P13601: Titania Nanotube Reactor
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Detailed Design

Table of Contents

Website should document your journey through MSD, so include work-in-progress as well as latest results. Use pdf's for display whenever possible so that information is easily viewable without the need to download files and open applications. (Your EDGE file repository should still contain original files).

Sample categories are listed below, but feel free to change or add nodes to better correspond to your project and your Guide's expectations.

Prototyping, Engineering Analysis, Simulation

Iterative activities to demonstrate feasibility.

Common Data

The following Images are common data of power calculations from a sample set of data, and the dimensions of the beakers.
public/Photo Gallery/DD Table 1.jpg
Table 1 illustrates the sample set taken from several previous tests to provide a Peak current and a Steady State (S.S) current.
public/Photo Gallery/DD Table 2.jpg
Table 2 illustrates the elemental properties that are involved within the heat transfer between the solution and the coolant.

[Reference]

Forced Convection of water
http://www.engineeringtoolbox.com/convective-heat-transfer-d_430.html

Thermal Conductivity
http://www.engineeringtoolbox.com/thermal-conductivity-liquids-d_1260.html

public/Photo Gallery/Beaker Specs.jpg

The highlighted items are what we chose as our instrument. We chose this particular item for several reasons:
  1. A common product that can be purchased off a shelf, than a machine fabricated choice
  2. We needed a wide mouth, however, as the beakers got bigger the mouth differed slightly but not to the degree we wished.
  3. Use less solution than the larger cups but have enough solution for easier calculations of solutions concentration than those of the smaller ones.

Table 3.1 and 3.2 illustrates the dimensions of the Polypropylene Beaker where in Table 3.2 the area of heat transfer is dependent on the amount of solution is within the beaker, therefore, there are three different volumes of solution provided to give a range of results.

Magnetic Field Feasibility

  1. Placed a magnetic stirrer within our beaker and started the magnetic field.
    • Once the stirrer was at maximum rotation we began to raise the beaker up in increments of .5".
    • We lost the magnetic field between 2.25 - 2.5 inches.
    • This test show that our design is feasible because the distance we are design is 1" above the magnetic plate.

Percolation Feasibility

DetailedDesign/Energy Balance with Electrodes.pdf

Click the above link to see Plan A (Perculation Concept) and the reasons why we went to Plan B (Interior Coiled Heat Transfer design).

Hydrogen Gas

public/Photo Gallery/H2 equation.JPG

The Lower Explosive Limit (LEL) of Hydrogen gas is 4%.

DetailedDesign/H2 Production.htm

Heated Coils Feasibility

public/Photo Gallery/HC Elements.jpg
Table 2 illustrates the elemental properties that are involved within the heat transfer between the solution and the coolant.
public/Photo Gallery/HC Beaker.jpg
Table 3 illustrates the assumed beaker dimensions for the necessary calculations as a feasibility test. Table 4 illustrates the Overall Heat Transfer calculated with an assumption that the temperature difference was 5 Kelvins. Table 5 illustrates the dimensions of the Thermoconductive Tube we were going to use for this concept.
public/Photo Gallery/HC Power.jpg
The above table provides the amount of heat need to be removed utilizing the average generated current from Table 1: Data Sample Set. The equations above were used to create the following table. The above table illustrates the length of tube required for with in the beaker and the number of revolution required to achieve the calculated heat transfer.

DetailedDesign/Plan B Feasibility.xlsx

Click the above link to download the Excel file.

Water Bath Feasibility

[Reference]

For Table 4.1 Spoke with Patricia as an expert to assume the inner wall of the beaker is at the temperature of the solution therefore we can eliminate heat of convection of Ethylene Glycol to simplify the mathematics. Table 4.2 calculation is keeping the heat of convection of Ethylene Glycol within the overall heat transfer coefficient.

public/Photo Gallery/DD Table 5.jpg
Table 5 illustrates the Heat Generated from the electrodes where we applied an average of peak and steady state current use to ultimately calculate the temperature difference from Solution to coolant, to see how effective the water bath system is at cooling.

The following tables: 6,7 & 8, utilized the following equation to calculated the temperature difference and the temperature of the coolant.

public/Photo Gallery/DD Table 6.jpg
Table 6 illustrates the Heat Generated from the electrodes where we applied the average peak current within the reaction and from the results calculated the temperature of the coolant with an initial solution temperature of 65 C. The grey color code is utilizing the overall heat transfer coefficient in table 4.1 and the blue color code is utilized the overall heat transfer coefficient in table 4.2.
public/Photo Gallery/DD Table 7.jpg
Table 7 illustrates the Heat Generated from the electrodes where we applied the average steady state current within the reaction and from the results calculated the temperature of the coolant with an initial solution temperature of 65 C.The grey color code is utilizing the overall heat transfer coefficient in table 4.1 and the blue color code is utilized the overall heat transfer coefficient in table 4.2.
public/Photo Gallery/DD Table 8.jpg
Table 8 illustrates the time required for the chiller to change the coolant temperature by 1 degree.
public/Photo Gallery/DD Table 9.jpg
Table 9 illustrates the time required for the chiller to translate from the peak heat generated to the steady state heat generated. These results provide vital information on what needs to be done with labview.The grey color code is utilizing the overall heat transfer coefficient in table 4.1 and the blue color code is utilized the overall heat transfer coefficient in table 4.2.

Our group had decided to proceed forward with the calculations that include the heat of convection from the solution. This conclusion was drawn due to the fact that the solution will be constantly moving due to the magnetic stirrer that will provide a varying heat transfer. If the solution were to be stagnant than the assumed negligible heat of convection may be held true.

Drawings, Schematics, Flow Charts, Simulations

public/SW Files/Drawings/Rtr As of 10.31. Exploded.PNG public/SW Files/Drawings/Rtr As of 10.31.1127.PNG

The above images are the design the team is moving forward with.

Technical Drawings

SW Files/Drawings/PDFs/Chamber VR2.PDF
SW Files/Drawings/PDFs/Chamber1 Back.PDF
SW Files/Drawings/PDFs/Chamber1 Base.PDF
SW Files/Drawings/PDFs/Chamber1 FRNT Rubber.PDF
SW Files/Drawings/PDFs/Chamber1 FRNT.PDF
SW Files/Drawings/PDFs/Chamber1 Side.PDF
SW Files/Drawings/PDFs/Chamber1 SideB.PDF
SW Files/Drawings/PDFs/Chamber1 Top.PDF
DetailedDesign/Chiller Bath Detail Specs.PDF
SW Files/Drawings/PDFs/Chiller Chamber.PDF
SW Files/Drawings/PDFs/Final Assembly.PDF

Labview Interface

Layout of the user interface for LabView program for data collection

Process Flow Diagram

public/Photo Gallery/PFD.png

Piping & Instrumentation Diagram

DetailedDesign/P&ID Table.pdf

Click on the above link to view on web browser.

DetailedDesign/P&ID Table.xlsx

Click the above link to download the Excel file.

Bill of Material (BOM)

DetailedDesign/BOM.htm

Test Plans

DetailedDesign/Test Plans for System Specifications.htm

Risk Assessment

WorkingDocuments/Risk Management.htm

Click on the above link to view on the web browser

WorkingDocuments/Risk Management.xlsx

Click on the above link to download the Excel file.

Detailed Design Review

Presentation, notes, actions.

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