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  1. blackarrow90

    Design of the ducts and outlet surfaces

    Hello I have a question related to the dimensioning of the ducts and outlet surfaces in case of fire. I am not an HVAC but a fire safety engineer and would like to understand the background on how the cross-section of ducts is designed. Basically, there is a vertical shaft in the building...
  2. blackarrow90

    NFPA 92 and building with small atrium openings

    Hello Currently, I am working on finding a solution for smoke extraction in an atrium building. The building has 5 floors with 10.000 sqft each. According to the NFPA 92, this is a type of spill plume, since the fire would start on one of the floors and spill to the open space in the middle...

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