6 ms·
Not just to delay, but they're hope is that they'll be able to control it when it happens. Oil companies move fluids, using pipes and tankers. Hydrogen is a flu
by askvictor 2y ago
Not just to delay, but they're hope is that they'll be able to control it when it happens. Oil companies move fluids, using pipes and tankers. Hydrogen is a fluid. They want to keep doing what they've been doing. Electricity doesn't fit into their M.O.
- somat 2y agoI don't know what you are talking about, electricity is a fluid.
- marshray 2y agoThe only sense in which "electricity" could be said to be fluid is in its definition. There's no such physical quantity, it's just a vague term for a variety of phenomena.
- kelipso 2y agoMaybe he was talking about aether theory of electricity lol.
- somat 2y agoIt flows, you use fluid equations to describe it's state. I will grant that it flows in a different medium than molecular fluids. but that does not prevent it from being a fluid. As for what is flowing, my understanding is that it is electrons in an em field. which if you think about it is almost the same thing that is flowing in a molecular fluid, only that has drag a bunch of protons around at the same time limiting performance.
- marshray 2y agoWhat is "static electricity" then?
- baq 2y agoPotential difference without flow. A discharge is a dam breaking.
- throwaway3572 2y agoThe fluid analogy is ok for introducing the concept of electricity but it has some significant limitations, so one should grow out of it fairly quickly if you want a deeper understanding of the subject. https://en.wikipedia.org/wiki/Hydraulic_analogy#Limits_to_the_analogy https://en.wikipedia.org/wiki/Hydraulic_analogy#Limits_to_th...
- bawolff 2y agoI don't think its really viable to transport hydrogen via existing (oil) pipelines. Hydrogen leaks everywhere.
- semi-extrinsic 2y agoOil pipelines, no. Gas pipelines, yes. The effort to requalify existing gas pipelines for hydrogen use is well underway in Europe. There might be a need to run at lower pressure, depending on the type of steel, but leaks are not an issue.
- alvah 2y agoHydrogen embrittlement is a massive issue, I’d be interested to hear how this can be engineered around. My understanding is it requires more exotic materials than those used in any existing NG or oil pipelines. Everything I’ve seen claiming it’s viable to use existing infrastructure seems reasonable at first glance, but invariably contains a massive hand-wave or 2.
- VBprogrammer 2y agoI think the obfuscation is that they are generally talking about stuffing small quantities of hydrogen into natural gas pipelines. Similar to alcohol in gasoline.
- ajb 2y agoThe existing infrastructure was originally built for town gas which is ~50% hydrogen, and run successfully for many decades as such. So this is mainly about checking out the more recently designed parts. My understanding is embrittlement is mainly a problem for storage tanks, which need to use high strength materials due to the enormous pressure -and ironically those materials are more susceptable.
- alvah 2y agoExisting infrastructure is designed for & can be used for hydrocarbons with varying levels of hydrogen in their molecular structure; I don't believe there's an issue there. Most of the H2 in town gas is in the form of hydrocarbons, which are less reactive than pure H2, even if there's a relatively high percentage of H2 in the mix (as the H2 is strongly bound to the carbon). Embrittlement is definitely an issue for more than just storage tanks.