Experimental determination of BLEVE-risk near very large fires in a tunnel with a s prinkler/water mist system

Published:  14 April, 2010

The effectiveness of a sprinkler/water mist system to prevent a BLEVE in a LPG tank truck in a tunnel fire was verified in a series of large scale fire tests in the Runehamar test tunnel in Norway. A full-size LPG tank, partially filled with water, was placed in the tunnel and subjected to a series of large cargo and pool-fires located closely upstream from the tank. The thermal conditions around the tank and the thermal response of both the tank's surface and its bulk were measured and the risk of a BLEVE was predicted from these measurements.

Only when the limits of the water mist system were sought, by purposely delaying the activation time with about 7 minutes, there proved to be a serious risk of a BLEVE. This occurred after 400s in one fire test with a cargo consisting of 720 stacked pallets. In all other tests the fire was extinguished or controlled quickly enough to prevent a BLEVE. Quick detection and extinguishment of the fire was shown to be especially important with a pool fire, due to the fast increase of the temperature around the tank to about 1000oC.

  • Operation Florian

Sign up: eMagazine & eNewsletter

The latest issues in your inbox.

Company Profiles

Waterax - We move water

Trusted by wildland firefighters around the world, WATERAX sets the industry standard by developing innovative, portable fire pumps and water-handling equipment designed to withstand demanding applications and rugged environments.

Big Water Flow for Industrial and Municipal Firefighting Applications

Protecting the lives of the public and firefighters while limiting the structural damage caused in large scale fires is our primary mission

We are committed to improving lives and doing business in the right way

We have a unique mix of capability and culture that we refer to as 3M Science and we strive to develop products that improve people’s daily lives in a multitude of ways.

HazSim - Bringing situational HazMat training to life

HazSim, LLC provides innovative simulation training to ensure your team works safely and effectively. HazSim Pro simulation equipment is in use by hundreds of fire departments, training schools, industrial fire teams, and private trainers across the US, Canada and further afield as well as the US Army.

The ultimate in innovation, quality and service

For 60 years Lehavot has been delivering the world’s most advanced fire detection and suppression automatic systems

Advancing rescue technology

The specialist supplier of quality PPE and Rescue Equipment to Emergency Services.

Revolutionizing fire fighting foam technology

The one-stop resource for fire fighting foam concentrates and custom-designed foam suppression systems hardware.

Trust the best, let us be your foam solution

AUXQUIMIA is a Spanish company whose main activity is the design, manufacture and commercialization of firefighting foam concentrates.

Williams Fire & Hazard Control offers a full line of specialized fire response equipment for oil and gas platforms

From storage tanks and pipeline emergencies to offshore platforms and vessels at sea, Williams' response personnel and specialized equipment quickly address adverse fire emergencies.

Foam fights fire

Europe’s foremost fire fighting foam manufacturer has been developing and producing foams since the 1920s.

The leader in truck-mounted hydraulic platforms

Our mission is to provide the best and the safest solution to professionals that work at height.

If you want quality, you want Zico

Since its inception Ziamatic Corp has provided the men and women of the fire service with products designed to make their jobs safer and easier.

The independent alternative

Dafo Fomtec AB is a privately owned company with head office in Stockholm Sweden and manufacturing in Helsingborg in the south of Sweden.

Calendar