Many sensitive heating processes run faster, more efficiently and somewhat more stable when infrared emitters with the new QRC reflector are used.
Infrared heat can be more effectively utilised by using reflectors. These save energy and valuable production space. A newly developed quartz reflector sits directly on the emitter and helps to ensure more efficient application of infrared radiation, both under vacuum and in high temperature processes. Copyright Heraeus Noblelight 2007
Comprehensive tests at Heraeus, and also on site at the first users, show that the temperature stability of the new reflector ensures a uniform process. The new QRC (quartz reflective coating) reflector consists of high purity synthetic quartz material, with which the quartz glass tube is coated.
Heraeus Noblelight is showing infrared emitters with the new integral reflector at the “22nd European Photovoltaic Solar Energy Conference and Exhibition” in Mailand at the beginning of September.
Solar cells aim to make optimum use of solar energy. An anti-reflective coating provides for a significantly better absorption performance for solar cells. This coating is carried out in vacuum and at high temperatures.
It has been shown that such high temperature processes can be carried out in a significantly more stable fashion using infrared emitters featuring the new QRC reflectors, as process parameters such as temperature or the heating time can be better maintained. This increases the energy efficiency of a system.
Unlike other quartz reflectors, the QRC reflector is not an externally applied quartz shell but is a coating of synthetic quartz glass applied directly to the infrared emitter. As a result, the emitter is very compact and requires very little working space. With the QRC reflector, Heraeus Noblelight has succeeded in creating, for the first time, a reflector for vacuum applications which sits directly on the emitter.
The synthetic quartz material is of high purity and has a reflectivity which is not quite as effective as a gold coating but is better than a stainless steel reflector. The quartz reflector has very good heat resistance up to around 1000ºC and is also resistant to acids, lyes and other aggressive substances. Consequently, emitters with this reflector can be used even in manufacturing processes where the manufacturing plant requires regular cleaning with corrosive cleaning agents.
Visitors to the Heraeus stand at the PV exhibition in Mailand could see an infrared emitter with the new reflector of opaque quartz glass in operation. A module specially built for the exhibition demonstrated how the reflector allows heat to be focused directly onto the product and gave some indication of how energy can be saved with the improved process.
Infrared emitters are compact and transfer large amounts of energy without the need of a contact medium. This makes thermal processes in vacuum possible and helps in the efficient use of valuable production space. In contrast to metal tube emitters, which conventionally have often been used under vacuum conditions, infrared emitters from Heraeus Noblelight have a higher power density and are significantly more responsive. As a result, heating operations are performed faster and in a more controlled fashion.Heraeus Noblelight GmbH, with its headquarters in Hanau and with subsidiaries in the USA, Great Britain, France, China, Australia and Puerto Rico, is one of the technology- and market-leaders in the production of specialist light sources. In 2006, Heraeus Noblelight had an annual turnover of 88 Million € and employed 651 people worldwide. The organisation develops, manufactures and markets infrared and ultraviolet emitters for applications in industrial manufacture, environmental protection, medicine and cosmetics, research, development and analytical laboratories.
Dr. Marie-Luise Bopp | Heraeus Noblelight GmbH
Electromagnetic water cloak eliminates drag and wake
12.12.2017 | Duke University
Two holograms in one surface
12.12.2017 | California Institute of Technology
MPQ scientists achieve long storage times for photonic quantum bits which break the lower bound for direct teleportation in a global quantum network.
Concerning the development of quantum memories for the realization of global quantum networks, scientists of the Quantum Dynamics Division led by Professor...
Researchers have developed a water cloaking concept based on electromagnetic forces that could eliminate an object's wake, greatly reducing its drag while...
Tiny pores at a cell's entryway act as miniature bouncers, letting in some electrically charged atoms--ions--but blocking others. Operating as exquisitely sensitive filters, these "ion channels" play a critical role in biological functions such as muscle contraction and the firing of brain cells.
To rapidly transport the right ions through the cell membrane, the tiny channels rely on a complex interplay between the ions and surrounding molecules,...
The miniaturization of the current technology of storage media is hindered by fundamental limits of quantum mechanics. A new approach consists in using so-called spin-crossover molecules as the smallest possible storage unit. Similar to normal hard drives, these special molecules can save information via their magnetic state. A research team from Kiel University has now managed to successfully place a new class of spin-crossover molecules onto a surface and to improve the molecule’s storage capacity. The storage density of conventional hard drives could therefore theoretically be increased by more than one hundred fold. The study has been published in the scientific journal Nano Letters.
Over the past few years, the building blocks of storage media have gotten ever smaller. But further miniaturization of the current technology is hindered by...
With innovative experiments, researchers at the Helmholtz-Zentrums Geesthacht and the Technical University Hamburg unravel why tiny metallic structures are extremely strong
Light-weight and simultaneously strong – porous metallic nanomaterials promise interesting applications as, for instance, for future aeroplanes with enhanced...
11.12.2017 | Event News
08.12.2017 | Event News
07.12.2017 | Event News
13.12.2017 | Health and Medicine
13.12.2017 | Physics and Astronomy
13.12.2017 | Life Sciences