SOLIT - SAFETY OF LIFE IN TUNNELS
SOLIT - Safety of Life in Tunnels
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Further Tunnel Research Projects:

FIT - Partner Tunnelanlagen Löschsysteme

UPTUN - Projektpartner Wassernebel Löschanlagen Tunnelanlagen



Fire Scenarios

One of the aims of the SOLIT project is the verification of effectiveness of high pressure water mist systems for tunnels by means of a large full scale fire test program.
Therefore, realistic fire scenarios were developed in close cooperation with the scientific advisory board.
To achieve scientific and repeatable results, real cars or trucks are not used for fire tests, as each individual vehicle would show a different fire development. Instead, well defined standardized fire loads as diesel or wooden EURO pallets are used.

Following fire scenarios are used for the SOLIT test program:

  • Partly covered pool fire

    • This fire scenario was developed by several leading research institutes within the European research program UPTUN and was further refined for the SOLIT tests.
    The used mock up is suitable to study basic effects of fire suppression systems as well as interactions with other safety systems, such as fire detection or ventilation.

    Fire Scenarios
    Partly covered pool fire. In spite of ventilation, back layering of smoke against the direction of the air flow is observed    		 Fire Scenarios
    Smoke development during a 30 MW pool fire


  • Truck mock up with solid combustibles

    • This mock up simulates a fully loaded HGV (heavy goods vehicle). The fire load contains wooden pallets and is fully covered by a commonly used tarpaulin. For the assessment of fire spread, target objects are used to simulate a second truck in a defined distance to the mock up.
    Similar fire loads were already used in past for full scale tests in tunnels without fire suppression systems. Therefore, results of prior research work can also be used for comparison.

    Fire Scenarios
    Mock up of a HGV with target object    		 Fire Scenarios
    Fire development approx.
    3 minutes after ignition

 

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