1. Educational Apparatus to Demonstrate 1-D Conductive Heat Transfer David Olney Todd Jackson Edward Turfitt Charles Pueschel Ian Abramson Alysha Helenic Project 13623

2. Project Description Create an educational apparatus to demonstrate 1-dimensional conductive heat transfer and allow students the ability to measure and calculate the thermal conductivity of a material using the concept of Fourier’s Law.

3. High-Level Customer Needs Enhance student experience and demonstrate core heat transfer topics from Continuum Mechanics I Equipment must be compact, mobile, durable, and reproducible Equipment must be safe for users and observers and and the lab must be able to be replicable multiple times in a lab period Equipment must demonstrate steady state heat conduction, allow for data to be collected manually, and provide the means to calculate the thermal conductivity or a variety of samples

4. Selection of Engineering Specifications

5. Team Roles Team Lead – David Olney Engineering Lead – Todd Jackson Physical Build – Edward Turfitt, Ian Abramson, and Todd Jackson Programming and Electrical – Charles Pueschel and David Olney Documentation – Alysha Helenic

6. System Design Pros Visual Compatible with different length and diameter samples Pressure can be applied on both the heater and cooler Compatible with multiple insulations Heater Disk Cooler Plate Temp Sensor Thermocouples Insulation Variable Orientation Vertical

7. AutoCAD Model

8. Subsystem Components Heater: Insulated Sheet Heater Cooling: Cold Plate Temperature Sensors Data Collection

9. Design Summary

10. Initial System Testing Testing ParameterValue Sample8” long 1” diameter copper rod Power Supply19.9 V, 1.48 A Cold PlateWater with set point of 20.6  C Samples InsulationNone MeasureResults Time to Steady State30 minutes Temperature Difference41  C Thermal Conductivity442 W/(m*K) Difference from Actual+13%

11. Schedule Comparison Original Budget: $1,200 Final Cost: $1,040.30 Difference: $159.70 Savings from: Donations Waived tax Design Verification took longer than expected (until week 13) Continuously obtained parts throughout semester as needed Budget Comparison

12. Opportunities and Suggestions for Future Work Further testing to prove reproducibility of results Add a dial to directly control temperature of heater Integrate pressure sensors into the temperature sensors to control quality of contact between sensor and sample A way to hold pastes or liquids in order to test the conductivity of materials that are not solid Temperature Dial “Boat” to Test Non-Solids

13. Project Self-Evaluation If we were to redo the semester, we would have done more building and programming earlier to allow more time for testing the whole system Overall the group worked well together and everyone completed the work they were responsible for on time

14. Acknowledgements Rochester Institute of Technology Chemical Engineering Department for their funding for this project. Paul Gregorius and Karuna Koppula for their funding and support for this project Michael Antoniades for his guidance Reginald Rogers and Patricia Taboada-Serrano for their advice at the reviews.