I am a ChemE and am working on energy efficiency in pumping. 90% of the pumps out there are centrifugal with 60-70% best efficiency at one point on the pressure-flow curve. The design size is always larger than the operating size, so they actually operate at 50-60% efficiency or so. Worse, we...
Is there any way to configure a chiller system to get free refrigeration in the winter? I need to cool water from 50F to 40F. In theory, in cold weather (<30F) I can; A. run the water through an air-cooled exchanger or B. pipe an evaporative chiller to a condenser coil exposed to cold air...
What should piping materials of construction be for RO, DI and distilled water? Roughly at what point (or points), in terms of TDS/mmhos, does the corrosivity of high purity water become a problem?
Thanks,
Bill
