The Lee-Tseung Lead Out Theory

[ltseung888]

Think about it Eddy, any air being pumped through must lift ALL the one-way valves AND whatever is sitting on top of them in order to pass.

Every bit of mass that sits on one-way valves increases the backpressure of the whole system.

Hans von Lieven

Dear Hans,

Your thinking is good but you have missed an important point.

Air (or air+water) is compressible. The one-way valves do not need to be open all together at the same time.  You can see it in the experiment.  That is also the reason why spacing of the one-way valves affects the efficiency.

Please keep leading or misleading the crowd.  They will be amused and may even learn something.  Such thought exercises keep the brain from going senile.

Lawrence Tseung
Getting the crowd involved Leads Out entertainment and knowledge for all.

[hansvonlieven]

I have missed nothing, learn some physics.

Hans

[ltseung888]

Sure, in a way it would be impressive if Tseung got any water at all up to floor 10.  But at the end of the day, even if he does, 3. what does it prove?  You are pumping the air and water by using muscle power, so it is really hard to compute how much force you are putting out.  The one-way valves lend themselves to the 1. discontinuous pumping, in a way.  It is sort of like pushing a ball up a flight of stairs and taking a break on every step.  If the pump could pump continuously, then the one-way valves would not be needed, but unfortunately Tseung can only afford the foot pump and not any kind of mechanical device.  2. I do agree that the one-way valves add nothing in terms of efficiency.

Dear shruggedatlas,

Your thinking is also brilliant.  It is worth commenting.

1.   Discontinuous Pumping.  You made a very good point here.  If we could get a perfect mix of (air bubble + water droplet) followed by same size (air bubble + water droplet), we might not need the one-way valves.  However, Tseung et al could not locate and buy a perfect air-pump and water injection system that could achieve the perfect mix.  Thus the introduction of one-way valves to achieve discontinuous pumping was needed.

2.   ?I do agree that the one-way valves add nothing in terms of efficiency.?  You agreed too readily.  From experiments, we know that the type and spacing of the one-way valves affect the efficiency of the air+water delivery system.  Obviously, you are allowed to change your mind after you have seen the experiment. 

3.   What does it prove?  First it proves that Tseung et al did the experiment.  Second, it proves that use of an electric air pump is necessary for any measurement.  Raymond Ting initially did not protect his air pumps with one-way valves and got two of them burnt.  One-way valves do have some uses.  Third, it proves that getting usable data needed much more investment in equipment, time, documenting and use of different one-way valves and their spacing.  The owner of such data may not be willing to give such valuable commercial data free.

[Localjoe]

@lee
Strongly agree with hans .... learn some physics or don't make comments like that on subjects you aren't sure of .. most of us don't reply hastily unless provoked.

Your system looses resonance when your valve shuts completely.. if you filled all your containers first .. with water and then the line and got the air out... the natural momentum of the water if done properly could yield a net gain in inertia of the flow. So for instance with some water and air its hard for a pump to raise water in a vertical tube... You change your pressure domain. With just water which is denser than air, a small push from the pump will start the cycle and require less net energy to operate the system... flow in flow out. As well the inertia gain comes from gravity pushing the water down  into the intake and is retained in a closed loop system.  So for each spin on the pump it actually receives pressure increased slightly because of gravity always pushing that vertical tube back into the intake...  Depending on the thickness of the fluid the motors power and the height of the tube parallel to the hmm water capicators... just containers with water and in and out flows un obstructed.
                                                                                                                                    Joe

[ltseung888]

I have missed nothing, learn some physics.

Hans

Dear Hans,

I shall give more physics lessons - the professional physics teacher may beat me up.  That will add to the amusement.

If we can get a continuous flow of air+water with our system using an air pump, we can:

(1)   Measure the Input Energy from the pump alone. Epump
(2)   Measure the potential energy of water gained at the same time. Epotential

If we blindly apply the Law of Conservation of Energy, we would say that Epotenial would always be less than Epump.  For a perfect system, Epotential = Epump.  For the Commercial water pumps, this is impossible.

If we ever achieve Epotential greater than Epump, we need to find and explain the source of this extra energy.  Just one single configuration with consistent figures is sufficient.

The explanation is Energy from Still Air as predicted by Tseung.  The mathematical formulae are:
Einput = Epump + Eair-in
Eout = Epotential + Eair-out

Eair-in = Pin x Vin   where P = pressure and V=volume
Eair-out = Pout x Vout