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How to model CAV system with VFD in E+ without any zone control

Dear All,

I am trying to model CAV system which is serving a large volume of space and equipped with VFD control. As far as i know, we can't model this setup directly in the E+. However there could be an alternative approach for this. I could see fan:systemmodel object in V8.8 which talks about the Speed Flow Fraction, Speed Electric Power Fraction way of modeling fan performance. Has anyone had any experience using this object. Or what do folks use for such system in E+ models.

Thanks for any pointers,

How to model CAV system with VFD in E+ without any zone control

Dear All,

I am trying to model CAV system which is serving a large volume of space and equipped with VFD control. As far as i know, we can't model this setup directly in the E+. However there could be an alternative approach for this. I could see fan:systemmodel object in V8.8 which talks about the Speed Flow Fraction, Speed Electric Power Fraction way of modeling fan performance. Has anyone had any experience using this object. Or what do folks use for such system in E+ models.

Thanks for any pointers,

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