Michael Weber Posted April 2 Report Share Posted April 2 Is there a way to input actual fan pressures into Ventsim? I have a fan running at 4.6 in WG where the model is showing ~6in W.G. Would I have to play with my resistances in order to have the fan running closer to actual? Quote Link to comment Share on other sites More sharing options...
Martin Griffith Posted April 3 Report Share Posted April 3 Hi Michael, Firstly you should thoroughly check over your fan configuration and be confident it is modelled correctly. Do you have a measured flow rate as well? Is this measured duty point on the fan curve? Once you are confident of the fan set up, then the pressure difference would suggest that you are overshooting the network resistance of your mine. So you would have to investigate the model and try to determine where it might be that too much resistance is specified; this could be coming from e.g. airways sizes, friction factors, shock factors, regulator resistances.... A good place to start is the Audit Tool, which you can find in the Tools menu. Open this and it will run you through a few things to check in your model. It has a button which colours the model by an appropriate colour to investigate the question that each page asks. I would go through that first. Let us know how you go. Quote Link to comment Share on other sites More sharing options...
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