Abstract

Smoke and heat exhaust ventilation systems create a smoke free layer above a floor by removing smoke. They can, therefore, improve conditions to allow the safe escape and rescue of people, to protect property and to permit a fire to be fought while still in its early stages. Ventilation systems for smoke removal also serve simultaneously for heat exhaust and can exhaust hot gases released by a fire, thus controlling the temperature in the room affected by the fire. The paper reviews international and domestic standards as well as domestic regulations that are relevant for the fire protection of underground car parks. Recommendations and calculation methods for dimensioning of mechanical smoke and heat exhaust ventilation systems in case of fire in underground car parks are discussed in the paper. Calculation examples of dimensioning of this systems for different case studies are also included in the paper.

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