Flow measurement in a duct

Hare rama:

Sir,

I'm unable to calculate the exact flow in a duct. I'm getting more flow than designed when I'm measuring. Can you please help in this.

Regards

Krish

 

 

Hello krish, may i know the location you are trying to calcualte the flow (ex: PH downcomer)? What are the exact design conditions (including temp, pressure, density and comp)? Regards