Determine the service and backwash rates, Electrical Engineering

Determine the Service and Backwash Rates

The system on site is a pressure sand filter, with a service curve. The filter is backwashed using the feed pump, at a higher flow rate, shown as backwash curve.

812_Determine the Service and Backwash Rates.png

Service duty point: 3 m3/h

Backwash duty point: 9 m3/h

Part (a)

What is the speed of the pump to achieve the service and backwash flow rates ?

Part (b)

What would be the best way to control the speed of the pump ? Why ?

Part (C)

The pump is set up as a fixed speed constant pressure system (pump runs once system pressure reaches 550 kPa, turns off, when pressure drops to 450 kPa plant re-starts) to maintain a system pressure of 500 kPa at the discharge of the pump. What would be the service and backwash rates from the pump ?

Posted Date: 2/16/2013 3:17:23 AM | Location : United States







Related Discussions:- Determine the service and backwash rates, Assignment Help, Ask Question on Determine the service and backwash rates, Get Answer, Expert's Help, Determine the service and backwash rates Discussions

Write discussion on Determine the service and backwash rates
Your posts are moderated
Related Questions
why is a delay line used in the vertical selection of oscilloscope?

Q. Explain Global Positioning Systems? Modern communication systems abound in practice: cellular phones, computer networks, television satellites, and optical links for telepho

Explain in detail the operation of 8255 in mode1 taking suitable example. In mode1, Ports A and B are programmed as input or output ports and Port C is used for handshaking.

Q. Consider the dual-slope A/D converter of Figure. (a) Calculate the total charge on the integrator due to the input voltage Vin during the signal integration time T. (b) Ob

Write a short note on dispersion shifted and dispersion flatted fibers? The dispersion features of a fiber is display below: The overall dispersion is the sum of materi

Q. Given the block diagram and the truth table of a demultiplexer, as shown in Figure, obtain its implementation.

Q. Consider the three BCD numbers listed below. 0001 1000 0101 1000 0010 0001 0011 1000 0100 0011 0101 0101 a) Convert these numbers to their decimal values. b) Conv

how can we increase insulation resistance of sheet

Design a MOD-6 synchronous counter using J-K Flip-Flops.

Q. What is a differentiator circuit? By introducing electrical reactance into the feedback loops of op-amp amplifier circuits, we can cause the output to respond to changes in