0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
What is the balance piston used for a centrifugal compressor?
Due to the pressure rise developed through the impeller, a pressure difference exists across the hubs and covers such that the impellers have a net thrust in the direction of the compressor inlet. The balance piston counteracts that by being located behind the last impeller. This is accomplished by subjecting the outboard side of the balance piston to a low pressure from the inlet side of the compressor thereby creating a pressure differential opposite to the direction of the impellers. This pressure is acheived by connecting the area behind the piston to the inlet using a line. The impeller thrust not balanced by the balace piston is absorbed by the thrust bearings. I hope this helps
Is the full load current rating of a 3 phase motor referring to amps per phase?
NO, ONLY ONE. If you are measuring line current. The purpose of the line to line measurement is to know if your load is drawing balance ampere and slight difference is negligle.
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.
Purpose of minimum flow line for centrifugal pump?
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.
What is the purpose of construction line?
Question answer here...
What is balance line in centrifugal compressor?
test
What is compressor turndown?
Turndown: The allowable operating range for the centrifugal compressor between the design point and the surge line at any given speed for a fixed compressor head.
What is the function of balancing line in a centrifugal pump or compressor?
The balancing line is a transmission line consisting of two conductors of the same type, that are grounded to the compressor's circuits and to the ground and helps keep external noise down.
What is the purpose of a contour?
to create a mathematical balance to equate one line
What is the balance piston used for a centrifugal compressor?
Due to the pressure rise developed through the impeller, a pressure difference exists across the hubs and covers such that the impellers have a net thrust in the direction of the compressor inlet. The balance piston counteracts that by being located behind the last impeller. This is accomplished by subjecting the outboard side of the balance piston to a low pressure from the inlet side of the compressor thereby creating a pressure differential opposite to the direction of the impellers. This pressure is acheived by connecting the area behind the piston to the inlet using a line. The impeller thrust not balanced by the balace piston is absorbed by the thrust bearings. I hope this helps
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.
Is air condition discharge hot to the touch?
Yes, the discharge line from the compressor can be hot.Yes, the discharge line from the compressor can be hot.
What is the difference between the small line and the big line on a central air unit?
the big line is the suction for the the compressor in the A/C unit, The small line is the compressor discharge that goes to the furnace
What is balance piston line of Turbine?
it is used balance axial thrust on turbine rotor due to admitting of high pressure steam in to turbine. it basic purpose is to save thrust bearing.
How to unfreeze air brake lines in semi truck?
If you can buy air line antifreeze, buy some. Open the hood. Disconnect the air line from the air compressor. Dump some of the air line antifreeze into the air line. Reconnect the air line to the compressor. Isopropyl (rubbing) alcohol may also be used for this purpose in a pinch. Otherwise, idle your motor and wait - the air gets heated, and will eventually unfreeze the air lines.
What is a suction line on an Air Conditioner?
The suction line connects the evaporator outlet and the compressor intlet. Low pressure refrigerator vapour is drawn from the evaporator to the compressor through this line.
What is the discharge line on an air conditioner?
Discharge line is the line in which the refrigerant passes through after being discharged by the compressor. Liquid line is the line located after the condenser, following refrigeration cycle. Suction line is the one that the referigerant is sucked :) in, to enter the compressor.
