25 reactions
hGasturbine on 100% hydrogen by Siemens. Why?
https://www.linkedin.com/posts/siemens-energy\_breaking-news-test-successfully-passed-activity-7119593047981453313-8lrJ?utm\_source=share&utm\_medium=member\_desktop ttps://www.linkedin.com/posts/siemens-energy_breaking-news-test-successfully-passed-activity-7119593047981453313-8lrJ?utm_source=share&utm_medium=member_desktop
Siemens has been able to use H2 and natural gas mixes for a gas turbine (even up to 100% H2). I see the use of the molecule H2 to for synthesis of for example green NH3 and for heavy transport, but I don't understand sending it to a gas turbine. Are there no better ways to use the electricity (send through international grid for use elsewhere, thermal batteries, flow batteries, cryo-storage, etc.) to get a higher efficiency?
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Assuming 80% efficiency of a PEM electrolyzer and 80% of gasturbine with cogeneration you get an overall efficiency of only 64%. This does not even include everything needed for the ultra pure water you need for the electrolyzer. Or the energy you need to store the H2.
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I am not an expert in any way so please educate me, why would this make sense?
#industry
https://www.linkedin.com/posts/siemens-energy\_breaking-news-test-successfully-passed-activity-7119593047981453313-8lrJ?utm\_source=share&utm\_medium=member\_desktop ttps://www.linkedin.com/posts/siemens-energy_breaking-news-test-successfully-passed-activity-7119593047981453313-8lrJ?utm_source=share&utm_medium=member_desktop
Siemens has been able to use H2 and natural gas mixes for a gas turbine (even up to 100% H2). I see the use of the molecule H2 to for synthesis of for example green NH3 and for heavy transport, but I don't understand sending it to a gas turbine. Are there no better ways to use the electricity (send through international grid for use elsewhere, thermal batteries, flow batteries, cryo-storage, etc.) to get a higher efficiency?
​
Assuming 80% efficiency of a PEM electrolyzer and 80% of gasturbine with cogeneration you get an overall efficiency of only 64%. This does not even include everything needed for the ultra pure water you need for the electrolyzer. Or the energy you need to store the H2.
​
I am not an expert in any way so please educate me, why would this make sense?
#industry
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