Category Archives: Copper-E

Figure 3. Radio filter produced by means of the RSF/RheoMetalTM process. A unique feature of this product is the weight reduction of 1.6 kg facilitated by wall thicknesses as low as 0.4 mm at 40 mm height (aspect ratio 100). High conductivity low Si alloys were used, and thermal transport properties further increased by up to 20% depending on the alloy composition by means of heat treatments, as depicted in the top right diagram by means of arrows denoting the course of the latter (images provided by Comptech AB, Skillingaryd, Sweden).

Advances in Metal Casting Technology: A Review of State of the Art, Challenges and Trends—Part II: Technologies New and Revived

Open Access by Dirk Lehmhus Fraunhofer Institute for Manufacturing Technology and Advanced Materials IFAM, Wiener Straße 12, 28359 Bremen, GermanyMetals 2024, 14(3), 334; https://doi.org/10.3390/met14030334Submission received: 25 February 2024 / Accepted: 8 March 2024 / Published: 14 March 2024(This article belongs to the Special Issue Advances in Metal Casting Technology) 1. Introduction The present text is the second part of an editorial written for a

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Figure 1. Schematic diagram of a typical HPDC process.

Development of High Performance Copper AlloyChill Vent for High Pressure Die Casting

Duoc T Phan, Syed H Masood*, Syed H Riza, and Harsh ModiDepartment of Mechanical and Product Design Engineering, Swinburne University of Technology, Hawthorn, Melbourne, Australia*Email: smasood@swin.edu.au Abstract In High Pressure Die Casting (HDPC) process, chill vents are used to allow residual air and gases to exhaust out from the mould cavity. The objective of this

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Figure 1. Illustration of LED lighting application and thermal network model.

Savings in Cooling Energy with a Thermal Management System for LED Lighting in Office Buildings

by Byung-Lip Ahn 1,2,Ji-Woo Park 1,Seunghwan Yoo 1,Jonghun Kim 1,Seung-Bok Leigh 2 andCheol-Yong Jang 1,* Abstract Light-emitting diode (LED) lighting should be considered for lighting efficiency enhancement, however, waste heat from light-emitting diode (LED) lighting increases the internal cooling load during the summer season. In order to solve this problem we propose a thermal management system for light-emitting diode (LED) lighting with a

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Fig. 4. Pictorial views of simple, circular pin-fin and copper foam-based heat sinks.

Experimental investigation for thermal performance enhancement of various heat sinks using Al2O3 NePCM for cooling of electronic devices

Imran Zahid ab, M. Farhan a, M. Farooq a, M. Asim a, M. Imran c Abstract Electronic devices are being used extensively for different applications, where the thermal management of these devices is still a critical challenge due to rapid miniaturization, high heat flux and constantly rising temperature. Phase change materials (PCMs) based thermal management is adopted, but the low thermal conductivity limits their use in temperature-controlled electronic devices. Nano-enhanced phase change materials

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7. Appearance of texturized surfaces: (a) stochastic and (b) regular arrangemen

Research on the Tribological Properties of a New Generation ofMulti-Layer Nanostructured PVD Coatings for Increasing theTechnological Lifetime of Moulds

Janette Brezinová1,* , Miroslav Džupon 2, Viktor Puchý2, Jakub Brezina 3, Pavlo Maruschak 4,Anna Guzanová3, Lýdia Sobotová5 and Miroslav Badida 5 Abstract This paper presents the results of research focused on increasing the lifespan of HPDCmoulds for casting aluminium alloys by applying duplex PVD coatings in combination with lasertexturing the base material before the coatings’

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Figure 1. Diagrammatic representation of a squirrel-cage induction motor.

Thermal Analysis and Cooling Strategies of High-Efficiency Three-Phase Squirrel-Cage Induction Motors—A Review

by Yashwanth Reddy Konda 1, Vamsi Krishna Ponnaganti 2, Peram Venkata Sivarami Reddy 3,R. Raja Singh 4, Paolo Mercorelli 5,*, Edison Gundabattini 6,* and Darius Gnanaraj Solomon 7 Abstract In recent times, there has been an increased demand for electric vehicles. In this context, the energy management of the electric motor, which are an important constituent of electric vehicles, plays a pivotal role. A

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Figure 1. Extrusion limits

High Density Die Casting (HDDC): new frontiers in the manufacturing of heat sinks

Andrea Sce1 and Lorenzo Caporale1 Published under licence by IOP Publishing LtdJournal of Physics: Conference Series, Volume 525, Eurotherm Seminar 102: Thermal Management of Electronic Systems 18–20 June 2014, Limerick, Ireland Citation Andrea Sce and Lorenzo Caporale 2014 J. Phys.: Conf. Ser. 525 012020DOI 10.1088/1742-6596/525/1/012020 Abstract Finding a good solution for thermal management problems is every day more complex. due to the power density

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Induction motors with copper rotor: a new opportunity for increasing motor efficiency

Induction motors with copper rotor: a new opportunity for increasing motor efficiency

ABSTRACT The copper rotor induction motor (CURIM) was recently introduced because it has lower rotor fusion losses than the aluminum rotor (ALRIM). Furthermore, with CURIM, it is easier to reach IE4 and IE5 efficiency levels. The CURIM is advantageous for compact motors, escalators, and electric vehicle applications. However, CURIMs present slip, power factor, temperature increase,

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Fig.No. 2 Copper Die Cast Rotor

STUDY OF OPTIMIZATION OF SQUIRREL CAGE INDUCTION MOTOR USING DCR TECHNIQUE

ABSTRACTInduction Motors are most widely used Electric Motors best suitable for industrial applications as well as lowpower applications in daily used domestic equipment’s because of their unique advantage compared to other types of motors like DC and Synchronous Motors. Electric Motors do not transfer 100% of the input Electrical power into kinetic Mechanical Power. Some

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Figure 1. NPV and Payback period function as the initial incremental cost for 4,000 h of operation

Induction motors with copper rotor: a new opportunity forincreasing motor efficiency

Percy R. Viego Felipe1, Vladimir Sousa Santos2, Julio R. Gómez Sarduy1, José P. Monteagudo Yanes1,Enrique Ciro Quispe31Center of Energy and Environmental Studies, Faculty of Engineering, Universidad de Cienfuegos, Cienfuegos, Cuba2Energy Department, Universidad de la Costa, Barranquilla, Colombia3Grupo de Investigación en Energías, Energy and Mechanical Department, Universidad Autónoma de Occidente, Cali, Colombia ABSTRACT The copper rotor

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