I have what I imagine is a straightforward question for someone who's done any serious amount of pipe design or has reference materials handy. Alas, not me right now.
We're pumping treated wastewater from a tank to a drain with a pump on a VFD. Depending on operation, there's anywhere from 20...
We've got a 30 foot tall tank, full of water. We have a positive displacement, dual axle lobe blower pumping air into the tank. The air supply pipe runs from the blower up over the tank wall, then to an air header at the bottom of the tank. The check valve supplied by the blower manufacturer...
Our company designs small wastewater treatment plants. Just a few technical people, but we also work with contractors and vendors, sharing drawings including P&IDs. A vendor is pushing us to use ISA standards in our P&IDs, but our controls engineer is also in charge of training and oversight...
We're trying to squeeze some electricity out of our oversized pumps, but they already have VFDs. Typically they run no higher than 75%. I heard you can improve efficiency by making sure the impellers are maximum size. Is that so? Any other improvements available to a pump on a VFD already...
