Fuel cells - Future Fuel source for Space missions?

prashantakerkar

wrote...

Valued Member

Posts: 1645

Rep:

4 years ago Edited: 4 years ago, prashantakerkar

Fuel cells - Future Fuel source for Space missions?

https://en.wikipedia.org/wiki/Fuel_cell

https://www.nasa.gov/centers/glenn/technology/fuel_cells.html

Do you feel Fuel cells can the future energy / power source for Spacecrafts, Landers, Automobiles etc?

Thanks & Regards,
Prashant S Akerkar

Attached file(s)

Thumbnail(s):

Other attached file(s):

fcm04r0.pdf (3176.8 KB)

You must login or register to gain access to these attachments.

Read 276 times

4 Replies

Report

Prashant S Akerkar

Related Topics

Replies

prashantakerkar Author

wrote...

Valued Member

4 years ago

Thanks.

https://climate.nasa.gov/news/36/fuel-cells-on-the-fast-track/

Fuel cells more environment friendly, climate change control ?

Thanks & Regards,
Prashant S Akerkar

Report

Prashant S Akerkar

bio_man

wrote...

Educator

4 years ago

Hydrogen fuel cells have a terrible EROI. I don't see them becoming mainstream in today's society.

Quote from: prashantakerkar (4 years ago)

Fuel cells more environment friendly, climate change control ?

Harvesting the hydrogen is the difficult part. You need to collect the hydrogen from the electrolysis of water. Electrolysis of water requires a lot of energy input to convert its gases, oxygen and hydrogen. I understand that fuel cells are highly efficient compared to combustion engines relying on fuel, but it's the input of energy that makes it manageable, in my opinion.

Report

bio_man

wrote...

Educator

4 years ago

The idea sounds promising, but don't be fooled by the hype. If you base your opinion on pure science, you'd come to know that hydrogen has a low volumetric energy density, when compressed at commercial pressures ( 150 bar which is 2,100 psi ), it takes twenty times the volume of gasoline to hold the same amount of energy and as most hydrogen fuel cells require pure oxygen, oxygen needs to be carried as well.

Report

duddy

wrote...

Staff Member

4 years ago

@bio_man makes it sound all bad

The advantages: it can be made from water, anywhere that you have water; it can be stored indefinitely with minimal losses

The disadvantages: it's a bit dangerous to handle, it is a gas (and potentially leaks easily, though leaks aren't a safety hazard in a properly designed system

Report

- Master of Science in Biology
- Bachelor of Science

New Topic

Home Search Q & A Board Gallery Resource Library Blog Dictionary Chat	Quick Links Start a Topic Latest Topics Unanswered Questions Courses Study Tools Browse by Textbook	Social Facebook YouTube Community Stats Who's Online Trending Staff	Help About Us Take the Tour Study Tips Posting Guidelines Terms and Policies Contact Us
Biology Forums - Study Force © 2010-2024 \| Powered by SMF \| SMF © 2015, Simple Machines \| Sitemap Biology-Forums.com is not affiliated with any publisher. Book covers, title and author names appear for reference only.