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8/3/2019 Carbon Particle Disperser Final Presentation 490B
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Carbon-Particle Disperser
Aron Daria
John Terry
December 8, 2009
Advisors:
Dr. Fletcher Miller
Dr. Arlon Hunt
Sponsor:
8/3/2019 Carbon Particle Disperser Final Presentation 490B
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Introduction
Objective: Design and build a scalable
device to suspend prefabricated carbon
particles in a cloud.
Carbon
ParticleDisperser
230nm dia.Prefabricated
CarbonParticles
Carbon
Cloud
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Disperser Placement
Solar Tower
Open Brayton-cycle using a thermal solar tower
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Why Carbon? Carbon has excellent energy absorption properties
The open Brayton cycle system will be more efficient thancurrent systems, which, incorporate coolant-drivenRankine Cycles.
Higher efficiencies mean lower energy costs and less
environmental impacts Carbon particle size is critical for obtaining maximum
efficiency
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Design Process:System Simulation
LabVIEW A program was created to solve for various properties in
the system and determine whether a high-pressure system
was feasible.
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LabVIEW Results: 200 psi would be needed to include a
supersonic nozzle in the system
Conclusion:
High pressure components are expensive
A low-pressure system is acceptable to
prove the concept.
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Design Progression
Block Diagram
SolidworksCompleted System
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Key Features
Upper Chamber Easy to assemble/disassemble
Simple to clean, perform maintenance
and swap parts Diffuser Plate
Interchangeable
Different hole arrays accommodatevarious carbons
Future plates may have small electric
motors to enhance fluidization
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Key Features Cont’d
Recirculation Loop/Flow
Controllers
Unique to Fluidized Beds
Allows independent control of fluidization and cloud production
Particle Ejection Tube Adjustable height provides some
control over cloud density
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Key Features Cont’d
Diaphragm Vacuum Pump Gast DAA-V717-GB Diaphragm Pump
Sealed compression chamber eliminates the
possibility of carbon-particle malfunction
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The Build
Materials: Acrylic:
3.75” OD Tube
1.25” plate
0.125” plate
Stainless Tube
0.5”
Swagelok Fittings
Wood Stand
Processes: 3 Axis CNC:
Flanges, end caps,
diffuser plate
Angle Grinder
Stainless tube
Wood tools
Stand
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Preliminary Results:
Test: Clean air input pressure increased,
constant recirculation pressure. Result: Cloud output exists and increases
with each flow rate (predicted/desired result)
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Future Work
Extinction Tube Calculate the extinction
coefficients (α) at
various flow rates
Desired α = 2m-1
DPS
Find the particle sizes,
and cloud densities in
real time.I/I0 = e
-αx
α = 2m-1
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Conclusions
The Carbon Particle Dispersermeets or exceeds all design
requirements
Our system produces acontrollable carbon cloud
Our final prototype is scalable
regarding size and pressure
Components can easily be
swapped to create a high-
pressure system
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Questions?
Acknowledgments:
Dr. Kee Moon
Dr. Fletcher Miller
Dr. Arlon Hunt
Dr. Sam Kassegne
Mike Lester
