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
Quality Tools for Improvement The environment of the business of power sector has been modified recently largely because of partial deregulation of this sector. The required h

Q. For DSB and conventional AM, obtain expressions for the in-phase and quadrature components x d (t) and x q (t), and envelope and phase v(t) and φ(t).


Factors which affect the inductance of an inductor include:  i)  The number of turns of wire (N) - more turns the higher the inductance ii)  The cross-sectional area of the

Explain electric polarization. Electric polarization : This polarization density is the vector field such expresses the density of permanent or induced electric dipole momen

HOW TO PERFOM AUTO DIALLING USING GSM MODULE

Q. Explain the working of LEDs OPTOELECTRONIC devices either produce light or use light in their operation. The first of these, the light-emitting diode (LED), was developed to

An arrangement of Windows so every window is neatly stacked with only the title bar of every window is showing.

Give the properties and uses of silicon iron alloy and nickel iron alloy. Silicon Iron alloy: Pure iron has low resistivity that results in higher eddy current losses. These

Q. For the CS JFET ampli?er circuit of Figure, R D = 2k and R L = 3k. The JFET with ro = 15 k has a voltage gain A v1 =-4.5 when the entire source resistance is bypassed. Fin