• 0 Posts
  • 11 Comments
Joined 1 year ago
cake
Cake day: June 14th, 2023

help-circle






  • Oh neat, I actually know a lot about hydrogen-natural gas blends!

    I read the report because of this claim:

    And now, a team of British researchers has found adding hydrogen to natural gas actually increases how much natural gas leaks from stove burners and boilers because the smaller hydrogen molecules help the larger methane ones escape.

    I’ve never heard of small hydrogen molecules helping larger molecules leak. I was curious what the mechanism for this was. It turns out the report does not make that claim at all. In fact, the report claims the additional leakage from hydrogen blends is most likely just the hydrogen leaking. I didn’t run the numbers myself but the data presented seems approximately aligned with that. Hydrogen leaking through fittings is already a well-known and established challenge of blending hydrogen with natural gas. So the central thesis of this news article is completely fabricated.

    I am a little surprised the utility companies are going to soon be mixing in hydrogen. I didn’t think we we’re quite ready to blend in hydrogen into natural gas for the leakage reason, and also because of production scaling issues that we haven’t resolved yet. These challenges are likely within reach soon. For example, the United States department of energy has a large research initiative right now to help lower the cost of hydrogen production to be more competitive with natural gas. We also need to make sure that hydrogen is produced in a carbon-free or carbon neutral way, which is probably going to be dependent upon our electrical grid becoming carbon free.




  • I’m finally getting into both discworld and culture. I’ve read a number of other discworld books before, two of the night watch, mort, I think another I don’t recall right now. Now I’m reading The Colour or Magic. It’s enjoyable but I’m finding I’m going a little slower on it than the others.

    I also have the second culture book, Player of Games, ready to go when I finish the discworld book. I really liked how bonkers Consider Phlebas was (felt like a constant stream of chaos for the crew).