RE: This company is doomed6 Jun 2023 11:57
What did i study. irrelivent but also study is the examination of the known. exploration is the discovery of the unknown.
I haven't written out limitations however i will agree they are current limitations. Problems with safety and distribution are not limitations of hydrogen but how we handle it. these are problems, but everything is a problem until there is a solution and handling fuels is not the most complex, time and money is the limiting factor.
My post wasnt looking at today or tomorrow but the years that follow, to say there wont ever be a H2 economy brings in these timescales. yes it is Currently More expensive to produce however so was the extraction of crude oil, time and money makes it cheaper. regarding alternatives, there are a lot of uses for hydrogen and to say that all other alternatives are cheaper maybe relivent now however irrelivent when some alternatives run out.
your professor has a good sense of humour re the 3 laws (zeroth conservation,entropy), however propulsion will always be needed. fossil fuel based propulsion is on a clock, there is only finite. with LH2 already proven to be a game changer in the world of propulsion H2 how long until this is harnessed on a commercial scale ? it may cost a lot to start but so does everything and if cost is the only argument then its already a lost as money is only the exchange of time and worth and time dictates that technology will produce some wonderful things. but back on track looking at thermo dynamics, likmited in production (but scale the ammount of production plants solves this). efficiency is based on the technology using hydrogen. so looking at the thermodynamics of hydrogen alone vs its more common used counterpart gasoline - Hydrogen has a higher energy content per unit of mass (about 120-142 MJ/kg) than gasoline (about 44-46 MJ/kg).
So in the world of thermodynamics and especially energy hydrogen wins hands down.
Current technology limits us, for now. But its nieve to think that those limits exist in the future. Thats not even looking at a waste management solution with a benefit of fuel production. the world produces a lot of waste and we cant bury it all. and recycling it all is equally as expensive to build and develop as hydrogen production.
If your a hydrogen advisor - i appreciate from a company immediate perspective and business however as you mentioned aviation and other areas are branching to the world of H2 as a fuel, it might be worth opening your eyes more to a future, todays problems wont exist tomorrow