The energy efficiency of heat exchangers, convectors and cooling elements can be improved even further. Open-pore structures made of metal foam, which have good thermal conductivity and a large surface, offer interesting possibilities here. The BINE Projektinfo brochure entitled "Metal foam – a material for heat engineering" (11/2016) presents the development work for these materials. The aim is to optimise the manufacturing process, reduce costs and test the materials on test rigs. The material properties of the different alloys will be recorded in a database.
Open-pore metal foams offer greater heat transfer
A liquid or gas circulates within many heating technology components to provide a heat transfer medium. In contrast to the meandering tube bundles or fins previously usually deployed in the components, open-pore metal foams have the advantage that they have a greater surface. This facilitates the transfer of large amounts of heat.
The metal foams can be made with cell widths between 0.3 and 5 mm. The production begins with open-cell polyurethane foams. These are cast in a liquid ceramic suspension. The plastic inside is then burnt by heating. The resulting mould can be filled with various metal alloys using precision casting or powder metallurgical processes.
Open-pore metal foams can be used, for example, in car radiators, high-performance evaporators and latent heat storage systems. The Fraunhofer Institute for Manufacturing Technology and Advanced Materials in Dresden is carrying out the research in collaboration with industrial partners.
You found all informations about the BINE Projektinfo brochure entitled "Metal foam – a material for heat engineering" here:
Uwe Milles/Birgit Schneider
About BINE Information Service
Energy research for practical applications
The BINE Information Service reports on energy research topics, such as new materials, systems and components, as well as innovative concepts and methods. The knowledge gained is incorporated into the implementation of new technologies in practice, because first-rate information provides a basis for pioneering decisions, whether in the planning of energy-optimised buildings, increasing the efficiency of industrial processes, or integrating renewable energy sources into existing systems.
About FIZ Karlsruhe
FIZ Karlsruhe – Leibniz Institute for Information Infrastructure is a not-for-profit organization with the public mission to make sci-tech information from all over the world publicly available and to provide related services in order to support the national and international transfer of knowledge and the promotion of innovation.
Our business areas:
• STN International – the world’s leading online service for research and patent information in science and technology
• KnowEsis – innovative eScience solutions to support the process of research in all its stages, and throughout all scientific disciplines
• Databases and Information Services – Databases and science portals in mathematics, computer science, crystallography, chemistry, and energy technology
FIZ Karlsruhe is a member of the Leibniz Association (WGL) which consists of 87 German research and infrastructure institutions.
http://www.bine.info/en - BINE Informationsdienst
Rüdiger Mack | idw - Informationsdienst Wissenschaft
New concept for structural colors
18.05.2018 | Technische Universität Hamburg-Harburg
Saarbrücken mathematicians study the cooling of heavy plate from Dillingen
17.05.2018 | Universität des Saarlandes
So-called quantum many-body scars allow quantum systems to stay out of equilibrium much longer, explaining experiment | Study published in Nature Physics
Recently, researchers from Harvard and MIT succeeded in trapping a record 53 atoms and individually controlling their quantum state, realizing what is called a...
The historic first detection of gravitational waves from colliding black holes far outside our galaxy opened a new window to understanding the universe. A...
A team led by Austrian experimental physicist Rainer Blatt has succeeded in characterizing the quantum entanglement of two spatially separated atoms by observing their light emission. This fundamental demonstration could lead to the development of highly sensitive optical gradiometers for the precise measurement of the gravitational field or the earth's magnetic field.
The age of quantum technology has long been heralded. Decades of research into the quantum world have led to the development of methods that make it possible...
Cardiovascular tissue engineering aims to treat heart disease with prostheses that grow and regenerate. Now, researchers from the University of Zurich, the Technical University Eindhoven and the Charité Berlin have successfully implanted regenerative heart valves, designed with the aid of computer simulations, into sheep for the first time.
Producing living tissue or organs based on human cells is one of the main research fields in regenerative medicine. Tissue engineering, which involves growing...
A team of scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg investigated optically-induced superconductivity in the alkali-doped fulleride K3C60under high external pressures. This study allowed, on one hand, to uniquely assess the nature of the transient state as a superconducting phase. In addition, it unveiled the possibility to induce superconductivity in K3C60 at temperatures far above the -170 degrees Celsius hypothesized previously, and rather all the way to room temperature. The paper by Cantaluppi et al has been published in Nature Physics.
Unlike ordinary metals, superconductors have the unique capability of transporting electrical currents without any loss. Nowadays, their technological...
02.05.2018 | Event News
13.04.2018 | Event News
12.04.2018 | Event News
18.05.2018 | Power and Electrical Engineering
18.05.2018 | Information Technology
18.05.2018 | Information Technology