Why are there fans in tunnels

Fire inside a tunnel can be particularly dangerous. A burning car or truck can lead to searing air temperatures, accumulation of toxic gases and low oxygen levels — all potentially deadly. And the darkness and narrowness of the tunnels can make it difficult for firefighting crews to quickly get to the fire.

Supply fans bring in clear air from the outside, while exhaust fans push dirty air out of the tunnel. This two-lane road tunnel was the first in India and the sixth in the world, with a transverse ventilation system enabled by ABB drives and motors that uses separate air ducts to introduce fresh air inside the tunnel and remove the harmful air.

The ventilation system uses low harmonic VFDs and motors installed at the North Nashri and South Chenani portals for air supply and exhaust. The VFDs are also equipped with inbuilt redundancy to ensure maximum uptime.

The modern design of the tunnel includes a parallel escape tunnel apart from the main tube and special features such as an integrated traffic control system, fire detection and management, and wireless communication.

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The 3. The road tunnel, which opened in , has After the fires in the Mont Blanc, Tauern and Gotthard, in the interim safety regulations have been introduced to protect motorists and emergency services. For example smoke is to be removed quickly The 2. Tunnel No. It was not difficult to reduce the length of the unit body, but because decreasing the unit body length would result in a shorter silencer length, the noise level would increase.

Therefore, we began by reviewing sound absorbing materials and blade shapes. Then, we successfully shortened the unit body while keeping the noise below the reference level and ensuring the specified air flowrate and the strength of the fan unit.

That was a big plus. We also know all about capturing customers' needs, which the Panasonic Group is very good at, and our company is more flexible and agile than other companies. Those are also our company's strengths. We began developing the new jet fan after we received the order. We never ease up on our efforts even after receiving orders," said Mr.

Vehicle exhaust gas is sucked by the exhaust fan and particulates are removed by the electrostatic precipitator. The electrostatic precipitator offers improved energy-saving performance. We appreciate Panasonic's considerations for the reduction of power consumption," said Mr. Since infrastructure is put to the real test after it is placed in service, reliability and durability are very crucial.

Ajihara continues, "Once the new route opens, traffic conditions will change. We look forward to Panasonic's continued proposals on operation improvements in the future. To this comment, Mr. Iwata responded, "The word, 'Engineering,' in our company name denotes our belief that associations with customers continue from beginning to end, including the maintenance in between.

Panasonic continues to support the livelihoods of people although its achievements in this business field are generally invisible to ordinary people. Clean air is blown out of the above-ground exhaust stack into the atmosphere by the large fan. Solutions Wherever You Go. Tweets Follow panasonic. View list. Official Social Media Accounts. The content in this website is accurate at the time of publication but may be subject to change without notice.

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