#lh2 — Public Fediverse posts

@sellathechemist @Sustainable2050 @urlyman @GetzlerChem @SusiArnott
1) 2nd law/Carnot efficiency for internal combustion engines or gas turbines does not apply to electrochemistry. Hydrogen fuel cells often "toss away" less than 1/2, not 3/4 of heat engines' +embodied energy".

2) 700Bar gaseous #H2 storage is good for many end uses; liquified #LH2 is a special case.

3) Underground #GH2 storage similar to current seasonal natgas case enables seasonal energy storage & dunkelflaute mitigation.

@sellathechemist @Sustainable2050 @urlyman @GetzlerChem @SusiArnott
1) 2nd law/Carnot efficiency for internal combustion engines or gas turbines does not apply to electrochemistry. Hydrogen fuel cells often "toss away" less than 1/2, not 3/4 of heat engines' +embodied energy".

2) 700Bar gaseous #H2 storage is good for many end uses; liquified #LH2 is a special case.

3) Underground #GH2 storage similar to current seasonal natgas case enables seasonal energy storage & dunkelflaute mitigation.

@sellathechemist @Sustainable2050 @urlyman @GetzlerChem @SusiArnott
1) 2nd law/Carnot efficiency for internal combustion engines or gas turbines does not apply to electrochemistry. Hydrogen fuel cells often "toss away" less than 1/2, not 3/4 of heat engines' +embodied energy".

2) 700Bar gaseous #H2 storage is good for many end uses; liquified #LH2 is a special case.

3) Underground #GH2 storage similar to current seasonal natgas case enables seasonal energy storage & dunkelflaute mitigation.

@sellathechemist @Sustainable2050 @urlyman @GetzlerChem @SusiArnott
1) 2nd law/Carnot efficiency for internal combustion engines or gas turbines does not apply to electrochemistry. Hydrogen fuel cells often "toss away" less than 1/2, not 3/4 of heat engines' +embodied energy".

2) 700Bar gaseous #H2 storage is good for many end uses; liquified #LH2 is a special case.

3) Underground #GH2 storage similar to current seasonal natgas case enables seasonal energy storage & dunkelflaute mitigation.

@sellathechemist @Sustainable2050 @urlyman @GetzlerChem @SusiArnott
1) 2nd law/Carnot efficiency for internal combustion engines or gas turbines does not apply to electrochemistry. Hydrogen fuel cells often "toss away" less than 1/2, not 3/4 of heat engines' +embodied energy".

2) 700Bar gaseous #H2 storage is good for many end uses; liquified #LH2 is a special case.

3) Underground #GH2 storage similar to current seasonal natgas case enables seasonal energy storage & dunkelflaute mitigation.

@jmtixhon

I could have saved SwRI’s client NYSEARCH a lot of money by showing them this 1968 NASA report⬇️: solubility of hydrogen in liquified natural gas (methane) is well below 1% (≈0.06% v/v).

So it is basically impossible to store economically useful amounts of #hydrogen in #LNG.
#H2 #LH2 #GH2 #methane #CH4 #natgas

@jmtixhon

I could have saved SwRI’s client NYSEARCH a lot of money by showing them this 1968 NASA report⬇️: solubility of hydrogen in liquified natural gas (methane) is well below 1% (≈0.06% v/v).

So it is basically impossible to store economically useful amounts of #hydrogen in #LNG.
#H2 #LH2 #GH2 #methane #CH4 #natgas

@jmtixhon

I could have saved SwRI’s client NYSEARCH a lot of money by showing them this 1968 NASA report⬇️: solubility of hydrogen in liquified natural gas (methane) is well below 1% (≈0.06% v/v).

So it is basically impossible to store economically useful amounts of #hydrogen in #LNG.
#H2 #LH2 #GH2 #methane #CH4 #natgas

@jmtixhon

I could have saved SwRI’s client NYSEARCH a lot of money by showing them this 1968 NASA report⬇️: solubility of hydrogen in liquified natural gas (methane) is well below 1% (≈0.06% v/v).

So it is basically impossible to store economically useful amounts of #hydrogen in #LNG.
#H2 #LH2 #GH2 #methane #CH4 #natgas

@jmtixhon

I could have saved SwRI’s client NYSEARCH a lot of money by showing them this 1968 NASA report⬇️: solubility of hydrogen in liquified natural gas (methane) is well below 1% (≈0.06% v/v).

So it is basically impossible to store economically useful amounts of #hydrogen in #LNG.
#H2 #LH2 #GH2 #methane #CH4 #natgas

@ScribblersEmporium

What "storage problem"?

Cost-effective gaseous #GH2, liquid #LH2 and cryo-compressed hydrogen #CCH2 storage methods are available for moderate amounts of H2.

Several avenues of underground storage are good for seasonal storage (think summer - winter) of massive quantities of hydrogen.

@ScribblersEmporium

What "storage problem"?

Cost-effective gaseous #GH2, liquid #LH2 and cryo-compressed hydrogen #CCH2 storage methods are available for moderate amounts of H2.

