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MakesThingsGo - > Makes Things Go -> Makes Things Go - Automotive Edition
Makes Things Go - Automotive Edition
I've been holding off on writing about green autos for a number of reasons.  There is a lot of info out there, a lot of new tech out there, pluses and minuses and hidden costs etc.  There are hybrid cars that get bad milage (including some hybrid cars that get worse milage than their all gas equivalents).  There are a lot of arguments over what direction we should take.

There are great arguments for pure electric and biofuel and air powered and hydrogen powered vehicles.  There are also arguments against each of them.  All cars run on energy storage mediums right now.  Whether that energy is stored in hydrogen, gasoline, fry oil, or a lithium battery, this is what makes them go.  So how do we even begin to weigh to cost of each against the costs of the others?  Is it pure consumer price or do we count the externalized cost of envirnomental damage?  What about the cost of maintaining access to fuel supplies and the geopolitical opportunity costs of having to maintain relations with and send money to nations who don't particularly care for us?

I know most people aren't going to a car dealership thinking about whether their next vehicle will help or hinder an independant Kurdistan or if the car they are buying is actually helping Iranian leaders maintain control of their country. That may be too much to ask of people who just want to go to work, pick up their kids and go to the beach on the weekend.

So the real question is: when you buy your next car, what are the factors you're considering?  Is it operating cost or capital cost, how it looks and how it drives, or are you one of the few who is thinking about sticking it to the Middle East and going green?
Posted in these Groups:
Topics: Makes Things Go, cars, automotive, Green, green energy
posted by MakesThingsGo on Wednesday, March 7, 2007 at 08:57 AM
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35 comments from 8 users

1

posted by MakesThingsGo on Mar 7, 2007 at 08:59 AM
Maybe I'll do a link-heavy, green car pRon entry soon.  If y'all have some pretty pictures, feel free to post them up.
posted by robbwillis on Mar 7, 2007 at 09:56 AM
New car, schmoo car. They'll need a crowbar to pry the mustang's keys out of my cold, dead hand.
posted by randomfactor on Mar 7, 2007 at 10:00 AM

I didn't feel able to go hybrid this time 'round but I picked out my car and transmission specifically for gas economy (I get 40 hwy and just under 30 city--of course Bakersfield isn't really "city." 

.

And I bought a bicycle with collapsable baskets a couple weekends ago for short trips.  Of course, I can't fit even one of the spouses on that one...

posted by mattloch on Mar 7, 2007 at 10:02 AM
I'll take you up on that offer, Robb. How's Saturday work for you?  ;)
posted by TomW on Mar 7, 2007 at 10:06 AM
Here's the problem I had with this.  You see a video about the air car, people talk about it, and then you come across something like this: http://www.autobloggreen.co...

Cool idea.  What happened to it?
posted by tkozy on Mar 7, 2007 at 10:11 AM



The only viable current solution is hydrogen. And not necessarily the fuel cell. Internal combustion engines can run efficiently on hydrogen. In much the same way that Natural Gas engines run today.

Hydrogen can be produced using nothing more than renewable resources. Hydrogen is not just a fuel. It is a energy storage medium for renewable resources. A means to transport renewable energy.

Please read the following, then imagine the same type of project in the Tehachapi’s :

North Dakotans Pickup the Hydrogen Future Using Wind

Minot, North Dakota, a town that was once known as "Little Chicago" back in the days of Al Capone was once a major hub for Capone's liquor smuggling operation complete with underground tunnels to conceal the cargo. Minot has come a long way since then and today a major stir is occurring in the sense that renewable energy and hydrogen cars are coming to town.

At Ryan Chevrolet, three dual-fuel (gasoline-ethanol) Chevy Silverado pickup trucks were unveiled that had been converted to run on hydrogen. A Phoenix company, AFVTech completed the conversions and testing of all three vehicles. The hydrogen pickup trucks were being delivered as part of renewable energy research project for the North Central Research Center.

