« previous next »
Pages: 1 2 [3]

Author Topic: Make Ammonia Great Again!  (Read 293 times)

0 Members and 1 Guest are viewing this topic.

Offline TimG

  • Hero Member
  • *****
  • Posts: 2616
Re: Make Ammonia Great Again!
« Reply #30 on: April 10, 2019, 06:08:43 pm »
Quote from: ?Impact on April 10, 2019, 06:02:23 pm
No one seriously thinks man can fly either. I will take Elon's calculations over yours in a heartbeat.
Whatever floats your boat. Perhaps we should revisit this discussion when Tesla files for bankruptcy.
Logged

Offline Omni

  • Full Member
  • ***
  • Posts: 8563
Re: Make Ammonia Great Again!
« Reply #31 on: April 10, 2019, 06:22:50 pm »
Quote from: TimG on April 10, 2019, 06:08:43 pm
Whatever floats your boat. Perhaps we should revisit this discussion when Tesla files for bankruptcy.

It ain't just Tesla btw, as I mentioned there are a number of companies perusing the advancement of battery powered aircraft. Here some reading for you from one:

 https://www.theatlantic.com/sponsored/thomson-reuters-why-2025-matters/electric-flight/208/

n the French Alps last summer, a plane set seven new world records. The two-seater aircraft climbed more than 20,000 feet in under two minutes, and reached speeds of 142 miles per hour.  It flew nonstop for 300 miles. Perhaps these numbers don’t sound very impressive. But consider that the aircraft burned no fuel and emitted zero emissions. Instead, the plane used an all-electric motor powered by a single battery.
Logged

Offline ?Impact

  • Hero Member
  • *****
  • Posts: 2941
Re: Make Ammonia Great Again!
« Reply #32 on: April 10, 2019, 06:24:52 pm »
Quote from: Omni on April 10, 2019, 06:22:50 pm
a plane set seven new world records

Witchcraft I tell you
Logged

Offline Omni

  • Full Member
  • ***
  • Posts: 8563
Re: Make Ammonia Great Again!
« Reply #33 on: April 10, 2019, 06:27:16 pm »
And some more witchcraft.

https://www.theguardian.com/business/2017/sep/27/easyjet-electric-planes-wright-electric-flights

Wright Electric claims that electric planes will be 50% quieter and 10% cheaper for airlines to buy and operate, with the cost saving potentially passed on to passengers.

The US firm said its goal was for every short flight to be electric within 20 years. It has already built a two-seater prototype and is working towards a fully electric plane within a decade. The next step is to scale-up the technology to a 10-seater aircraft, and eventually to build a single aisle, short haul commercial plane, with the capacity to carry at least 120 passengers.
Logged

Offline wilber

  • Administrator
  • Full Member
  • *****
  • Posts: 9167
Re: Make Ammonia Great Again!
« Reply #34 on: April 10, 2019, 08:43:47 pm »
As I said before, a big hurdle for electric aircraft will be flying under instrument flight rules which every airline does. ICAO fuel required for IFR flight

Taxi fuel
Trip fuel (to reach intended destination)
Contingency fuel (higher of 5% of "trip fuel" or 5 minutes of holding flight)
Destination alternate fuel (to fly a missed approach and reach an alternate)
Final reserve fuel (45 minutes of holding flight for reciprocating engines, 30 minutes for jets)
Additional fuel (if needed to guarantee ability to reach an alternate with an engine failure or at lower altitude due to a pressurization loss)
Discretionary fuel (if the pilot in command wants it)

Domestic flights can mean the departure airport is also the alternate at times. Example: A flight from Vancouver to kim city can have Vancouver as an alternate if it is closest airport with above alternate minima weather. This happens more often than you think.
Logged
"Never trust a man without a single redeeming vice" WSC

Offline ?Impact

  • Hero Member
  • *****
  • Posts: 2941
Re: Make Ammonia Great Again!
« Reply #35 on: April 26, 2019, 12:54:45 pm »
Geek alert:

I came across a short video that is slightly technical about the 3 major electric vehicles out there (Tesla, GM, and BMW). While it is not as deep a dive as I have seen on Tesla specifically, it is interesting as it compares the big 3. It is far from a marketing level message, and doesn't get into the speeds and feeds, but rather looks at how the manufacturers tackle the major components.

Logged
Informative Informative x 1 View List

Offline TimG

  • Hero Member
  • *****
  • Posts: 2616
Re: Make Ammonia Great Again!
« Reply #36 on: April 29, 2019, 11:00:09 am »
A good example of why significant reductions in CO2 emissions are not going to happen. All we can do is shuffle the emissions around because our large scale energy production options are limited.

Quote
Electric vehicles will barely help cut CO2 emissions in Germany over the coming years, as the introduction of electric vehicles does not necessarily lead to a reduction in CO2 emissions from road traffic. Natural gas combustion engines are the ideal technology for transitioning to vehicles powered by hydrogen or “green” methane in the long term.

Considering Germany’s current energy mix and the amount of energy used in battery production, the CO2 emissions of battery-electric vehicles are, in the best case, slightly higher than those of a diesel engine, and are otherwise much higher. This has been confirmed by a new study by Christoph Buchal, professor of physics at the University of Cologne; Hans-Dieter Karl, long-standing ifo energy expert;
http://www.cesifo-group.de/ifoHome/presse/Pressemitteilungen/Pressemitteilungen-Archiv/2019/Q2/pm_20190417_sd08-Elektroautos.html
Logged
Pages: 1 2 [3]
« previous next »