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Kingston University Alumni matchfunded £125
During the priming stage of a spacecraft propulsion system, the slamming of the propellant against the closed thruster valve when the propellant tank valve is opened can cause severe pressure peaks. Priming Event 
This phenomenon is known as hydraulic shock, or the water hammer effect. The pressure peaks can cause a multitude of problems ranging from damaged hardware, to a total collapsing of the pipe. A potential option for mitigating the water hammer is the incorporation of a Tesla Valve in the pipeline. The Tesla Valve is designed in a way that will allow fluid with a low flow rate through unimpeded but will slow down fluid with a high flow rate. Fluid travels through the pipeline at a high flow rate during priming, so by having the Tesla Valve incorporated in the pipeline, it would reduce the flow rate before the propellant impacts the closed thruster valve. The reduction in flow rate will limit the water hammer.
This project involves the manufacturing of a Tesla Valve and validation testing in an experiment rig that simulates the priming event of a spacecraft propulsion system.
The Tesla Valve has never been used in this context before, and if it works, this solution could actually be applied in industry.
This is a unique solution and an opportunity to help mitigate the damage subjected to hardware within a spacecraft propulsion system during priming. It will increase the safety and performance of a propulsion system, whilst reducing cost.
The components that will be bought and used for the experiment rig can be re-used so you will also be helping future KU students with any projects relating to propulsion.
I'm Ijaz, an Astronautical Engineering student in my final year at Kingston University London. My specific interests lie within the field of spacecraft propulsion, which is why my project and dissertation project are related to this.
There is a reward available for anyone who donates £100 or more. Please take a look at the pledge rewards detailed within this page.
Here's some images of the CAD design of the Tesla Valve
What the finished article will look like:
My hope is that if you have made it this far down on the page, this project has piqued your interest. Please do donate, comment or even share on social media to help my project reach as far and wide as possible.
Thank you for your time,
 Moore, J., Gilbert, J., Brindle, B. and Risha, G. (2019). Priming Event Peak Pressures in Liquid Propulsion Systems. Journal of Spacecraft and Rockets, 56(3), pp.899-909.
Select this reward if you just want to donate to the project without receiving a reward.
If you donate £100 or more, you will have your name engraved on my Tesla Valve and be thanked in my dissertation.
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Estimated delivery: 1 April 2020