Design Report: Rotary Arm for Use in U.S. Roaster Corp ...

Design Report: Rotary Arm for Use in U.S. Roaster Corp. Coffee Roasting Machine Cooling Bins

Coolroast Design group:

Drew Sutterfield Jonathan Lim Cameron Buswell Sibongile Hlatywayo

Report Prepared for and Submitted to:

Dan Jolliff

U.S. Roaster Corp.

Dr. Paul Weckler, P.E.

Department of Biosystems and Agricultural Engineering, Oklahoma State University

Dr. Timothy Bowser, P.E.

Department of Biosystems and Agricultural Engineering, Oklahoma State University

Table of Contents List of Figures ............................................................................................................ iii List of Tables ............................................................................................................. iii Executive Summary .................................................................................................... 1 Statement of Problem ................................................................................................ 1 Statement of Work ..................................................................................................... 2

Scope of Work ............................................................................................................................. 2 Location of Work ......................................................................................................................... 2 Period of Performance ................................................................................................................ 3 Acceptance Criteria ..................................................................................................................... 4 Special Requirements.................................................................................................................. 4 Required Resources..................................................................................................................... 4 Task List (2013)............................................................................................................................ 5 Patent Search ............................................................................................................. 6 Design Objectives ....................................................................................................... 7 Technical Approach .................................................................................................... 8 Identifying Customer Needs........................................................................................................ 8 Identifying Target Specifications ................................................................................................. 8 Generating Design Concepts ....................................................................................................... 9 Development of Engineering Specifications ............................................................................... 9 Selecting Design Concepts ........................................................................................................ 10 Environmental, Societal, and Global Impacts of Design Concept ............................................. 13 Design Testing .......................................................................................................... 13 Mixing Capability Test Summary............................................................................................... 14 Cooling Test Summary............................................................................................................... 15 Vacating Test Summary............................................................................................................. 16 Testing Results: Mixing Capability Tests ................................................................................... 16 Testing Results: Cooling Tests ................................................................................................... 19 Testing Results: Vacating Tests ................................................................................................. 20 Discussion: Mixing Capability Tests........................................................................................... 20

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Discussion: Vacating Tests......................................................................................................... 21 Discussion: Cooling Tests .......................................................................................................... 23 Recommendations .................................................................................................................... 24 Project Management ................................................................................................ 25 Deliverables ............................................................................................................................... 25 Budget ....................................................................................................................................... 25 Communication and Coordination with Sponsor...................................................................... 26 Team Qualifications................................................................................................................... 27 References ............................................................................................................... 28 Appendix A: R?sum?s of Team Members .................................................................. 29 Drew Sutterfield ........................................................................................................................ 30 JONATHAN C. LIM...................................................................................................................... 31 Cameron Mancill Buswell.......................................................................................................... 32 Sibongile Faith Hlatywayo ......................................................................................................... 33 Appendix B: Detailed Protocol ? Mixing Capability Test............................................. 34 Appendix C: Mixing Capability Test Datasheets ......................................................... 40 Appendix D: Detailed Results ? Mixing Capability Test .............................................. 47 Appendix E: Detailed Results ? Cooling Test .............................................................. 55

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List of Figures

Figure 1: Rotary Arm in Eugene Song's Coffee Roaster. ............................................................... 6 Figure 2: Initial Prototype Rotary Arm Assembly (left) and Final Assembly (right). ................. 10 Figure 3: Plow Attachment. .......................................................................................................... 11 Figure 4: Leveler Attachment. Initial design on left, final design on right. ................................. 11 Figure 5: Dragger Attachment, front view.................................................................................... 12 Figure 6: Dragger Attachment, back view. ................................................................................... 12 Figure 7: Arrangement of Sampling Cups, Prototype Arm. ......................................................... 15 Figure 8: Arrangement of Sampling Cups, Default Arm.............................................................. 15 Figure 9: Average Mass Percentage of Tracers in Samples (Average Standard Deviation). ....... 17 Figure 10: Average Mass Percentage of Tracers in Samples (Worst Case Standard Deviation) . 18 Figure 11: Average Mass Percentage of Tracers in Samples, Best Case Standard Deviation...... 19 Figure 12: Default Rotary Arm in Model Cooling Bin. Exit hatch (circled in green) is in "closed" position.......................................................................................................................................... 21 Figure 13: Prototype Rotary Arm in Model Cooling Bin ............................................................. 22 Figure 14: Dragger Arm Attachment of Prototype Rotary Arm................................................... 22 Figure 15: Dragger Attachment. ................................................................................................... 24 Figure 16: Gantt chart of Coolroast Design Project...................................................................... 25

List of Tables

Table 1: Table of Mixing Capability Results (Abridged) ................................................................ 16 Table 2: Summary of Mixing Capability Test Results .................................................................... 20 Table 3: Cost of Prototype ............................................................................................................ 26

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