# Re: [EnergyPlus_Support] airflow network with HorizontallyPivoted

Hi Juan.

Height factor, width factor and start height factor do not apply for a LVO pivoted window. You only control the opening angle of the window through the opening factors. These are linearly proportional (opening factor of 1 is equivalent to a 90º opening angle).

The field extra crack lenght defines of the height of the (only) pivoting axis. It is meassured from the bottom of the window. You can't directly especify more pivoted axis in the detailed opening. What you can do is create 7 windows for each one of the pivoted axis and apply to each one a multizone:surface and the detailed opening specified for just one glass.

Both the Opening Factor in the surface object and in the detailed opening object control the actuall opening area relative to the geometric area of the window. The difference is that the one in the surface will always multiply with the window net area while the ones in the detailed opening are dependent of the opening factor for that timestep (either controled by a schedule or by temperature or enthalpy). I guess this is only there to provide more flexibility on controlling the window opening areas without having to change any geometry in the model.

Pedro.

On 11-05-2011 6:22, Juan Pablo Cartagena Portillo wrote:

 Hello, Greetings. These are the questions I have: How defined fields  Height Factor for Opening Factor, Width Factor for Opening Factor, Start Height Factor for Opening Factor for a rectangular window horizontally-pivoted? If I want to simulate a jalousie window containing 7 glass, which measures each glass is 0.10x0.50 m (height, width), and therefore there is a pivot for each glass. the distance from the bottom of the window to the privote is 0.05 m, as I can define the other pivot in the window?. In the field Extra Crack Length or Height of Axis Pivoting allows me to create an extra pivot, but do not understand if this pivot is measured from the bottom of the window or glass top side above. however, regardless of whatever, to put a value in this field would generate all the pivot < span title="Haz clic para obtener otras posibles traducciones" class="yiv561828118hps">according to the height of the window. What is the relationship with Factor Opening fields (object AirflowNetwork: MultiZone: Component: DetailedOpening) with the field Window / Door Opening Factor, or Crack Factor (object AirflowNetwork: Multizone: Surface)?

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