Please attempt question 3C.

Thank you

A centrifugal compressor is being used to provide air to the aeration system at a water treatment plant. The liquid level in the tanks is 5m, and the pressure drop due to flow in the system is given by: Pflow=0.001Q2 where Q is the volumetric air flow rate (in m3h1 ). The maximum flow rate used in the plant is 10,000m3h1. a. Using this information draw the system curve. b. If the desired flow rate is 8000m3h1 what must the discharge pressure of the compressor be? c. The compressor curve can be approximated by the function: Pout=1400000.0003Q2 If no control system is used what will the flow rate in the system be? d. Draw a P\&ID for a feed-back control system for the compressor where the flow is controlled by throttling the outlet. e. If the set-point of the process is 6000m3h1 determine what the discharge pressure of the compressor would be. Explain why throttling the exhaust is not the most energy efficient option and suggest an alternative