Tech Talk - Hydrogen Fuel Cell Stack Design - Hydrogen Technology - Tech Engineering - Hyfindr Penn
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- čas přidán 23. 07. 2024
- Learn about the design consideration of hydrogen fuel cell stacks from experienced engineers in the hydrogen economy. Steven and Roger discussed the technology behind the hydrogen economy, focusing on fuel cell stacks. The factors that influence stack design are such as power, heat rejection, efficiency, voltage, and packaging space, as well as shock and vibration. In terms of shock resistance, rail applications have the harshest requirements. Roger also discussed the difference between fuel cell stacks used in marine, automotive and rail applications. The need to match the stack voltage to the DC DC converter and the importance of ensuring the stack can handle shock and vibration were also outlined.
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Jump right into the discussion topics:
0:00 Hyfindr Tech Talk
0:29 Welcome, Roger Penn
1:08 What is the maximum number of cells that you can stack together in Fuel Cell Stacks?
1:45 How big a fuel cell stack can get?
3:11 Some fuel cell stack design considerations for the number of cells
5:31 How does the cell area influence the design of a fuel cell stack?
6:12 Technical considerations of a DC DC converter for a fuel cell stack
8:06 Fuel cell stack polarization curve for design considerations (Cell voltage vs Current density graph)
10:15 What is the typical range of DC DC converters in a fuel cell system?
11:37 Consideration of shock and vibration for the fuel cell stack design
13:02 Fuel cell stack shift and fuel cell stack bow
14:33 Vibrational frequency consideration for a fuel cell stack design
15:43 Is adding something between cells and housing a good alternative to avoid stack bow?
17:40 What is the harshest application for a fuel cell stack?
19:15 Thank you and Subscribe
Executive Summary of Tech Talk Script:
Hyfindr Tech Talks is a video series focusing on understanding the technology that makes the hydrogen economy work. In this episode, Steven from Hyfindr Tech Talks interviews an experienced fuel cell stack designer from AVL Fuel Cell Canada, Roger. Steven asks Roger about the maximum number of fuel cell stacks that can be stacked together, and Roger explains that the number of stacks depends on the required power, heat rejection, efficiency requirements, active area, current density, packaging space, voltage, DC-DC converter, compression force, shock and vibration, and customer requirements. The topics such as converter voltage and shock and vibration were also discussed. Roger explains that when designing a fuel cell stack, factors like heat rejection, efficiency requirements, active area, current density, packaging space, voltage, DC-DC converter, compression force, shock, and vibration are all interrelated, and the designer must take into consideration all these inputs from the requirements and the customer to decide the number of cells that are required in the stack.
Services shown:
Fuel Cell Stack Design and Development - hyfindr.com/marketplace/servi...
Fuel Cell Stack Testing - hyfindr.com/marketplace/servi...
Store:
AVL Fuel Cell Canada Inc. - hyfindr.com/store/avl-fuel-ce...
Service categories:
Fuel Cell Stack Design - hyfindr.com/product-category/...
Interview partner:
Roger Penn (AVL Fuel Cell Canada - hyfindr.com/store/avl-fuel-ce...)
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In this Tech Talk following topics are addressed: fuel cell stack, stack design, fuel cell stack design guide, converter, DC DC converter, fuel cell stack design, fuel cell stacks, polarisation curve, fuel cell system, hydrogen fuel cell stack, how to design a fuel cell stack, fuel cell stack applications, know how guide fuel cell stacks, guide to design a fuel cell stack, shock and vibrations in fuel cell stacks, engineering of fuel cell stack design, fuel cell stack technology explained, and all the engineering explained. - Věda a technologie
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Awesome talk Roger and Steven, keep up the great work!
Thank you Trevor! Please also join our Hyfindr Tech Community!
Great technical talk; thank you, Roger and Steven
Thank you for your kind words!
Interesting. I did not know that the railway had the harshest apllication of Fuel Cell Tech. Amazing information for engineers like me. Thank you Steven and Roger.
Glad it was helpful!
Designing the gearboxes in trains involves significant technological difficulties due to the intense vibrations. It's intriguing that even though the majority of rotating parts will be eliminated when fuel cells are used as a power source, this issue will persist even though the vibration's amplitude has diminished. Regards for this discussion.
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Is there any book you recommend to start learning about designing FC and all these considerations you mentioned during the video?
Hi Fer! I will contact Roger and aks him to reply to your comment! Please share our channel with other contacts of you that also might be interested! Kind regards Björn
The stack is like a carburetor. The carburetor has a little tube with a plunger that adds gas for exceleration. With higher exceleration the vacuum increases and that draws in mkre fuel. What I'm saying is that it functions like a small battery to start the exceleration that increases the speed of the pistons (vacuum) to set your new fuel requirement.
So you will not need all that math and expensive engineering to make a good product.
For the cell stacks, put slices of your plastic cutting board under the cells. 😂