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Recent content by Thuba

  1. T

    Flow inconsistence

    thats correct, the pumps are being repurposed. So by the fact that the pump operating at very high head and low flow, it means we would need a pump with a higher head?
  2. T

    Flow inconsistence

    Lets assume l am pumping water, that comes to a pump at 1000kg/h and the pump adds a pressure of 5bars, hence leaving a pump at 6bars and 1000kg/h. l then added a valve on the simulation to simulate system pressure drop on COCO simulation. On stream 3, only pressure decreased, but mass flowrate...
  3. T

    Flow inconsistence

    its a centrifugal pump, and the discharge valve is fully open
  4. T

    Flow inconsistence

    Assuming l pump a volume of 2m3/h from a pump, l expect that to be constant in system through continuity equation. Only pressure should drop due to frictional losses.
  5. T

    Flow inconsistence

    yes we use a flowmeter dedicated to our product, soybean oil corrected for S.G. and viscosity at given temperature
  6. T

    Flow inconsistence

    l have a pump rated at 4m3/h and 35m head. lt pumps edible oil through an economizer and the to dearator with some nozzles. From the dearator there is another pump feeding a vessel (rated 9m3/h and 40m head) and there is a flowmeter reading 1800L/h (1.8m3/h). Some how the dearator gets empty or...
  7. T

    pumps

    l have a pump rated at 4m3/h and 35m head. lt pumps edible oil through an economizer and the to dearator with some nozzles. From the dearator there is another pump feeding a vessel (rated 9m3/h and 40m head) and there is a flowmeter reading 1800L/h (1.8m3/h). Some how the dearator gets empty or...
  8. T

    pumps with different kw rating

    oh unbelievable indeed, l replied with confusion, my bad. rpm= frequency×120/number of poles, technically 4 poles cant have 3000rpm. l guess some pumps are meant to be run on 2 poles only motors.
  9. T

    pumps with different kw rating

    Ok thank you all for your valuable information, and l was just moving around the plant and l made an observation on the pumps. And l dont want to change anything, l was just observing that almost all motors are 2 pole (3000rpm) and just out of curiosity l was wondering what will happen if l use...
  10. T

    pumps with different kw rating

    So for the 2 motors, if l place a flowmeter and a pressure gauge downstrean the pump; volumetric flowrate will be the same, but gauge pressure different. More for a pump with higher horsepower?
  11. T

    pumps with different kw rating

    Thanks, l am replacing 2 pole motor with a 4 pole motor, hence l was wondering l should half the rpm too?
  12. T

    pumps with different kw rating

    also the one with a smaller impeller diameter has a higher capacity of 10m3/h
  13. T

    pumps with different kw rating

    l have 2 pumps one is 2.2 kw and another 5.5 kw. l have 2 questions regarding these. 1. The higher the kw rating doesnt imply higher flowrate, as one with 2.2kw has a higher capacity than the one with 5.5kw? 2. Can l replace the motors with one with the same kw rating but differene rpm? lnstead...
  14. T

    clogged suction or discharge pump linr

    block ok thanks, how about a clogged suction, needs more power? l want to have a way to know if its the suction or discharge clogged, by just measuring power
  15. T

    clogged suction or discharge pump linr

    blocked
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