Showing posts with label submarine yacht lead acid batteries. Show all posts
Showing posts with label submarine yacht lead acid batteries. Show all posts

Wednesday, January 02, 2008

lead acid batteries

let me just ask - why do we like improwed batteries ?

Lead acid batteries are old facion, they are heavy and energy content is low. These new
batteries are - perhaps less heavy, and the energy content is still quite low.

My point is - that noting in the imagineble future of batteries will ever come close to
giving us an electric submarine with a range to transit to and from ofshore dive sites in
the facion that a diesel - electric boat can do. I am instaling a 1.5 ton battery in UC-3
- costing a fortune - and it gives me less than an hour of the output of the dieselengine
- that uses about 12 liters of fuel pr. hour. Meaning 1500 kg lead acid = 10 kg
dieselfuel. If the super Li-ion comes - and stops exploding and gets economicly
accesseble - the figures may be 750 kg battey = 10 kg dieselfuel. Electric endurance only
still is very limeted. Part two - I enjoy the waste heat from the diesels - electric
boats tend to be quite cold.

Worth following, yes ofcause, but this is not the answer to range as such. Only Adm. H.
Rickovers politically chritical system and the good old diesels can do that.

Some hover manufator of the 1950ies clamed that in the next decade ( the 60ies ) most
hovers for home use would be nuclear powered - so no need for a wire. If anybody here
knows where I can get a few of those hovers !!!

Best regards,

Peter Madsen