At the North Central Research Station, a wind turbine is being constructed that will convert wind energy to electricity, electrolyze water and generate hydrogen, which will then be used to fuel the converted Silverado pickup trucks. Representatives from Verendrye Electric, North Central Research Center and Central Power Electric were on hand for a ceremony at Ryan Chevrolet.

The wind turbine won't be completed until the autumn, but perhaps just knowing that hydrogen cars have started coming to their state will let the Minot men and women of North Dakota breathe a little easier. Remember, hydrogen is not just a lot of hot air.

 

http://www.hydrogencarsnow....
posted by randomfactor on Mar 7, 2007 at 10:16 AM

I imagine entropy happened to it, Tom.  The energy that goes into compressing the air is greater than the energy you get back out.  It may be lighter or more ecofriendly than battery storage, but to me that means you just need better batteries developed.

.

Now, if you had an inexhaustible clean source of electricity to power it...you wouldn't need to.

posted by randomfactor on Mar 7, 2007 at 10:20 AM

Hydrogen really *ISN'T* a fuel, but as you said an energy-storage medium.  It may be a great way of transporting wind energy without using electric cables, though.  Especially if the turbines are at sea, which I seem to recall has a fair bit of electrolyzable water in the vicinity.

.

Hydrogen leaks *VERY* easily, though.  Our existing natural gas pipelines can't handle it.

posted by tkozy on Mar 7, 2007 at 10:22 AM

Random says:

Now, if you had an inexhaustible clean source of electricity to power it

TK says:

It’s called Wind, Solar, Wave, Tidal etc. (read post above)

TK continues..

The big problem with air power. Is that air is a low grade form of energy storage. It in itself is not a fuel like hydrogen.

posted by tkozy on Mar 7, 2007 at 10:26 AM

Random says:

Hydrogen leaks *VERY* easily, though. Our existing natural gas pipelines can't handle it. 

 

TK says:

Just a portion of what has already been spent in the Iraq Wars. Would have built the entire infrastructure needed to supply America with hydrogen.

Middle East problem solved.

posted by TomW on Mar 7, 2007 at 10:28 AM
RF, isn't that the case with every fuel?  If you build a machine that can produces more energy than uses, let me know.  The thing about compressed air is that there is no secondary waste stream, so any environmental impact can be dealt with at the generation site.
posted by randomfactor on Mar 7, 2007 at 10:29 AM

Just a portion of what has already been spent in the Iraq Wars would have solved a *LOT* of our problems.

.

And that "surge"?  Turns out Bush was lying about the cost of it from the beginning.

http://www.cbsnews.com/stor...

posted by randomfactor on Mar 7, 2007 at 10:33 AM

A "fuel" is something you find lying around that you can burn.  If you have to manufacture it, it's an energy-storage device.  Some are more efficient than others--I have my doubts about the efficiency of compressed air (there's a lot of waste heat in the process, for one thing). 

.

You're going to lose energy at every step of the game.  The trick is to minimize those steps.

posted by tkozy on Mar 7, 2007 at 10:34 AM


Random

Imagine Hydrogen powered farm equipment. Hydrogen obtained from renewable resource located on the farm itself. In effect, after a initial capital investment. Cheap fuel for the farm.

Lowering the cost of fuel for farm equipment. Will encourage more mechanization on the farm.

More mechanization will reduce the desire to hire illegals.

Fewer illegals will mean more secure borders.

And renewable domestic resources will solve many of our problems in the middle east

posted by TomW on Mar 7, 2007 at 10:35 AM
I like hydrogen, but it takes a lot of juice to make using clean processes.  The other problem is well put here: http://www.eia.doe.gov/kids...

