Hallo everyone, I’m having a problem with the simulation of my 45-zone-model – at timestep 8,75 (0,25 h steps) the error message(s) “MULTIZONE BUILDING - SHADING RATIO OF A WINDOW IS LARGER THAN 1 OR LESS THAN 0” appears. For all my windows I have an external shading which is an input from dck. But I don’t have a separate equation per window. I simplified the orientations to N-E-S-W have these orientations for each zone à means 4x45=180 shading equations. I checked the equations and the printed values – are correct – and also set it to constant 0 – still the error messages. In an existing conversation from the archieve (“2nd error generating shading/insolation matrix -> too many shaders on projection plane”) the problem was solved by adding MIN and MAX function to the shading equations – with this addition also the iterations in-between, not just the last iteration, have to be between 0 and 1. But I tried it and it didn’t help. In the same conversation a previous error was solved by reducing the surface numbers, because the surface numbers were higher than 999 à could this be the problem? I have a quite big building with almost 1700 surfaces, especially a lot of single windows. I could simplify the windows and combine them per wall-surface to one big window, but I want to check your expertise first. Kind regards, Manfred Schindler |