The system is especially suitable for use in computer centers that store sensitive data. That’s because loud noise can cause hard disk drives to fail. However, the noise created by the Sinorix Silent Nozzle remains below the level that would endanger hard disk drives.
As is the case in many industrial facilities and archives, fires at computer centers are generally not extinguished with water but with gas. If a fire breaks out, the extinguishing systems flood the room with natural gases such as argon, nitrogen, or carbon dioxide within seconds, displacing oxygen in the process. Alternatively, chemical extinguishing agents can be used. These extinguish fires by extracting heat (energy) from the flames. The discharge of gas by conventional nozzle systems is very loud and can reach noise levels of 130 decibels or more, which is equivalent to a fighter jet taking off. In rare cases, computer center operators have noticed that such extinguishing systems have caused hard disk drives to fail temporarily. Studies have confirmed that this failure was the result of the hard disks’ sensitivity to noise.
The new nozzle from Siemens Building Technologies is designed to keep the noise level below 100 decibels, as this comparatively low noise level doesn’t damage hard disks. The nozzle also makes it possible for the operator to choose the direction in which the gas will be discharged so that the sound waves will have a minimal impact on the hard disks.
The nozzle can use the natural gases nitrogen or argon, and a similar nozzle concept is currently being developed for chemical extinguishing agents. The flooding times are identical to those for conventional nozzles. The new nozzle is fully compatible with the Sinorix gas extinguishing system and can also be retrofitted into existing facilities.
Dr. Norbert Aschenbrenner | Siemens InnovationNews
Energy hybrid: Battery meets super capacitor
01.12.2016 | Technische Universität Graz
Tailor-Made Membranes for the Environment
30.11.2016 | Forschungszentrum Jülich
A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.
Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...
In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.
“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...
The Max Planck Institute for Physics (MPP) is opening up a new research field. A workshop from November 21 - 22, 2016 will mark the start of activities for an innovative axion experiment. Axions are still only purely hypothetical particles. Their detection could solve two fundamental problems in particle physics: What dark matter consists of and why it has not yet been possible to directly observe a CP violation for the strong interaction.
The “MADMAX” project is the MPP’s commitment to axion research. Axions are so far only a theoretical prediction and are difficult to detect: on the one hand,...
Broadband rotational spectroscopy unravels structural reshaping of isolated molecules in the gas phase to accommodate water
In two recent publications in the Journal of Chemical Physics and in the Journal of Physical Chemistry Letters, researchers around Melanie Schnell from the Max...
The efficiency of power electronic systems is not solely dependent on electrical efficiency but also on weight, for example, in mobile systems. When the weight of relevant components and devices in airplanes, for instance, is reduced, fuel savings can be achieved and correspondingly greenhouse gas emissions decreased. New materials and components based on gallium nitride (GaN) can help to reduce weight and increase the efficiency. With these new materials, power electronic switches can be operated at higher switching frequency, resulting in higher power density and lower material costs.
Researchers at the Fraunhofer Institute for Solar Energy Systems ISE together with partners have investigated how these materials can be used to make power...
16.11.2016 | Event News
01.11.2016 | Event News
14.10.2016 | Event News
02.12.2016 | Medical Engineering
02.12.2016 | Agricultural and Forestry Science
02.12.2016 | Physics and Astronomy