Hydrogen has the highest energy content of any common fuel by weight(about three times more than gasoline), but the lowest energy content by volume (about four times less than gasoline).
posted by randomfactor on Mar 7, 2007 at 10:37 AM
Now imagine the same thing, but substitute methane for hydrogen.
posted by TomW on Mar 7, 2007 at 10:37 AM
OK RF, I'll take that definition of fuel vs. energy storage.  So basically you're saying if nature traps the energy, it's a fuel.  Correct?
posted by randomfactor on Mar 7, 2007 at 10:39 AM
By my definition, yes.  And the further back in time the "trapping" occured the better.  There's no fuel like an old fuel.
posted by TomW on Mar 7, 2007 at 10:40 AM
RF, on methane vs. hydrogen: That is exactly how the farmers would produce hydrogen.  They would burn methane to separate the water.  So cut out the hydrogen step of the process since it would only result in further energy loss.
posted by tkozy on Mar 7, 2007 at 10:46 AM

Random, I understand what you are saying.

My point being. Add air to hydrogen and you will get a combustible product.

Add compressed air to air and you get more air.

 

bigemo_harabe_net-108.gif

posted by randomfactor on Mar 7, 2007 at 10:53 AM

Shred dollar bills and you get a combustible product.  In the long run, hydrogen has a place in the total scheme, but a relatively minor one (IMHO).

.

The basic problem with our energy economy is that it puts all of our baskets onto too few eggs.  As Uncle Mao said once, "let a thousand flowers bloom."  There is no one answer to our energy problem except perhaps conservation, which is *ALWAYS* a good idea.  Hydrogen for energy storage in out-of-the-way places; methane and (some) ethanol in farm areas, wind and water and OTEC and tidal after careful assessment of the drawbacks of each. 

.

The reason Shrub's pushing hydrogen and ethanol is that big oil and big ag stand to make billions from it, not because it has obvious advantages over other methods.

.

IF there were a single egg which would save us, it would likely be controlled fusion.  Which can produce H2 semi-directly as one of its possible outputs.  Take a tenth of the Iraq budget and put it into fusion research and you might have had a breakthrough by now.  Perhaps--you can't count on breakthroughs.

posted by TomW on Mar 7, 2007 at 11:05 AM
Well, I think most of us have moved past biofuels, or at least the current ones.  I'm still pulling for algal oil:  http://www.worldchanging.co...

There are ways to produce hydrogen on a small scale, but I think any push towards a new fuel needs to also concentrate on local production.  The energy losses in transporting fuels are immense.
posted by mattloch on Mar 7, 2007 at 11:16 AM
But I think that biofuels hold a lot of promise for the farmers, Tom. Don't forget, the diesel motor was invented to give farmers a power source where they could grow their own fuel. Diesel-hybrids are the next step of that technology. Past that, we'll see what the options are.
posted by TomW on Mar 7, 2007 at 11:45 AM
Mattloch, sorry about that.  I meant biofuels as the main fuel for autos.  On farms, biofuels are great.  I just think scaling biofuel for the country when you're using corn etc is a bad move.  If you could use hemp which needs little water and a short growing season, I could see the benefits.
posted by randomfactor on Mar 7, 2007 at 11:48 AM
I want to see a hemp-fueled power plant.  Heck, I want to live downwind from a hemp-fueled powerplant.
posted by tonyh on Mar 7, 2007 at 06:36 PM

The Diesel engine was invented by Rudolf Diesel and pattented in 1892. It was originally designed to burn several different fuels, the main one being COAL DUST. It wasn't invented for Farmers to grow their own fuel. That's B.S. Rudy invented it, but it was perfected by work from a number of Engineers over the years. Actually, Isuzu, in Japan, made the diesel engine into what we all know it to be today. Isuzu started building diesel powered cars as far back as the mid 1930's. Their diesel engines are far better than all others.

