Plates and panels
Bipolar Plate Stack with Anode Radial Flow Field
- Bounding box
- 140.0 × 140.0 × 115.0 mm
- Engine
- Precision B-rep
- Parameters
- 23
- Published
- August 19, 2026
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The prompt
2. Bipolar plates Plate geometry Circular bipolar plate. Outside diameter: 116 mm Active region diameter: 100 mm Membrane outside diameter: 120 mm Membrane sealing width: 8 mm Active membrane region begins at an inner diameter of 20 mm. This leaves a stated 5 mm sealing area. Active outer diameter: 100 mm A 30° section is cut out/unused from the active membrane region. Resulting active area: approximately 69.1 cm² per cell. Titanium For the PoC: Bipolar plate material: Grade 5 titanium Starting stock: 500 × 500 mm Starting thickness: 5 mm One 500 × 500 mm plate produced: 14 bipolar plates 2 monopolar end plates Therefore, one starting sheet supplied enough plates for a 15-cell stack. Flow-field channels Anode side: Radially outward flow-field architecture. Central water feed. Channels distributed around the circular plate. Angular channel spacing: 15° Nominal theoretical number of radial outlet channels: 24 A 30° section is reserved for the hydrogen outlet. Final number of outlet channels: 22 Initial channel depth: 0.5 mm Estimated channel width: approximately 1 mm Titanium machining cutter: 0.75 mm Minimum calculated feed-hole diameter from the stated circumference calculation: 7.64 mm Actual selected central water-feed-hole diameter: 10 mm The design is described as interdigitated. The later/current design differs from the original concept: Outlet channels are shortened. They function more like outlet ports. They begin approximately where the inlet channels terminate. Outlet sections have a 7.5° offset relative to the corresponding inlet geometry. Outlet-section spacing remains 15°. Geometry that cannot be reconstructed from the text The article does not state: Exact radial channel centerlines. Exact radial starting/ending radii. Exact channel width for the manufactured plate. Exact land widths. Exact channel corner geometry. Exact depth profile beyond the stated initial 0.5 mm. Exact central-feed transition geometry. Exact 22-channel angular layout relative to the 30° cutout. Exact outlet-port dimensions. Those need to come from Figure 3/CAD files or supplementary information rather than being invented.
Parameters
| Name | Value | Range |
|---|---|---|
| Vessel Outer Diameter | 140 mm | 100 – 250 |
| Vessel Height | 110 mm | 60 – 200 |
| Vessel Wall Thickness | 3 mm | 1 – 10 |
| End Plate Diameter | 120 mm | 100 – 150 |
| Bottom Plate Thickness | 5 mm | 2 – 10 |
| Top Plate Thickness | 5 mm | 2 – 10 |
| Top Port Diameter | 10 mm | 4 – 30 |
| Top Bolt Count | 6 mm | 0 – 24 |
| Top Bolt Hole Diameter | 6 mm | 2 – 12 |
| Top Bolt PCD | 90 mm | 50 – 140 |
| MEA Count | 15 mm | 1 – 30 |
| Membrane Outer Diameter | 120 mm | 100 – 150 |
| Active Region Outer Diameter | 100 mm | 50 – 140 |
| Active Region Inner Diameter | 20 mm | 4 – 40 |
| MEA Thickness | 0.5 mm | 0.1 – 2 |
| Bipolar Plate OD | 116 mm | 100 – 150 |
| Bipolar Plate Thickness | 5 mm | 2 – 10 |
| Central Feed Hole Diameter | 10 mm | 4 – 20 |
| Anode Channel Depth | 0.5 mm | 0.1 – 2 |
| Anode Channel Width | 1 mm | 0.5 – 3 |
| Anode Channel Count | 22 mm | 0 – 24 |
| Channel Angular Spacing | 15 deg | 5 – 30 |
| Reserved Angle | 30 deg | 0 – 180 |
Every value above is a live dimension. Open a model like this in the editor and each one becomes a slider you can drag before exporting.
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