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Redd Team Design Project Review

Redd Team Design Project Review. Cailin Penberthy , Nora Sedgwick, Parker Burton, Ruth Reeber , Ujjwal Shrestha. Needs. Research salmon habitat to gain an understanding of specifications Optimize incubator design (streamside and collapsible in-stream). Needs (Cont.).

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Redd Team Design Project Review

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  1. Redd TeamDesign Project Review CailinPenberthy, Nora Sedgwick, Parker Burton, Ruth Reeber, Ujjwal Shrestha

  2. Needs • Research salmon habitat to gain an understanding of specifications • Optimize incubator design (streamside and collapsible in-stream)

  3. Needs (Cont.) • Create a model to test the design • Incorporate project learning into design • Increase egg survival rate

  4. Interviews Existing incubators General research: biological needs of salmon and trout Materials Project Learning: Research

  5. Project Learning: Process

  6. Specifications

  7. Constraints • Easy to reconstruct (high school students) • Minimal cost and high quality • Design/build schedule • Usable for both stream water and river water usage

  8. Deliverables • 2 models • 2 streamside units • 2 collapsible in-stream units

  9. Design Options • Main variable: internal divider arrangement • Single channel vs. dual-channel • Straight vs. slanted • Short vs. long dividers • Comparison using SolidWorksFlowXpress • 10 cubic inches per second • Same divider height, thickness • Same base part

  10. Flow Model Comparison Two-channel: straight Long dividers Mix of short and long dividers Mid-length dividers Two-channel: slanted Short dividers Single-channel: slanted

  11. Long dividers Mixed-length dividers • Pros • Regions of varied flow • Consistent flow in lower region • Cons • Stagnation regions may impede oxygenation, collect debris • Pros • Fairly uniform velocity • Similar to existing design (known to work) • Cons • Little room for fish to congregate • Flow has little variation Best Two

  12. Selected Design • Advantages • Long dividers provide consistent flow through WV boxes • Short divider creates a space for fish to congregate before exiting • Stagnation area is downstream of WV boxes: oxygenation less of a problem Combined Design

  13. Selected Design (Cont.) • Potential problems • Stagnation area may collect debris and sediment • Flow may be too uniform in beginning section: may not simulate stream well Combined Design

  14. Selected Design (cont.) Placement of 24 Whitlock-Vibert boxes

  15. Initial testing on the model showed even at the pump’s maximum flow rate and added gravitational head the model was not able to achieve the desired velocity within the model. Added gravitational head was one foot. A larger pump is needed, once the target velocity .2 ft/s is achieved dissolved oxygen, filter ability, and basic durability testing will commence. Model Testing

  16. Project Costs • Stream-side Model Prices estimated from materials purchased for the models

  17. Project Schedule

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