Storing Cookies (See : http://ec.europa.eu/ipg/basics/legal/cookies/index_en.htm ) help us to bring you our services at overunity.com . If you use this website and our services you declare yourself okay with using cookies .More Infos here:
https://overunity.com/5553/privacy-policy/
If you do not agree with storing cookies, please LEAVE this website now. From the 25th of May 2018, every existing user has to accept the GDPR agreement at first login. If a user is unwilling to accept the GDPR, he should email us and request to erase his account. Many thanks for your understanding

User Menu

Custom Search

Author Topic: Large Salt water battery ideas and questions  (Read 56492 times)

profitis

  • Hero Member
  • *****
  • Posts: 3952
Re: Large Salt water battery ideas and questions
« Reply #60 on: August 20, 2013, 02:07:53 AM »
add more @mungo.how much did you add.if you had a milliampmeter attatched you would now see drastic increase of current despite voltage drop.ie.total power density way way up

tom42

  • Newbie
  • *
  • Posts: 2
Re: Large Salt water battery ideas and questions
« Reply #61 on: July 25, 2014, 10:18:51 PM »
Wouldn't a shunt-wound or stepper motor be inherently more efficient than a series motor? .Brush life is also a concern

Paul-R

  • Hero Member
  • *****
  • Posts: 2086
Re: Large Salt water battery ideas and questions
« Reply #62 on: July 26, 2014, 03:59:46 PM »
... with a generator backup to drive a paddle (stern) wheel
They can be very inefficient.

A propeller specified for the chosen RPM and the speed you will prefer to travel at might well be much better.

tom42

  • Newbie
  • *
  • Posts: 2
Re: Large Salt water battery ideas and questions
« Reply #63 on: July 28, 2014, 11:17:01 PM »
What are the waste products of a magnesium/salt/carbon(?)  battery? Isn't hydrogen one of them? How is its explosive nature handled?

MarkE

  • Hero Member
  • *****
  • Posts: 6830
Re: Large Salt water battery ideas and questions
« Reply #64 on: July 28, 2014, 11:33:23 PM »
They do emit H2 gas like a lot of batteries do.  It is not a problem unless you are making a big cell and/or the cell is in a highly confined place.    The other waste product is basically milk of magnesia.