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Hi, I want to model an atrium for a 4 storey building. The atrium is located in the centre of the building and in each floor there are rooms and corridors. I 've read in other threads that good practice is to use the ZONECROSSMIXING object. The examples I found are using this object to "connect" two thermal zones. In my case, since I have a 4-storey building I will have 4 zones to connect and calculate the temperature stratification. Is it better to divide the atrium into 4 virtual horizontal zones and use the ZONECROSSMIXING object or to use the AIRFLOWNETWORK:MULTIZONE:COMPONENT:HORIZONTALOPENING ? Which of these two objects will give a better representation of the temperature stratification. I am aware that the answer to my problem will be to perform CFD but it is not applicable in this case since we want to control to openings of the atrium, at the top floor, based on the temperature. Thank you in advance.

Hi, I want to model an atrium for a 4 storey building. The atrium is located in the centre of the building and in each floor there are rooms and corridors. I 've read in other threads that good practice is to use the ZONECROSSMIXING object. The examples I found are using this object to "connect" two thermal zones. In my case, since I have a 4-storey building I will have 4 zones to connect and calculate the temperature stratification. Is it better to divide the atrium into 4 virtual horizontal zones and use the ZONECROSSMIXING object or to use the AIRFLOWNETWORK:MULTIZONE:COMPONENT:HORIZONTALOPENING ? Which of these two objects will give a better representation of the temperature stratification. I am aware that the answer to my problem will be to perform CFD but it is not applicable in this case since we want to control to openings of the atrium, at the top floor, based on the temperature. Thank you in advance.

Hi, I want to model an atrium for a 4 storey building. The atrium is located in the centre of the building and in each floor there are rooms and corridors. I 've read in other threads that good practice is to use the ZONECROSSMIXING object. The examples I found are using this object to "connect" two thermal zones. In my case, since I have a 4-storey building I will have 4 zones to connect and calculate the temperature stratification. Is it better to divide the atrium into 4 virtual horizontal zones and use the ZONECROSSMIXING object or to use the AIRFLOWNETWORK:MULTIZONE:COMPONENT:HORIZONTALOPENING ? Which of these two objects will give a better representation of the temperature stratification. I am aware that the answer to my problem will be to perform CFD but it is not applicable in this case since we want to control to openings of the atrium, at the top floor, based on the temperature. Thank you in advance.