Download - Degassing Using Hot Microbubbles Mediated by Fluidic Oscillator (Koh's conflicted copy 2015-11-17)
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QFS TECHNOLOGYDEGASSING USING HOT MICROBUBBLES MEDIATED BY FLUIDIC OSCILLATOR
By Edmund Koh
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CONTENT
Background and
Motivation
What, why and how
Microbubbles?
Research Project
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CHRONIC KIDNEY DISEASE
End Stage Renal Disease
Increased Life
Expectancy
Lifestyle choices
Modern Diet
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DIALYSIS AS A FORM OF TREATMENT
Picture from: https://psnet.ahrq.gov/webmm/case/224/dangerous-dialysis [Accessed on 15/11/2015]
Picture from: http://3.imimg.com/data3/ME/LC/MY-3330897/nipro-diamax-dialysis-machine-500x500.jpg [Accessed on 15/11/2015]
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QUANTA FLUID SOLUTIONS
Picture from: http://www.quantafs.com[Accessed on 15/11/2015]
New Generation Model
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MICROBUBBLESWhat?
Why?
How?
0.001mm< d >1mm
Mass transfer equation
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RESEARCH PROJECT
Degassing
Removal of dissolved unwanted gases
Sterilisation
Removal of biological agents in the water using Ozone
Heat Transfer
Controlled heating through direct contact evaporation
Single step process
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OBJECTIVES
Literature Review
Feasibility Testing
Optimisation
Scale to Product
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PROCESS AND INSTRUMENTATION
DIAGRAMProcess flow
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ASPEN PLUS
Ozone
GPOG DZFOMFC
Dialysate
AirHXSR
MFC Mass Flow ControllerOG Ozone GeneratorGP Gas PreheaterDZFO Dezai Zimmerman Fluidic OscillatorHXSR Heat Exchanger Sterilization Rig
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TIMELINE
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SUMMARY
Replacing Inconvenient
traditional dialysis
treatments
Liaise with QFS to development next generation
model
Integration of degassing, sterilisation
and heat transfer into a
single step process
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THANK YOUAny Questions ?
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THANK YOUAny Questions ?
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KEY COMPONENTS OF DIALYSATE CIRCUIT Heating Deaeration Proportioning Monitoring Ultrafiltration Disinfection
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HOW DOES IT WORK Once pure product has been generated,
bicarbonate and acid solutions are mixed with water to form dialysate solution.
Mixing or proportioning is done in the dialysis unit
Several components of proportioning ensure safe dialysate is monitored by a series of alarms, pumps and monitors
Fluid ultrafiltration occurs by volumetric or flow sensor controllers.
Disinfection prevents bacterial over growth
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OTHER METHODS OF PRODUCING MICROBUBBLES First class uses compression of air stream to
dissolve air into liquid, which is subsequently released through a specially designed nozzle system, to nucleate small bubbles based on cavitation principle
Second class uses power ultrasound to induce cavitation locally at points of extreme rarefaction in the standing ultrasonic waves
Cavitation is formation of bubbles in liquid.