- #1
TorMcOst
- 9
- 0
Dear all,
I have worked with a challenge for two full days now without managing to solve it. I would be MOST grateful if anyone could help me sort out my confusion concerning the problem.
I have a suction hose (100m, Ø 5cm) that is connected to a larger mouthpiece in the end (Ø 30cm). The suction end of the hose is submerged to 7 m draught and the other end are connected to a pump (sucking 60 l/min) in an assisting vessel (2m above surface area). The mouthpiece will be placed 1,5cm from the seabed and are ment to suck up all loose particles on the seabed.
Q1. What will the speed of the water passing between the seabed and the sucking mouthpiece be?
Q2. Would a 60 l/min suction pump be sufficient in order to pump up all loose particles if the sucking mouthpiece were moved over the seabed with 0,7 m/s (still 1,5cm distance between seabed and mouthpiece)?
Q3. How much smaller pump would be needed if the pump was placed right behind the sucking mouthpiece on the seabed?
Thank you very much in advance!
Yours Faithfully,
Tor
I have worked with a challenge for two full days now without managing to solve it. I would be MOST grateful if anyone could help me sort out my confusion concerning the problem.
I have a suction hose (100m, Ø 5cm) that is connected to a larger mouthpiece in the end (Ø 30cm). The suction end of the hose is submerged to 7 m draught and the other end are connected to a pump (sucking 60 l/min) in an assisting vessel (2m above surface area). The mouthpiece will be placed 1,5cm from the seabed and are ment to suck up all loose particles on the seabed.
Q1. What will the speed of the water passing between the seabed and the sucking mouthpiece be?
Q2. Would a 60 l/min suction pump be sufficient in order to pump up all loose particles if the sucking mouthpiece were moved over the seabed with 0,7 m/s (still 1,5cm distance between seabed and mouthpiece)?
Q3. How much smaller pump would be needed if the pump was placed right behind the sucking mouthpiece on the seabed?
Thank you very much in advance!
Yours Faithfully,
Tor