There will be Carbon Emission whether we Power our Cars from Poo or Gasoline

Posted by PITHOCRATES - March 2nd, 2014

Week in Review

Hydrogen is very flammable.  It’s why we use helium in our blimps.  Because using hydrogen is just too dangerous.  As the Hindenburg disaster has shown us.

So hydrogen is a pretty dangerous thing to be messing with.  Unlike gasoline.  Which is pretty safe and stable in the liquid form.  You could even put out a cigarette in a puddle of gasoline.  It’s dangerous doing so.  And you shouldn’t try it.  But the most dangerous thing about gasoline is its vapor.  Ignite that and there will be an explosion.  Which is what happens inside our internal combustion engines.  Where our cars first aerosolizes the gasoline, mixes it with air, compresses it and then ignites it.  Of course that explosion is deep within our engines.  Where it can’t harm us.  Still, it isn’t advised to smoke while refueling.  Because there are gas vapors typically where there is gas.  And you don’t want you car exploding like the Hindenburg.

Fuel cells use hydrogen to make electric power.  All you have to do is stop at your hydrogen fueling station and fill up your hydrogen tanks.  Just don’t smoke while doing this.  Because hydrogen in its natural state is an explosive gas.  This danger aside the hydrogen fuel cell is about to give the all-electric car a run for its money.  And last’s night meal may be providing the hydrogen (see POO-power comes to California: Orange County residents to trial SUVs fuelled by human waste by Mark Prigg posted 2/25/2014 on the Daily Mail).

The fuel-cell powered Tucson can drive for 50 miles per kilogram of hydrogen, and its two tanks hold about 5.64 kilograms (12.4 pounds).

Costs of compressed gas in California range from about $5 to $10 per kilogram, depending on the facility, and it takes around three minutes to fill the tank.

Hyundai says it hopes the technology will become popular – and will take on the electric car as the eco-vehicle of choice.

‘Hydrogen-powered fuel cell electric vehicles represent the next generation of zero-emission vehicle technology, so we’re thrilled to be a leader in offering the mass-produced, federally certified Tucson Fuel Cell to retail customers,’ said John Krafcik of Hyundai Motor America.

‘The superior range and fast-fill refueling speed of our Tucson Fuel Cell vehicle contrast with the lower range and slow-charge characteristics of competing battery electric vehicles.

‘We think fuel cell technology will increase the adoption rate of zero-emission vehicles, and we’ll all share the environmental benefits.’

If you crunch the numbers and compare it to a gasoline-powered Ford Taurus the numbers aren’t so good.  A Ford Taurus gets 29 miles per gallon on the highway.  And has an 18 gallon gas tank.  Which means one tank of gas will take you 522 miles on the highway.  At $3 per gallon for gas that one tank of gas will cost you $54.  By comparison the fuel cell gives you only 282 miles on a full tank.  And costs between $28.20 and $56.40 for a full tank.  Dividing cost per mile that comes to somewhere between $0.10 and $0.20 per mile.  While the gasoline-powered Ford Taurus costs about $0.10 per mile.

So at best the fuel cell will have a fuel cost equal to the gasoline-powered engine.  But it only has about 54% the range on a full tank.  Meaning you’ll have to stop about twice as often to fuel up with the fuel cell.  And good luck not blowing yourself up playing with hydrogen at the fuel pump.  That is if you can even find hydrogen fueling stations along your drive.  The only real good thing you can say about a fuel cell when comparing it to a gasoline-powered car is at least it’s not as bad as an all-electric car.  And those zero-emissions?  Sorry, that’s not exactly true.  The hydrogen may be zero-emissions but making the hydrogen isn’t.

First, sewage is separated into water and biosolids.

The waste water is cleaned, filtered and treated for reuse, while solid waste is piped into airless tanks filled with microbes.

A byproduct of their digestion is a gas that’s 60 percent methane and about 40 percent carbon dioxide, which is burned at the plant for power generation.

However, some is filtered and piped into a unique, stationary ‘tri-generation’ fuel-cell device, designed by the Irvine team, that produces electricity, heat and hydrogen.

The hydrogen gas is then piped several hundred feet to the public pump where fuel-cell autos are refueled daily.

Almost half of the source gas is carbon dioxide.  And carbon dioxide has carbon in it.  This is the same gas they want to shut down coal-fired power plants for producing.  Oh, and methane?  That’s a greenhouse gas.  This is the gas coming out of the butts of cows and pigs that some are saying are warming the planet.  And when you burn methane guess what you get?  Water and carbon dioxide.  More manmade carbon emissions.  That’s a lot of global warming they’re creating in the effort to prevent global warming.

This is one thing fuel cells share with all-electric cars.  They may be emission free.  But the chemistry to make them emission-free isn’t.  We’re still putting carbon into the atmosphere.  We’re just doing it in different places.  And if we are wouldn’t it be cheaper and easier just to keep using gasoline?


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