1. A flow rate of 1 kg/s of air at 30 atm and 20?C is to be measured with a venturi and an orifice. Select appropriate size devices and specify suitable pressure instrumentation for each.
2. The flow rate in Prob. 7.30 is to be measured with a sonic nozzle. Calculate the exit diameter of the nozzle.
Prob. 7.30
A flow rate of 1 kg/s of air at 30 atm and 20?C is to be measured with a venturi and an orifice. Select appropriate size devices and specify suitable pressure instrumentation for each.
3. A rotameter is to be used to measure the flow rate of liquid Freon-12 at 20?C. You have at your disposal several specially constructed bobs of varying densities. What density would you select?