O2 MembranesPresentation

O2 MembranesPresentation - Solid Oxide Membranes Brent...

Info iconThis preview shows pages 1–16. Sign up to view the full content.

View Full Document Right Arrow Icon
Solid Oxide Membranes Brent Shambaugh Justin Brady Travis Spain
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Overview r Background Information r Design c Components of the System c Microchannel heat exchanger c Unsteady-state heat transfer model c Power Requirements and Supply c Safety and Controls c Unit Sizing r Business Plan c Happiness models c Price/demand determination c Risk Assessment
Background image of page 2
Users of Oxygen Therapy r Chronic Obstructive Pulmonary Disease (COPD) sufferers c Including: emphysema and chronic bronchitis c Not including asthma sufferers r ALA estimates sufferers at 30 million 1 r COPD cannot be reversed 1 r Over 800,000 Oxygen Therapy Patients
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Types of Oxygen Therapy r Compressed Oxygen r Liquid Oxygen c Require Professional to Refill c Limited by Tank Size r Oxygen Concentrators c Very Large; Not Portable c The Portable LifeStyle by AirSep r Solid Oxide Membrane
Background image of page 4
The Oxygen Therapy Market r According to a Valley Inspired Products, LLC survey of oxygen therapy patients: r The average patient receives 7 bottles of oxygen per week r This correlates to a cost of $300-$500 per month r The average patient leaves their home over 5 times per week r They are away for an average of 3.9 hours
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Product Goals r Portable Oxygen Supply r 4 Hour Battery Life r Less than 10 lbs. r Low Noise Output r User-Friendly Operation r Unit Cost of Less than $6000 r Consumer/Market Analysis
Background image of page 6
Executive Summary r Objective : Continue the design of a BICUVOX membrane system for mobile oxygen therapy r Focus : Business Plan, Electrical System, Safety & Controls, System Design r Results : Produces a minimum 5 L/min of 99.9% Oxygen from 15.2” x 9.5” x 12.2” unit weighing 10 lbs at a selling price of $5500
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Unit Design
Background image of page 8
Overall System
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Thomas Rotary Air Compressor r Power Requirement @ 5400 RPM = 2.3 W r Voltage Requirement = 12 V r Diameter = 2.25 in. r Length = 4.45 in. r Weight = 0.55 lbs. r Flow rate = 29.76 L/min r Pump Choice c Oil-less Operation c Maintenance Free c Pulsation Free, Low Vibrations Source: Gardner Denver component Database
Background image of page 10
Microchannel Heat Exchangers Two heat exchangers are used: • One for Nitrogen and Air • One for Oxygen and Air
Background image of page 11

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Heat Exchanger Theory r According to Adams et. al, the limiting hydraulic diameter for application of standard Nusselt Number Correlations such as the Gneielinski, is approximately 1.22mm r The diameter of our microchannels are less than 1.22mm, so new correlations will need to be used
Background image of page 12
Heat Exchanger Theory r A new Nusselt Number correlation was given by Choi et. al for flow of nitrogen in microchannels 3 1 17 . 1 Pr Re 00972 . 0 = Nu Re < 2000 4 . 0 09 . 1 Pr Re 00222 . 0 = Nu Re > 3000 Or Wu & Little:
Background image of page 13

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Heat Exchanger Theory (cont.) r The friction factor in microchannels is not well understood, but generally the friction factor is greater than standard correlations r As a simplification, the traditional fanning friction factor is used to calculate the pressure drop with a correction factor of 1.75 r This correction factor is given by M.J. Kohl to be the highest deviation in the literature
Background image of page 14
Heat Exchanger Theory (cont.) r
Background image of page 15

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 16
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 08/31/2011 for the course CHE 4273 taught by Professor Staff during the Spring '10 term at Oklahoma State.

Page1 / 79

O2 MembranesPresentation - Solid Oxide Membranes Brent...

This preview shows document pages 1 - 16. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online