Read the technical documentation for the model. It explains exactly how that model calculates the power consumption from the given parameters and inputs. In the case of the standard variable speed fan, the pressure drop is used to set the exiting air side conditions and should also be taken into account in the given power vs flow parameters. If you change the pressure drop (added resistance for example) you'll need to re-calculate the flow vs power relationship - and may need to change the rated flow and power parameters as well.
Jeff
Sent from my iPhone
Sent from my iPhone
On Jan 22, 2017, at 5:33 AM, Amirreza Heidary via TRNSYS-users <trnsys-users@lists.onebuilding.org> wrote:
Why changing the "air-side pressure increase" of a variable speed fan does not have any effect of the fan pressure increse?--------------------------------------------------------------------------------------------------------------------------------------------------amirrezaheidarymaster student of energy systems EngineeringSharif university of technologyTehran-IranE-mail address:P Save a tree... Please don't print this E-mail unless you really need to.Sent with Mailtrack
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