CONTAM simulation lab

I would like to briefly introduce the 'Neutral zone position control type Pressure differential system(PDS)', which has the same functions as the existing fan air supply/exhaust pressure differential systems, but can be implemented at low cost. Please take a look at the information below and, if possible, I would like to hear your opinion. ​ 1. Overview This smoke control system is a neutral zone position control type smoke control system that can effectively prevent the spread of smoke to other floors due to the stack effect at low cost without applying the air supply and exhaust by fans. As of October 12, 2023, the application has been filed in Korea and the patent registration examination is in progress. ​ 2. Problems with existing smoke control systems Most conventional PDS use a smoke control method by supplying pressurization of outdoor air or depressurizing the discharge of smoke using fans. The investment cost per square meter for this PDS through fan supply/exhaust is

A case where a fire on a high floor resulted in casualties on a lower floor? Q (Research Institute): Are there any cases around the world where smoke from a fire on the upper floor of a high-rise building spread to the lower floor? A(chatGPT): There have been several cases around the world where smoke spread from upper floors of high-rise buildings to lower floors. These incidents provide important lessons in many areas, including building design, fire safety standards, and evacuation planning. For example, the 2017 Grenfell Tower fire in London is one such example, where the fire quickly spread throughout the building, causing many casualties. This incident highlighted the safety of building materials, the importance of fire response systems, and the importance of evacuation plans in high-rise buildings. Another example is the 2010 Shanghai apartment fire in Shanghai. The fire broke out during construction, and flames and smoke quickly spread to the upper floors of the building, causi

 I conducted a simulation of applying 'Neutral zone position control type pressure differential system' to a tall building in South Korea. 1. Building overview It is a tall building consisting of parking lots (B7F~B1F), commercial facilities(1F~2F), and apartment complexes (3F~43F, 6 households/floor), and has a structure in which one corridor in the center is connected to the 9 vertical shafts. The parking lots on each floor are connected to each other through vehicle ramps. Figure 1 - Basement floor Figure 2 - 3rd floor 2. Overview of 'Neutral zone position control type pressure differential system'    - Installation of 9 dampers connecting each of the 9 vertical shafts and the parking lot on the first basement floor (See Figure 1).    - Installation of 9 dampers connecting each of the 9 vertical shafts and outdoor air on the rooftop. 3. Scenario conditions    - Scenario common conditions (cold weather, dawn): outside temperature -10.4℃, atmospheric pressure 100,499 P