(All my decarbonization posts here – ??? ???? ?? ????? – https://lnkd.in/g84YZXWt )
In an earlier post ( https://lnkd.in/g6UtxXHG ), we saw how hydrogen has an absorbing story in its energy density. It’s a tale of two densities – very high gravimetric density, and extremely low volumetric density.
What are the implications of this life of contrasts?
????, ??? ???: Hydrogen should be your go-to green fuel in the future if you are looking for the highest bang (energy) for your buck when your buck is measured in weight.
?? ??? ???? ????: You are going to be a brave chap (or one promoting a new circus in town) if you use hydrogen for anything that moves, without reducing its volume: at an energy density of 2.7 Wh/liter at STP, you will require a hydrogen tank that’s about 25000 liters (25 m3) for a typical Tesla electric car running with a 75 kWh battery pack. A Tesla’s overall “volume” will be about 15 m3 (5m x 2m x 1.5m).
Net Zero by Narsi
Insights and interactions on climate action by Narasimhan Santhanam, Director - EAI
View full playlist???? ??, ???? ???????? ???? ???? ?? ????? ????? ??? ???? ?? ??? ??? (25 ?3/15). You will be the proud source of healthy merriment and laughter all around town.
The obvious implication of the above: ??????? ???????? ???? ?? ???????? ???? ?? ?? ?? ?????????? ??? ???? ????????????, ??? ??? ??? ???????? ????????????.
The less obvious implication: ?? ????? ??? ??????????? ?????????? ????? ???? ???? ???? ???????? ???????.
One more less obvious implication: ??? ??????? ?? ?????? ???????? ?? ??? ??? ????? ?? ?? ????????! (business case for producing hydrogen where it is needed)
Hydrogen is like one of those hyper-energetic, mischievous youngsters who can do amazing things when their energy is utilized but can be quite expensive in many ways when asked to sit idle.
Where significant hydrogen needs to be stored – and these use cases will dominate in the future with land, water, and air mobility sectors eyeing hydrogen as a fuel…
…welcome to the dynamic world of hydrogen storage. That will be another post.