창의설계융합공학 Creative Design Convergence Engineering Presentation Title



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창의설계융합공학 Creative Design Convergence Engineering

Presentation Title :

Integrated life straw with Nicolas Tesla One-Way-Valve



By: Team 4
  • Heo Sung Ku
  • Shahzeb Tariq
  • Juin Yau Lim
  • Amirsaman Tayerani

Introduction

Country with low safely accessible drinking water

Effective, portable water purification system

Filter up to 0.2 microns (99.9999% bacteria)

Inner purifier made of BPA-free plastics

https://www.twobirdsbreakingfree.com/best-water-purifiers-for-travel



Mechanism

https://www.lifestraw.com/



Mechanism:
  • Works entirely mechanical without any chemical dosage, moving parts, or batteries.
  • Water passed through two polyester textile pre-filters with the mesh sizes 100 and 15 microns.
  • Bacteria (i.e., E-coli, campylobacter) and protozoa (i.e., giardia lamblia, cryptosporidium parvum).
  • Flow rate of 1.7 L/min.
  • Approximately 4,000 litres before expiry.

Limitations and Suggestions

https://www.lifestraw.com/



Main limitations:
  • Continuous pressure applied on the device, else the water will backflow to the input nozzle.
  • Considerably cost required for the device

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Suggestions to overcome:


  • Integrating Tesla one-way-valve to the purification device.
  • Manufacturing the device with 3D printing machine.

Nicolas Tesla Valve

YouTube

Main advantage:
  • It has no moving parts to break or wear out.
  • It doesn't actually prevent reverse flow. (washing mode)
  • It is relatively simple and compact.

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Main disadvantage:
  • It is probably harder to construct .
  • It is far less robust and predictable than a simple valve.

2

forward


revers

Other related informations:

A. Lifestraw demonstration:



https://www.youtube.com/watch?v=0iBW28AV5MI&authuser=0

B. Intersections of lifestraw:



https://www.youtube.com/watch?v=8y7y2LqYiuQ&authuser=0

C. Nicolas Tesla one-way-valve (physical phenomenon):



https://www.youtube.com/watch?v=6fgfr2BZUF8&authuser=0

D. Solidwork with Nicolas Tesla one-way-valve:



https://www.youtube.com/watch?v=hDddVUPKJ3M&authuser=0

E. Physics behind Nicolas Tesla one-way-valve:



https://www.youtube.com/watch?v=suIAo0EYwOE&authuser=0

THANK YOU!



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