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Low flow can cause overheating, hydraulic instabilities (suction and discharge recirculation) and mechanical unreliability in centrifugal pumps. To prevent such problems, options include both continuous and automatic (active) low-flow protection systems. Figure 1 shows four major types of configurations that provide recirculation back to an upstream feed vessel. Alternatives include recirculation to the pump suction piping.
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Is there a required minimum pipe size for a shower?
1/2" water lines. Drain line determined by flow rate of showerheads and bodysprays being used. 5.7 gpm or less flow rate would need 1 1/2" drain, which is minimum size allowed.
What is surge limit in cetrifugal compressor?
Surge Limit is the Minimum Flow Point ( in the compressor characteristic curve ) below which the compressor operation become instable. If the flow-rate is reduced, the pressure developed by the compressor decreases. Then, the pressure in the discharge line becomes greater , and the gas flow back into the compressor. As soon as the pressure in the discharge line drops to below that developed by the compressor, the gas again flows in the discharge line. Then, the cycle repeats. The oscillating pressure and flow rate will cause audible vibrations and shocks, and could damage the compressor blades, seals, and other components. Therefore, the compressor requires an antisurge control system to limit the flow rate at a minimum point, safely away from the surge limit.
When the neutral switch is open where do the line current flow to?
There is never a switch installed in a neutral line.
What is the purpose of construction line?
Question answer here...
Flow chart to compute the average of N number?
The flowchart in deriving the sum of two numbers and its average, you may follow the steps provided below:Draw the start symbol then a flow line connecting to item #2Draw the init box for the syntax: set variable_Sum=0, variable_Ave=0, Variable_A=0, Variable_B=0 then a flow line connecting to item #3Draw the first input box and write variable_A then a flow line connecting to item #4Draw the decision box for 'Is variable_A not numeric?'. if yes, draw a flow line connecting to item#3 else draw a flow line connecting to item #5Draw the second input box and write variable_B then a flow line connecting to item #6Draw the decision box for 'Is variable_B not numeric?'. if yes, draw a flow line connecting to item#5 else draw a flow line connecting to item #7Draw the first process box for the syntax: compute variable_Sum=variable_A + variable_B then a flow line connecting to item #8Draw the second process box for the syntax: compute variable_Ave=variable_sum / 2 then a flow line connecting to item #9Draw the output box and write variable_Sum, variable_Ave then a flow line connecting to item #10Draw the end symbol.Where:variable_A contains the first number, variable_B contains the second number, variable_Sum contains the sum of variable_A and variable_B, and variable_Ave contains the average of variable_Sum.The last time I checked the LETTER "N" is not a number
What is balance line in centrifugal compressor?
test
What is the difference between axial in-line fans and centrifugal inline fans?
Axial fans are like a propeller - like most domestic fans. Centrifugal fans are like water or paddle wheeels that sit inside a case. Instead of water turning them, the wheel is driven by the motor and that moves the gas. In-line merely means that the fan sits in the gas flow.
Why centrifugal pump is not called a positive displacement type of pump?
A positive displacement pump causes a fluid to move by trapping a fixed amount of it then forcing (displacing) that trapped volume into the discharge pipe. Centrifugal pumps impart pressure to the fluid, to cause a pressure differential and cause flow, but even if the outlet is sealed, the pump can continue to run because it hasn't trapped the fluid. When no flow is occurring, a centrifugal pump acts like a propeller spinning in the water. If flow is stopped on a line that a positive displacement pump is supplying flow to, the pump is forced to stop since the trapped fluid prevents it from moving any more fluid.
Is there a required minimum pipe size for a shower?
1/2" water lines. Drain line determined by flow rate of showerheads and bodysprays being used. 5.7 gpm or less flow rate would need 1 1/2" drain, which is minimum size allowed.
Why centrifugal force is zero when a particle moves along straight path?
The expression for centrifugal force is m v2 / r. For a straight line radius of curvature r is infinity. So the centrifugal force will become 0 as 1/infinity = 0
What best explain the significance of the continental divide?
It has no 'purpose' it is a natural occurring division. The continental divide is a line that runs down through the Rocky Mountains and on the west side of the line rivers and streams flow down toward the Pacific Ocean and on the east side of the line rivers and streams flow towards the Atlantic Ocean.
What is surge limit in cetrifugal compressor?
Surge Limit is the Minimum Flow Point ( in the compressor characteristic curve ) below which the compressor operation become instable. If the flow-rate is reduced, the pressure developed by the compressor decreases. Then, the pressure in the discharge line becomes greater , and the gas flow back into the compressor. As soon as the pressure in the discharge line drops to below that developed by the compressor, the gas again flows in the discharge line. Then, the cycle repeats. The oscillating pressure and flow rate will cause audible vibrations and shocks, and could damage the compressor blades, seals, and other components. Therefore, the compressor requires an antisurge control system to limit the flow rate at a minimum point, safely away from the surge limit.
Differences between centrifugal compressors and centrifugal pump?
centrifugal pump uses centrifugal action while reciprocati pump operates on resiprocating motion of pistonA centrifugal pump will typically give you a higher flow rate but a lower pressure, where a piston pump will give you more pressure but a lower flow rate.
What is the purpose of a number line?
the purpose of a number line is to help math.
What is bleed valve?
(engineering) A small-flow valve connected to a fluid process vessel or line for the purpose of bleeding off small quantities of contained fluid.
What are the possible solutions gor flow line maps?
A flow line for a map on a vector field is a path such that .
When I Access My Credit Line What Is The Minimum Amount I Have To Request?
No. There's no minimum amount whenever you transfer cash out of your credit line.
