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Hi all, I am trying to do some modelling for the natural ventilation using EnergyPlus airflow network, but I am stuck in the airflow network: Multizone; component; detailed opening. The windows are all the same, awnings (top hinged). The maximum openness of windows is 45 degrees. I need help to understand 'the height, width, and start height factor for opening factor 1, and factor 2. I tried many options, but I had severe errors in assigning windows to each surface. The inputs I used are Opening-factor 0, Discharge-coefficient-for-opening-factor-1 0.001, width-factor-for-opening-factor-1 0, height-factor-for-opening-factor-1 0, and start-height-factor-for-opening-factor-1 0. opening-factor-2 1, discharge-coefficient-for-opening-factor-2 0.5, width-factor-for-opening-factor-2 0.50, height-factor-for-opening-factor-2 0.5, and start-factor-for-opening-factor 2 0. Thanks for your help in advance.

Hi all, I am trying to do some modelling for the natural ventilation using EnergyPlus airflow network, but I am stuck in the airflow network: Multizone; component; detailed opening. The windows are all the same, awnings (top hinged). The maximum openness of windows is 45 degrees. I need help to understand 'the height, width, and start height factor for opening factor 1, and factor 2. I tried many options, but I had severe errors in assigning windows to each surface. The inputs I used are Opening-factor 0, Discharge-coefficient-for-opening-factor-1 0.001, width-factor-for-opening-factor-1 0, height-factor-for-opening-factor-1 0, and start-height-factor-for-opening-factor-1 0. opening-factor-2 1, discharge-coefficient-for-opening-factor-2 0.5, width-factor-for-opening-factor-2 0.50, height-factor-for-opening-factor-2 0.5, and start-factor-for-opening-factor 2 0. Thanks for your help in advance.