs with complex geometries and functions for electrical machines' thermal management by conventional manufacturing ways is challenging and is not cost-effective. Therefore, the research scientists consider fabricating the complex structure HPs with new materials, for instance, polymers [51], ceramics [52], [53], and metallic alloys [54], [55] using the AM approach. Figure. 14 shows aluminum alloys (AlSi12) HPs with two types of wick shapes manufactured by the SLM approach [56].…”

Section: ) Additive Manufacture Heat Pipementioning

confidence: 99%

Opportunities and Challenges of Utilizing Additive Manufacturing Approaches in Thermal Management of Electrical Machines

et al. 2021

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The additive manufacturing approach is considered a new manufacturing technology method and is evolving dynamically in recent years. It is advancing and achieving as the key enabling technology in a wide range of applications, from medical sciences to the aerospace and automotive industries. This novel approach opens a new path to overcome the conventional manufacturing problems and challenges by providing more design freedom, new ranges of materials, lightweight and complex geometries. According to demands metrics such as lightweight and high power density motors. This offers clear motivation to develop the advanced thermal management method with new materials and a novel additive manufacturing (AM) approach. The paper aims to provide a comprehensive review of all the attempts in various electrical machines' thermal management methods using AM method. It considers the opportunities and challenges that designers are facing while implementing these approaches. Finally, the authors make some comments/forecasts on how the AM could improve the performance and manufacturability of the future thermal management system of electrical machines INDEX TERMS Additive manufacturing (AM), cooling systems, electrical machine, manufacturing techniques, thermal management, three-dimensional (3-D) printing, traction motors.

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Section: ) Additive Manufacture Heat Pipementioning

confidence: 99%

Opportunities and Challenges of Utilizing Additive Manufacturing Approaches in Thermal Management of Electrical Machines

et al. 2021

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“…However, fabrication of more geometrically/functionally complex HP based solutions for thermal management of PEMD might be challenging and/or cost ineffective when considering the conventional materials and manufacturing techniques. In that context, there has been considerable interest in employing new materials like polymers [5], ceramics [7], [8], metallic alloys and techniques, e.g. additive manufacturing AM [6], [29]- [34], [37]- [39] for fabrication of integrated two-phase heat removal systems.…”

Section: Construction and Materials Compatibilitymentioning

confidence: 99%

Opportunities and Challenges of Employing Heat-Pipes in Thermal Management of Electrical Machines

Wróbel

McGlen

2020

2020 International Conference on Electrical Machines (ICEM)

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Thermal management of power electronics, electrical machines and drives has become one of the key enabling factors in delivering of the future high-specific-output solutions for low-/zero-emission electrified propulsion. This paper reviews heat-pipe technology in application to electrical machines with focus on opportunities and challenges associated with successful deployment of such heat transfer/removal approach. Although, the use of heat pipes in electrical machines has been explored by numerous authors over decades of research, continuous developments in the materials and manufacturing techniques have opened new design avenues, with the high-rate heat transfer, low-added-weight, high-level of integration and reliability being some of the benefits of heat-pipe enabled cooling solutions. In this paper, underpinning fundamentals of the heat pipes construction and operation are discussed, with emphasis on the new/emerging solutions allowing for a more measured integration of heat-pipe-based or assisted thermal management systems in electrical machines. A number of examples of employing heat pipes in commercial and research applications are provided from the available literature together with the authors forecasts of the possible future technology advancement.

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“…For high‐temperature applications, this can be potassium, sodium, lithium, or silver . Beside the conventional high‐temperature working fluids, zinc can also be used for ceramic high‐temperature heat pipes because of its favorable thermo‐physical properties and its inertness against the ceramic casing and the soldering material . Alongside the axis of the heat pipe, three sections can be defined (Fig.…”

Section: Principle Of Function Of Heat Pipesmentioning

confidence: 99%

Calculation Approach for Ceramic Heat Pipe Heat Exchangers for High‐Temperature Applications

2018

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Metal materials show poor lifetime behavior under high‐temperature conditions and aggressive atmospheres. An alternative solution is the use of ceramic material, e.g., silicon carbide ceramics. These ceramics cannot be processed and joined like metal materials. For this reason, the simple geometry of a heat pipe can be used as a basic design for ceramic heat exchanger systems in the high‐temperature process technology for industrial and power plant applications. Heat pipes are hermetically sealed tubes filled with a working fluid. By transferring heat to one side and by releasing heat from the other side a two‐phase cycle is set up. For these apparatuses a numerical calculation model for a more exact determination of the working behavior of large units under high‐temperature conditions is introduced, considering both convective and radiative heat transfer.

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Ceramic Heat Pipes for High Temperature Application

Cited by 14 publications

References 12 publications

Opportunities and Challenges of Utilizing Additive Manufacturing Approaches in Thermal Management of Electrical Machines

Opportunities and Challenges of Utilizing Additive Manufacturing Approaches in Thermal Management of Electrical Machines

Opportunities and Challenges of Employing Heat-Pipes in Thermal Management of Electrical Machines

Calculation Approach for Ceramic Heat Pipe Heat Exchangers for High‐Temperature Applications

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