10-05-2016, 03:35 PM
|
#1 (permalink)
|
|
PSmodder lurker
Join Date: Jan 2009
Location: Chino
Posts: 1,605
Thanks: 26
Thanked 908 Times in 522 Posts
|
Toyota Mirai 'rollin water'
Regularly see a rare Toyota Mirai on my commute to work, the lone favored driver using the HOV lane. This morning saw him merge onto the freeway from an entrance ramp, crossed in front of me and it quickly accelerated onto the HOV lane. As it took off saw a very noticeable and fascinating strong stream come out from underneath, most likely 'rollin water' vapor.
Last edited by botsapper; 10-05-2016 at 06:41 PM..
|
|
|
|
|
The Following 2 Users Say Thank You to botsapper For This Useful Post:
|
|
 Today
|
|
|
|
Other popular topics in this forum...
|
|
|
|
|
10-06-2016, 11:16 AM
|
#2 (permalink)
|
|
Eco-ventor
Join Date: Oct 2010
Location: sweden
Posts: 1,645
Thanks: 76
Thanked 709 Times in 450 Posts
|
Oh noes! Dihydrogen monoxide!
__________________
2016: 128.75L for 1875.00km => 6.87L/100km (34.3MPG US)
2017: 209.14L for 4244.00km => 4.93L/100km (47.7MPG US)
|
|
|
|
|
10-06-2016, 11:59 AM
|
#3 (permalink)
|
|
Master EcoModder
Join Date: Sep 2012
Location: Victoria, BC
Posts: 1,747
Thanks: 75
Thanked 577 Times in 426 Posts
|
The enviroquacks should jump on this ASAP. That thing is polluting the natural environment with it's man-made H2O.
|
|
|
|
|
10-06-2016, 12:18 PM
|
#4 (permalink)
|
|
(:
Join Date: Jan 2008
Location: up north
Posts: 12,762
Thanks: 1,585
Thanked 3,555 Times in 2,218 Posts
|
wtf  |
|
|
|
|
10-06-2016, 12:43 PM
|
#5 (permalink)
|
|
PSmodder lurker
Join Date: Jan 2009
Location: Chino
Posts: 1,605
Thanks: 26
Thanked 908 Times in 522 Posts
|
'That thing is polluting the natural environment with it's man-made H2O...
Oh noes! Dihydrogen monoxide!'
Saw what I saw...the hell?!
|
|
|
|
|
The Following User Says Thank You to botsapper For This Useful Post:
|
|
|
10-06-2016, 01:48 PM
|
#6 (permalink)
|
|
Master EcoModder
Join Date: May 2008
Location: Maynard, MA Eaarth
Posts: 7,908
Thanks: 3,475
Thanked 2,952 Times in 1,845 Posts
|
All the waste and pollution happens before putting the hydrogen in the car.
Fuel cell cars are DOA. There are ~12-15 public hydrogen filling stations in the entire US. Most of those are in the Los Angeles area - and as many as half of those either run out of hydrogen altogether, or they can only pump 5,000PSI - HALF of what they are supposed to.
Some of those expensive filling stations can only service ~15 cars PER DAY.
Most of today's hydrogen comes from steam reforming natural gas - super-heated steam is used to split hydrogen out of natural gas. And the Mirai only gets ~60MPGe.
Fuel cells have a limited lifespan, and they are very heat intolerant. They waste ~50% of the energy as heat - and they have to stay under 100C - hence the giant cooling intakes.
These are electric cars with a small battery and hydrogen tanks with the fuel cell provide electricity - in a far less efficient way than a bigger battery.
|
|
|
|
|
10-07-2016, 06:00 PM
|
#8 (permalink)
|
|
Not Doug
Join Date: Jun 2012
Location: Show Low, AZ
Posts: 12,240
Thanks: 7,254
Thanked 2,234 Times in 1,724 Posts
|
Water vapor is a greenhouse gas.
|
|
|
|
|
10-08-2016, 12:55 AM
|
#9 (permalink)
|
|
Master EcoModder
Join Date: Jun 2008
Location: Earth
Posts: 5,209
Thanks: 225
Thanked 811 Times in 594 Posts
|
Quote:
Originally Posted by Xist
Water vapor is a greenhouse gas.
|
But its concentration in the atmosphere is self-stabilizing, as long as temperatures remain constant. Unlike CO2, if you increase the amount of water vapor in a particular place, it precipitates out as rain or snow.
|
|
|
|
|
