Talk:Hydrogen ICE: Difference between revisions
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I'm ''personally'' not a fan, given it probably will require some sort of [[Anti-Corrosion Coating]] if not [[Stainless Steel]] / [[ | I'm ''personally'' not a fan, given it probably will require some sort of [[Anti-Corrosion Coating]] if not [[Stainless Steel]] / [[Inconel]] etc on all the parts in contact with fuel/the combustion chamber to prevent/delay [[Hydrogen Embrittlement]] (although if this makes [[DLC]] coatings on engine parts mainstream...), ''BUT'' i can see to an extent how it could be a " [[Bridge Technology]] " Until [[Fuel Cells]] , ESPECIALLY [[Precious Metal Free Fuel Cells]] become mainstream, but [[Criticisms of "Bridge Technologies" ]] are quite dammning in my opinion (albeit this is moreso a case of [[Technological Lock-In]] rather than Bridge Technology criticism wise, that is mainly used for GHG Emissions and the Renewable Energy Transition if i remember correctly ''but i'm digressing from my point oof...) | ||
Also ''if ICE Powered Vehicles / [[PHEVs]] etc are still going to exist, i'd prefer things like [[Methanol]] , [[CNG]] ( [[RNG]] / [[SNG]] in this case, although [[Bio-CNG]] can obviously be blended it, if not even going [[H-CNG]] ), or [[DME]] be used due to how those negate the [[Hydrogen Embrittlement]] / [[Hydrogen Leak]] (Not as much a hazard, as an annoyance that must be dealt with, gasoline/natural gas/propane leaks are just as bad if not worse! (Re: [[Hydrogen Safety]] ), but hydrogen can "slip past" seals, or even lowkey ''phase through solid materials'' (diffuse if you want to be snobby, [[Gas Barriers]] and all that are a related note even for non-hydrogen gasses/vapors) so that is a MAJOR challenge (Granted [[Integration Hell]] , but) Re ''NASA's SLS'' having issues with that (Granted they will probably "iron out" some of those issues, and they are ''ultra'' risk adverse (don't want another [[Apollo 1]] etc), but yeah) | Also ''if ICE Powered Vehicles / [[PHEVs]] etc are still going to exist, i'd prefer things like [[Methanol]] , [[CNG]] ( [[RNG]] / [[SNG]] in this case, although [[Bio-CNG]] can obviously be blended it, if not even going [[H-CNG]] ), or [[DME]] be used due to how those negate the [[Hydrogen Embrittlement]] / [[Hydrogen Leak]] (Not as much a hazard, as an annoyance that must be dealt with, gasoline/natural gas/propane leaks are just as bad if not worse! (Re: [[Hydrogen Safety]] ), but hydrogen can "slip past" seals, or even lowkey ''phase through solid materials'' (diffuse if you want to be snobby, [[Gas Barriers]] and all that are a related note even for non-hydrogen gasses/vapors) so that is a MAJOR challenge (Granted [[Integration Hell]] , but) Re ''NASA's SLS'' having issues with that (Granted they will probably "iron out" some of those issues, and they are ''ultra'' risk adverse (don't want another [[Apollo 1]] etc), but yeah) | ||
Latest revision as of 02:49, 10 May 2023
I'm personally not a fan, given it probably will require some sort of Anti-Corrosion Coating if not Stainless Steel / Inconel etc on all the parts in contact with fuel/the combustion chamber to prevent/delay Hydrogen Embrittlement (although if this makes DLC coatings on engine parts mainstream...), BUT i can see to an extent how it could be a " Bridge Technology " Until Fuel Cells , ESPECIALLY Precious Metal Free Fuel Cells become mainstream, but Criticisms of "Bridge Technologies" are quite dammning in my opinion (albeit this is moreso a case of Technological Lock-In rather than Bridge Technology criticism wise, that is mainly used for GHG Emissions and the Renewable Energy Transition if i remember correctly but i'm digressing from my point oof...)
Also if ICE Powered Vehicles / PHEVs etc are still going to exist, i'd prefer things like Methanol , CNG ( RNG / SNG in this case, although Bio-CNG can obviously be blended it, if not even going H-CNG ), or DME be used due to how those negate the Hydrogen Embrittlement / Hydrogen Leak (Not as much a hazard, as an annoyance that must be dealt with, gasoline/natural gas/propane leaks are just as bad if not worse! (Re: Hydrogen Safety ), but hydrogen can "slip past" seals, or even lowkey phase through solid materials (diffuse if you want to be snobby, Gas Barriers and all that are a related note even for non-hydrogen gasses/vapors) so that is a MAJOR challenge (Granted Integration Hell , but) Re NASA's SLS having issues with that (Granted they will probably "iron out" some of those issues, and they are ultra risk adverse (don't want another Apollo 1 etc), but yeah)
Granted also some would make the argument that Fuel Powered vehicles are not a good idea and that we should all go BEV (cynics would point to Lithium Reserves , or given Sodium-Ion Batteries , Global Battery Manufacturing Capacity as making this impossible), but personally i view especially given an Appropriate Materials context there will still be a role for Internal Combustion Engines , heck even [[External Combustion Engines | e x t e r n a l c o m b u s t i o n e n g i n e s] (Re Steam Engine ), but yeah.
As per usual I'm Rambling on a Bit but:
TLDR: (Pure) Hydrogen ICE's are a Bad Idea, but Given Japan's Hydrogen Economy and people's love for cars that go vroom vroom and make gear shifting sounds I can See why it is happening