Definitions
Positive Displacement Technology
Zelda is a rotary type positive displacement pump that operates using an internal vane system. A positive displacement pump causes fluid to move trapping a fixed amount of it then forcing (displacing) that trapped volume into a discharge pipe. The volume is constant given each cycle of operation.
Kinetic Turbine
A "Hydrokinetic" turbine is an integrated turbine generator to produce electricity in a free flow environment.
Kinetic Energy
The kinetic energy of an object is the energy which it has due to its motion. It is defined as the work needed to accelerate a body of a given mass from rest to its stated velocity. Having gained this energy during its acceleration, the body maintains this kinetic energy unless its speed changes.
Hydraulic Transmission
Drive system using fluid as a linking mechanism.
Frequently Asked Questions
What is the size and mass of Zelda 1?
Zelda 1 is the size of a small car and weighs approximately 9000 lbs.
What is the size and mass of Zelda 2?
Zelda 2 is 18” in diameter and can weigh from 35 lbs to 100 lbs depending on the composition.
What is the fluid output rate for Zelda 2?
Zelda is capable of transferring fluids out of a 55 gallon tank in under 16 seconds by using a manual hand crank.
What are some alternative drive systems?
Some alternative drive systems are water buffalo, bicycle, hand crank, water wheels, vertical or horizontal axis turbine, water systems (river, channels, waves), effluent flow etc.
How much can Zelda 1 pump?
Zelda 1 is capable of pumping 500 litres per rotation with two 15” outlet ports.
What material will final production Zelda 2 be made from?
Zelda will be available in 3 different material options. Option one is made from primarily plastic for light duty pumping and for travel purposes. The second option is aluminum and some plastic components. The third option is all metal components with some being stainless steel which is ideal for heavy food grade pumping.
What are some uses for Zelda 2?
- quick transfer of fluids
- pumping food grade commodities
- power generation (electricity)
- hydraulic transmission
- pumping domestic water for human consumption
- pumping petroleum products
- desalination of water
- backup, emergency and remote pumping services
- irrigation
- pumping to raised stroage for domestic pressure system
- sump pumping
- pipeline pumping
- metering capabilities
Will Zelda 2 be sold with a mechanical drive system?
- WindTrans will supply drive technical data (motor drive and control information)
- WindTrans will supply manual drive handle for hand crank operation
How much water can Zelda 2 move when operated with a hand crank system?
During our testing we have been able to lift water up 8' into the pump without pre priming and pushing up a head of over 12' using a hand crank. Cranking by hand has enabled us to deliver over 120 gallons of water per minute. We have shown that it is possible to transfer fluid out of a 55 gallon tank in under 16 seconds by using a manual hand crank.
How much water can Zelda 2 move when attached to an electric motor?
Using a 1 HP motor, Zelda was able to pump 230 gal/min up 12 ft of head using 41 ft lbs of torque.
What are some examples of food material that can be pumped with Zelda 2?
Food grade, thick or heavy fluids can be moved without mixing or emulsifying the pumped medium. Some examples are molasses, ketchup, corn syrup, mayonnaise, honey etc.
Why is Zelda 2 better for pumping food grade materials than current food commodity pumping systems?
Zelda is strong enough to pump thick and heavy fluids without the use of heat to keep the medium moving through the pipelines. Thinning of the medium is also not required to make it move through the pipeline which saves time and money.
What are the benefits of having a dual direction pump?
Zelda uses positive displacement technology and operates efficiently forward and in reverse, or right and left in the case of being installed in a pipe line system. This means if there is a leak or a maintenance issue ahead of Zelda then she can simply be reversed and product detoured.
Is the test facility available for tours and demonstrations?
Demonstrations are available on an invitation only basis. If you are interested in in attending one of these demonstrations and would like to request an invitation please contact us.





