tsbi5 Natural Ventilation options

The tab Natural Ventilation is reserved for future use in conjunction with multi zone natural ventilation simulations.

Reset

• By pressing the Reset-button, data on the actual tab returns to those standard values that are coded into the program.

Geometry

• Max Ceiling Slope: Maximum slope on internal ceiling in order to be able to used the model. (See theory on its way!)

• Max Ceiling Distance: Maximum distance from upper edge of opening (Opening and WinDoor) to internal face of ceiling in order to be able to used the model. (See theory on its way!)

• Min Opening Fraction: Give the minimum size of an opening in a surface compared to the area of the surface in order to ignore the surface when making SuperFaces. (See theory on its way!) Should hopefully disappear!!

• Min Inlet Velocity: Minimum air velocity through openings in order to be able to used the model for night cooling.

Convective Heat Transfer Model

• ka value: The Ka value for openings (Danvak Basic-book, chapter 7).

• Inlet Air Angle: Spread angle of the air fume.

• combo-box to come

• combo-box to come

Solve Pressure Equation - describes the criteria for convergence in the multi zone model.

• MaxDif: A solution is assumed to be found if the pressure difference between two iterations is less than MaxDif.

• Max Iterations: A maximum of Max Iterations will be made.

Mzm Heat Balance - describes the criteria for convergence between the multi zone model and the usual thermal simulation.

• Additional opening reg.:

• TempDif: A solution is assumed to be found if the temperature difference between two iterations is less than TempDif.

• Max Iterations: A maximum of Max Iterations will be made.