Silent nozzle extinguisher does not harm hard disks

Sep 26, 2011
The Siemens Building Technologies Division has developed the Sinorix Silent Nozzle to avoid potential damage to hard disk drives when using a gas extinguishing system to extinguish a fire. The Sinorix Silent Nozzle is not only comparatively quiet, it also ensures fast and reliable extinguishing in data centers.

Siemens has developed a very quiet nozzle for gas extinguishing systems. 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 . 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 systems is very loud and can reach 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 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.

Explore further: 'Smart material' chin strap harvests energy from chewing

add to favorites email to friend print save as pdf

Related Stories

Water mist puts out fires at low pressure

Aug 23, 2011

With a new water mist system, fires can be extinguished even from a distance of eight meters. Sinorix H2O Jet is meant for industrial environments, including turbines, painting lines, or production equipment. ...

NRL researchers study ways to reduce jet aircraft noise

Feb 15, 2011

Advanced military jet aircraft have engines that provide the needed speed and maneuverability. However, with this greater power there is significant noise during takeoff and landing. The noise can impact the ...

Samsung Launches SpinPoint S166 HDD Series

Apr 04, 2007

Samsung Electronics Co., Ltd., a worldwide leader in digital consumer electronics and information technology, today announced its new SpinPoint S166 Series of ultra silent and high-speed hard disk drives. The ...

SanDisk Launches 2.5-Inch Solid State Drive for Notebooks

Mar 13, 2007

SanDisk today broadened its solid state drive (SSD) product line for the portable computer market with the introduction of a 32-gigabyte, 2.5-inch Serial ATA (SATA) interface model, compatible with most mainstream ...

Recommended for you

Reducing traffic congestion, remotely

12 hours ago

At the Intelligent Transportation Systems World Congress last week, MIT researchers received one of the best-paper awards for a new system, dubbed RoadRunner, that uses GPS-style turn-by-turn directions to ...

How to print your own cell phone microscope for pennies

12 hours ago

At one o'clock in the morning, layers of warm plastic are deposited on the platform of the 3D printer that sits on scientist Rebecca Erikson's desk. A small plastic housing, designed to fit over the end of ...

User comments : 0