Hydrogen is EXTREMELY unstable. If you think a gasoline tank blows up really well, you should see a Hydrogen cylinder go up...........WOW! It'd be GREAT to be in a traffic accident with a hydrogen fuel cell in the car. There wouldn't be any Funeral expenses for anyone in the immediate area. They'd be gone.........POOF!

posted by tonyh on Mar 7, 2007 at 06:39 PM
If you want to talk about growing your own fuel, you don't have to look any farther than the old Bootlegers of the South. They were burning Corn Liquor in their cars, because they could make it cheaper than they could buy gasoline. The extra horsepower was an accidental discovery.............
posted by tkozy on Mar 7, 2007 at 06:50 PM

1. Is hydrogen more dangerous than gasoline?

Since any fuel we use is flammable, it is inherently dangerous. Hydrogen is often used as a gaseous fuel, which makes it similar to natural gas and town gas, which have been used in America, Europe, and Asia for heating and lighting for almost two centuries. One difference is that hydrogen is nontoxic, so it’s not harmful to breathe. It’s also so light that it scatters immediately upward when there is a leak, rather than pooling about, polluting groundwater, and soaking into clothes. The end assessment is that when hydrogen is handled with care appropriate to any gaseous fuel, it is safer than fuels in standard use.

2. Is burning hydrogen like the hydrogen bomb?

No. Burning hydrogen, just like burning gasoline, natural gas, or a candle, is a chemical reaction, which means that only the electrons get shifted around and new compounds are made, like water, but the basic atoms are the same. In a nuclear reaction, the actual nucleus of the atom (the protons and neutrons) is changed.

3. Did hydrogen cause the Hindenburg to burn?

No. It turns out that the coating of the Hindenburg airship was treated with two major components of rocket fuel, aluminum and iron oxide. When the airship was docking in 1937, an electrical discharge ignited the skin, and the fire raced over the surface of the airship. In fact, 35 of the 37 people who died, perished from jumping or falling to the ground. Only two of the victims died of burns, and these were from the burning coating and on-board diesel. The hydrogen burned quickly, upward and away from the people.

 

http://www.hydrogennow.org/...
posted by mattloch on Mar 7, 2007 at 11:18 PM
While coal dust was used to power Rudolf Diesel's first experimental (prototype) version of the diesel engine, it was never Diesel's intention to make coal dust the primary fuel source. BS, it is not.
posted by tkozy on Mar 7, 2007 at 11:23 PM

 

Tony says:

Their diesel engines are far better than all others.

TK says:

The Duramax better than the ISB? Not in this lifetime.

soldier.gif

posted by anonymous on Mar 8, 2007 at 07:38 AM
H.R. Pillsbury also made a diesel engine that was powered by flour dust during WWI.  He called it the Doughboy.  It never quite caught on but he managed to make a living in spite of his failure.
posted by randomfactor on Mar 8, 2007 at 07:46 AM

Re:  the Hindenburg disaster.  While it's difficult to imagine, seeing the newsreel footage, two-thirds of the passengers *SURVIVED* the crash.  Because hydrogen burns *UP*, as you said.

posted by tkozy on Mar 8, 2007 at 08:40 AM

Random

It is a scene etched into the minds of the entire world. A horrendous disaster.

But imagine a 1 inch hole punched into a 52 gallon gasoline tank (Dodge PU). The fuel doesn’t completely burn immediately. It rolls down the street into the sewers/gutters and burns for a very long time. Spreading flames over a large area.

If the same thing happens to a hydrogen tank It would create a blow torch like flame in the immediate area of the hole. But there would not be fuel creeping about the roadway. And because there is not oxygen in the tank. It can not explode. Also the hydrogen would not be confined once it leaves the tank. Therefore no explosion.

Mix oxygen and hydrogen into a balloon and set it on fire. You will have a pretty good percussion. But the flames are confined to a small area. And basically rise up Not disturbing the burning paper it was sitting on a greatly as you would expect.

posted by tkozy on Mar 8, 2007 at 08:43 AM
posted by tonyh on Mar 11, 2007 at 06:26 PM

Mattloch,

"Don't forget, the diesel motor was invented to give farmers a power source where they could grow their own fuel."

This is what I referred to as B.S.............and it is.

1

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