Nanofluidic Characterization David Sharp David West Justin Davis
- Slides: 36
Nanofluidic Characterization David Sharp David West Justin Davis
Project Background Customer Needs Specifications Scheduling Concept selection Final Considerations Agenda
Thin material with billions of microscopic pores Sought out for controlling separation of fluids Most commonly used for drug delivery and water filtration What is a Nano Porus Membrane?
Characterize the flow rates through nonporous membranes No current ways to accurately tell what the true flow rates will be Data will be used to help the customer accurately predict the correct flow rate for each membrane These membranes will be used as a template to build carbon nano tubes (CNT) and then be used for applications such as cell physiology study. Project Background
Construct the optimal method to test nano-porous membranes through either constructed or purchased materials. Measuring Characteristics of Flow: ◦ Flow rate ◦ Temperature ◦ Pressure Visualize Membrane during testing procedure Edit and Visualize any Data Collected The Goal
David Sharp (Team Leader) – Delegates tasks and maintains work flow David West (Designer) – Conceives concepts and concept selection. Justin Davis (Organizer) – Organizes schedule and keeps records of all working documents Most functions will overlap due to the size of the group and nature of the project Team Members and Roles
Current System
Measuring the pressure, temperature, and flow rate Easy to setup System must have a frame Capability to bleed the system to eliminate air bubbles or exchange fluid Compatible with different membrane sizes Real time visualization of the data User selectable flow rate Visualize membrane Inject secondary fluid into primary flow stream Fit under a microscope Compare Selected Mesurements Adjustable Sampling rate Customer Needs
Test rig size limit (l x w x h) = 200 x 120 x 100 mm Membrane diameter =13 - 25 mm Development cost = $2, 500 Pressure range = < 500 k. Pa Pressure accuracy = 0. 1 Pa Rate range = 0 - 10 m. L/min Flow rate accuracy =. 001 Micro. L/min Temperature range = -20 to 100 deg C Temperature accuracy = 0. 01 deg C Fine sampling rate = 100 samples per second Coarse sampling rate = 1 sample per minute Specifications
Laminar Flow through the pipe Standard Temperature and Pressure Fully Developed Flow Steady Flow Incompressible Flow Calculation Assumptions
Characterizing Flow
Gantt Diagram
Functional Decomposition
Pair wise Comparison Matrix
Pair wise Comparison Graph
Highest customer needs ◦ Measuring of flow rate, pressure, and temperature ◦ User Selectable flow rate ◦ Software/Storing and editing Data Lower customer needs ◦ Acquiring selected measurements ◦ Fit under Microscope Pair wise Comparison Analysis
Pareto Chart
Pareto Graph
Budget is major contributor for project design Test rig size will limit sensor sizes, however will not include pump Any need including data selection or constraint input scores high Note: A high score is due to the parameter being affected by a number of constraints Pareto Analysis
Risk Assessment
Flow Meter Temperature Sensor Pressure Sensor Pump Piping Membrane Holder Membranes (13 mm) Computer Interface Program Main Components
Pump Pugh Diagram
Calculating Flow
Flow Meter Pugh Diagram
Calculating Flow
Temperature Sensor Pugh Chart
Pressure Sensor Pugh Chart
Membrane Holder Pugh Chart
Rough Membrane Holder Schematic
Lab. View’s visual interface makes it ideal for observing data during experimentation Ease to control sensors and other instruments Data can then be either exported from Lab. View for further analysis Although Mat. Lab is a powerful program, Lab. View’s user friendly interface makes it the better choice Computer Interface
System Architecture
Rough System Schematic
Total Cost = $2458. 83 Part Considerations For Final Product (Budget)
Total Cost = $3578. 83 Part Considerations For Final Product (Over Budget)
Team members will arrive to each team meetings on time. Each meeting will be mage on a weekly basis. If a team member can not attend a team meeting, they must inform the other team members before the meeting time. Each task assigned must be evenly distributed within the group. Team members assigned work must complete that tasks by a discussed due date. A team member who can not complete the task promptly, or needs assistance finishing that task must then inform the other members of the group to discus either an alternative or work together to get the task completed. Team Ethics
Key Considerations Moving ◦ Keeping under budget ◦ Keeping within specifications ◦ Accuracy forward What Lies Next ◦ Exact calculations for chosen flow system ◦ Computerized detailed schematics of system Final Considerations
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