Several avenues of underground storage are good for seasonal storage (think summer - winter) of massive quantities of hydrogen.

@ScribblersEmporium

What "storage problem"?

Cost-effective gaseous #GH2, liquid #LH2 and cryo-compressed hydrogen #CCH2 storage methods are available for moderate amounts of H2.

Several avenues of underground storage are good for seasonal storage (think summer - winter) of massive quantities of hydrogen.

@ScribblersEmporium

What "storage problem"?

Cost-effective gaseous #GH2, liquid #LH2 and cryo-compressed hydrogen #CCH2 storage methods are available for moderate amounts of H2.

Several avenues of underground storage are good for seasonal storage (think summer - winter) of massive quantities of hydrogen.

Artemis III Liquid Hydrogen Tank moves into Final Assembly 🌑🚀🧑‍🚀🪐

#Area48 #Artemis #ArtemisIII #CELLN #CS3 #CoreStage #LH2 #LiquidHydrogenTank

⏩ 12 new pictures from NASA (Image Library) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=12&user=OptimusPrimeBot&ilshowall=1&offset=20250426010308

Artemis III Liquid Hydrogen Tank moves into Final Assembly 🌑🚀🧑‍🚀🪐

#Area48 #Artemis #ArtemisIII #CELLN #CS3 #CoreStage #LH2 #LiquidHydrogenTank

⏩ 12 new pictures from NASA (Image Library) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=12&user=OptimusPrimeBot&ilshowall=1&offset=20250426010308

#Purple_sulfur_bacteria's unique #protein complex boosts #photosynthesis in harsh conditions.

#hydrogen_sulfide #LH1-RC #LH2 #cryo-electron_microscopy
#Halorhodospira #halophile #extremophile

https://phys.org/news/2025-02-purple-sulfur-bacteria-unique-protein.html

#Purple_sulfur_bacteria's unique #protein complex boosts #photosynthesis in harsh conditions.

#hydrogen_sulfide #LH1-RC #LH2 #cryo-electron_microscopy
#Halorhodospira #halophile #extremophile

https://phys.org/news/2025-02-purple-sulfur-bacteria-unique-protein.html

This is a view of :nasa: #NASA’s #SpaceShuttle #Atlantis’ aft section on display in the #AtlantisMuseum, #KSCVC. #Florida with #OMS pods and 3 replica #SSMEs installed.
The three Space Shuttle Main #Engines burned liquid hydrogen #LH2 and liquid oxygen #LOX stored in the External Tank to push the #Shuttle into #orbit.
The OMS helped the #Orbiter enter its final, intended orbit and carry out its mission.
OMS and the #RCS were both fueled by toxic, but #storable #hypergolic propellants ( #MMH and #N204). These components had to be #decontaminated before displaying them.
https://heronfox.pixels.com/featured/atlantis-engine-section-heron-and-fox.html

This is a view of :nasa: #NASA’s #SpaceShuttle #Atlantis’ aft section on display in the #AtlantisMuseum, #KSCVC. #Florida with #OMS pods and 3 replica #SSMEs installed.
The three Space Shuttle Main #Engines burned liquid hydrogen #LH2 and liquid oxygen #LOX stored in the External Tank to push the #Shuttle into #orbit.
The OMS helped the #Orbiter enter its final, intended orbit and carry out its mission.
OMS and the #RCS were both fueled by toxic, but #storable #hypergolic propellants ( #MMH and #N204). These components had to be #decontaminated before displaying them.
https://heronfox.pixels.com/featured/atlantis-engine-section-heron-and-fox.html

This is a view of :nasa: #NASA’s #SpaceShuttle #Atlantis’ aft section on display in the #AtlantisMuseum, #KSCVC. #Florida with #OMS pods and 3 replica #SSMEs installed.
The three Space Shuttle Main #Engines burned liquid hydrogen #LH2 and liquid oxygen #LOX stored in the External Tank to push the #Shuttle into #orbit.
The OMS helped the #Orbiter enter its final, intended orbit and carry out its mission.
OMS and the #RCS were both fueled by toxic, but #storable #hypergolic propellants ( #MMH and #N204). These components had to be #decontaminated before displaying them.
https://heronfox.pixels.com/featured/atlantis-engine-section-heron-and-fox.html

This is a view of :nasa: #NASA’s #SpaceShuttle #Atlantis’ aft section on display in the #AtlantisMuseum, #KSCVC. #Florida with #OMS pods and 3 replica #SSMEs installed.
The three Space Shuttle Main #Engines burned liquid hydrogen #LH2 and liquid oxygen #LOX stored in the External Tank to push the #Shuttle into #orbit.
The OMS helped the #Orbiter enter its final, intended orbit and carry out its mission.
OMS and the #RCS were both fueled by toxic, but #storable #hypergolic propellants ( #MMH and #N204). These components had to be #decontaminated before displaying them.
https://heronfox.pixels.com/featured/atlantis-engine-section-heron-and-fox.html