Particle Separation Methods

1
Particle Separation Methods

• Matt Halstead
• Joe Beerger
• Stacey Wilson

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Particle Separation Methods

• Introduction
• Particle Separation Methods
• Finned Breach System
• Ultra-Fine Filter
• Cyclone Separation

Overview Introduction Finned Cylinder Filter Cyclo
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3
Particle Separation Methods

• Light Gas Gun (LGG) Technology applied to
  real-world war fighting

Overview Introduction Finned Cylinder Filter Cyclo
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Usually 10 to 20 meter barrel length and 2 stages
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Particle Separation Methods

• Light Gas Gun (LGG) Technology applied to
  real-world war fighting

Overview Introduction Finned Cylinder Filter Cyclo
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M1 Abrams Tank Main Gun 5 meters
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Finned Breach Particle Removal System

• Matt Halstead

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Finned CylinderParticle Separation

• Objectives
• Particle Separation Design
• Advantages
• Disadvantages

Overview Introduction Finned Cylinder Filter Cyclo
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Finned CylinderParticle Separation

• Design
• cylindrical separator with fins
• Similar to cross-flow heat exchanger
• Heat used to soften metal as trap
• Maximize particle contact probability

Overview Introduction Finned Cylinder Filter Cyclo
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Finned CylinderParticle Separation

• Advantages include increased surface area, design
  simplicity, and upgraded ease-of-use.

Overview Introduction Finned Cylinder Filter Cyclo
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Finned CylinderParticle Separation

• Unknowns????
• Pressure drop
• HT Characteristics
• Trap material

Overview Introduction Finned Cylinder Filter Cyclo
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0

• System Parameters
• V7747m/s
• L1m
• D0.160m
• ?0.0899kg/m3
• Re1.28x107
• ?P33.7 psi

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Finned CylinderParticle Separation

• Conclusion
• Design concept
• Benefits
• Drawbacks

Overview Introduction Finned Cylinder Filter Cyclo
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Finned CylinderParticle Separation
Overview Introduction Finned Cylinder Filter Cyclo
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Questions?
12
Ultra-Fine Filtration Systems

• Joe Beerger

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Ultra-Fine FiltrationSystems
Design Objectives
Overview Introduction Finned Cylinder Filter Cyclo
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Known Advantages to Design Maximizes filtration
of particles Disposable and in-expensive Primary
Design Hurdle Extreme environment conditions of
weapon system Unknowns Potentially large energy
loss due to pressure difference
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Ultra-Fine FiltrationSystems
Search for the Right Filter
Overview Introduction Finned Cylinder Filter Cyclo
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Most recent and common use for high pressure and
temperature filters is in advanced coal-fired
power plants that utilize coal gasification
The particulate control device (PCD) for coal
gasification contains 91 candle shaped filter
elements
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Ultra-Fine FiltrationSystems
Filter Testing and our Application
Overview Introduction Finned Cylinder Filter Cyclo
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Extremely high particle remove efficiency Long
cycle tests vs. impulse gun system Lower
pressure drop with temperature rise
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Ultra-Fine FiltrationSystems
Optimal Material
Overview Introduction Finned Cylinder Filter Cyclo
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Will not catastrophically fail at 2500F 440
series has increased tensile strength Small air
permeability of 15 ft3/min/ft2 ensures effective
filtering ability
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Conclusions
Ultra-Fine FiltrationSystems
Overview Introduction Finned Cylinder Filter Cyclo
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Ceramic fiber filters have excellent filtration
ability at high temperature A filtration system
would require a complex support system As a
primary design it is too unstable to be
reliable As a secondary design filters could
offer higher collection efficiency
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Ultra-Fine FiltrationSystems
Questions?
Overview Introduction Finned Cylinder Filter Cyclo
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19
Cyclone Separation Methods

• Stacey Wilson

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Cyclone SeparationMethods

• Objectives
• How Cyclones Work
• Advantages
• Disadvantages

Overview Introduction Finned Cylinder Filter Cyclo
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Cyclone SeparationMethods

• How Cyclones Work

Overview Introduction Finned Cylinder Filter Cyclo
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• Fluid enters
• Circular motion initiated
• Inertia forces particles to wall
• Fluid exits

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Cyclone SeparationMethods

• Advantages include low costs, a robust design,
  compact design, and constant pressure drop.

Overview Introduction Finned Cylinder Filter Cyclo
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Cyclone SeparationMethods

• Disadvantages include erosive wear, higher
  pressure losses than other separators, and low
  efficiency for smaller particles.

Overview Introduction Finned Cylinder Filter Cyclo
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Cyclone SeparationMethods

• Conclusion
• Operation
• Advantages
• Disadvantages

Overview Introduction Finned Cylinder Filter Cyclo
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Cyclone SeparationMethods
Overview Introduction Finned Cylinder Filter Cyclo
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Questions?