Tech Talk - Fuel Cell Turbo Compressors - Fuel Cell Technology Explained - Hyfindr Brandstätter

Learn about fuel cell turbo compressors in this Hyfindr Tech Talk. Steven and Markus, an expert from Celeroton, explain the components and functioning of turbo compressors. He describes the impeller, diffuser, and volute, highlighting the fluid dynamics involved. This Hyfindr Tech Talk also mentions various impeller designs and their applications, especially the use of turbo compressors in hydrogen economy. This video addresses concerns about high rotational speeds and cooling and further delve into the details of gas bearings, including their working principle and ability to handle shocks and vibrations.
#hydrogen #fuelcell #engineers #engineering #technology #tech #brennstoffzelle #turbocompressors
Jump right into the discussion topics:
0:00 Hyfindr Tech Talk
0:24 Welcome, Markus Brandstätter
1:18 What is a fuel cell turbo compressor and what are its fundamentals?
2:32 How does a fuel cell turbo compressor work?
4:55 What are the different impeller design variations in the fuel cell turbo compressor?
6:03 Where is the fuel cell turbo compressor used in the hydrogen industry?
7:55 Different components of the fuel cell turbo compressor system
10:05 Understanding the speed of the fuel cell turbo compressor system
11:12 Cooling in fuel cell turbo compressor system
11:45 Understanding gas bearing in the fuel cell compressor turbo system and its types and working
17:52 Understanding costs of fuel cell turbo compressor systems
19:11 Trends in fuel cell turbo compressor systems
20:29 Like, subscribe and comment
Executive Summary of Tech Talk Script:
During this Hyfindr Tech Talks, Steven welcomes welcomes Markus to discuss turbo compressors. Markus is an expert in the field with a Ph.D. from ETH in Mechanical Engineering and leads the R&D for the business unit fuel cell at Celeroton.
In simple terms, a turbo compressor consists of three main parts: the impeller, the diffuser, and the volute. The impeller, rotating at high rotational speeds, works on the fluid and increases the total pressure. The diffuser further increases the static pressure, and the volute connects the compressor to the fuel cell stack.
The various designs of turbo compressors, which differ based on their flow coefficient and mass flow requirements, are discussed. Turbo compressors are used in three main applications: air compression for fuel cell cathode side, hydrogen recirculation, and electrolyzer hydrogen recirculation.
A cut-through view of a compressor system consists of the compressor and the converter. He explains that the compressor's impeller is connected to a rotor suspended by gas bearings, allowing for oil-free and particle-free compression. The torque required for compression is generated by an electric motor mounted between two radial bearings. Markus notes that the compressors operate at high rotational speeds, ranging from 120,000 to 300,000 RPM, which can reach rotational velocities of 300 to 400 m/s.
The conversation then focuses on gas bearings, specifically hydrodynamic bearings, which use a rotating fluid to create a cushion for the rotor. The design and function of gas bearings emphasize their stiffness and ability to handle vibrations and shocks. Gas bearings can be designed for larger shafts and can operate at low speeds before reaching the liftoff speed where the rotor starts floating.
Products:
Turbo Compressor CT-2000: hyfindr.com/marketplace/compo...
Product Category:
Fuel Air Compressors: hyfindr.com/product-category/...
Interview partner and company: Markus Brandstätter (Celeroton - hyfindr.com/store/celeroton/)
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In this Hyfindr Tech Talk below topics are covered: Fuel cell turbo compressor, fuel cell compressor, hydrogen recirculation, impeller variations of a compressor, components of fuel cell turbo compressor, working of a fuel cell turbo compressor, cooling of a turbo compressor, speed of a turbo compressor, gas bearings in turbo compressor, cathode air pump, cost of a fuel cell turbo compressor, and fuel cell technology explained.

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[@abhishekkumarshingala1507]

Very well explained

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[@prelean_consulting]

🤓😀🤔🫡👍
Very inspiring and informative. Nice to get some insights, also regarding some components of our family FCEV which we drive every day in Munich. 😉