earticle

영어

Underground parking lots in apartment houses are becoming larger, more complex, and the risk of fires such as electric vehicle fires is increasing day by day. The following conclusions were reached by conducting an experiment to suggest an efficient smoke emission method that can be applied to apartments immediately and a smoke removal facility that needs to be applied to apartments to be built in the future. 1) The optimal smoke transfer method using a mobile blower to secure the visibility of the fire brigade in the early stages of the fire in an underground parking lot was found to be a mixed method (PPV+NPV) that combines positive and negative pressure smoke. 2) In the case of the mixed method (PPV+NPV), it may be difficult to install the blower at a height of 2m depending on the environment of the entrance and the conditions of each fire station. 3) The PPV method, which is most commonly used in the field, pushes air from the entrance of the underground parking lot to the blower or smoke exhaust lane. If there is no outlet nearby, smoke disturbance and eddy currents occur, which worsens the field of view, and smoke spreads to other areas, causing another damage. 4) It would be effective to apply the 27CMH/㎡ standard of the performance-oriented design evaluation and operation guideline such as fire fighting facilities.