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, DCDC 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, DCDC 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 https://hyfindr.com/marketplace/servi...
Fuel Cell Stack Testing https://hyfindr.com/marketplace/servi...

Store:
AVL Fuel Cell Canada Inc. https://hyfindr.com/store/avlfuelce...

Service categories:
Fuel Cell Stack Design https://hyfindr.com/productcategory/...

Interview partner:
Roger Penn (AVL Fuel Cell Canada https://hyfindr.com/store/avlfuelce...)

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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.