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Alternative fuels and the human intestine
It’s interesting to see that, on a global scale, just 2% of the gas fuel resources are used for powering the world’s transport industries. Obviously, oil is the big natural resource that’s being used to power transportation needs, with 47% of annual oil production being tied up with powering the world’s transport industries. Biofuels on the other hand, while a great idea, are still in the infant stages of being a major player. So biofuels make up a pretty tiny proportion of the world’s transportation fuel requirements. What would make using gas and biofuels more attractive, and what is holding them back? There are researchers who are working hard to overcome the downsides of Biofuels and gas.
Biofuels should be the fuel of the future with crop fuels sounding like they should be a win-win scenario. Biofuel is mostly made from plant-based materials, and Biodiesel and Ethanol are the two main fuels that vehicles are able to run on. In a perfect world, we would grow masses of crops for obtaining the material used in biofuel production. However, the shortage of grain stocks and the surge in food prices has led to a big problem in the viability of sustainable production of biofuels. Corn and soy are correspondingly used for flour, baked goods, meat, dairy and processed foods containing corn syrup and soy, and most economic analysts agree that the increased biofuel production has contributed to the rise in food prices. This isn’t the sort of news we need to hear. Ideally, land needs to be separated and portioned for biofuels over and above the land needed for food production.
To gas we go, and, certainly, you can’t argue with the very low CO2 emissions that come from burning gas as a transport fuel. Researchers are finding ways for making gas a better option to use as a transport fuel – as there has been one or two issues with gas powered vehicles. A more positive finding shows researchers are looking at a gas fuel tank based on the serpentine tubes of the human gut. Now that’s cool.
Emissions from natural gas engines are 10% lower than those of an equivalent petrol engine. However, there is a practical difficulty for gas because the combustion-ready density of methane is lower than for petrol, and about 30% more fuel is needed to cover the same range as a petrol equivalent vehicle. To cope with a higher volume of gas fuel, the reality is that the high-pressure fuel tanks need to be fatter and heavier, which not only takes up a lot of space but it correspondingly dents what could be a better fuel efficiency. It also increases the price of producing the car.
To save space, “Otherlab of San Francisco”, with funding from the US government’s energy research arm, ARPA-E, has found that the human body maximises storage capacity by folding the intestines back and forth. They’ve endeavoured to design a gas fuel tank mirroring the serpentine intestine, so in place of the big, bulky, single large, high-pressure tank, multiple banks of thin, pressurised metal tubes are bent and distributed throughout the car. So a close up of the new gas fuel tank would reveal it folding back and forth, hugging the inside of the wheel arches, roof supports and front wings. They are also looking at designing a gas fuel tank with a flexible honeycomb-like assembly that is able to conform to any shape within the car. This technology, they reckon, could make cars running on natural gas a whole lot more attractive to motorists. I’m not so sure, though, if I would want a potentially explosive gas fuel tank any closer to my body than necessary!
Some V8 competition at last!
At last! I can see some wider interest building in the V8 Supercars, particularly for those of us who enjoy a V8 rumble that’s not necessarily burbling from underneath the bonnet of a Holden or Ford. For over a decade, Holden and Ford have been the two marques battling it out for supremacy in the V8 Supercars Championship. Thankfully, the pin has been pulled on only allowing Ford and Holden to race in this championship and we’re going to see other cars entering into a very competitive V8 racing series.
Nissan has had big success in past years when the regulations for the racing allowed Turbo power and AWD. The Nissan GTR cleaned up in the early nineties. Authorities changed the format soon after Nissan’s success, only allowing Class A racing to encompass Australian-produced Holden and Ford 5.0-litre V8s to race each other. Class B racing included 2.0-litre cars that observed the FIA Class II Touring Car regulations. In my view, the spectacle was never quite as good. I enjoyed watching Volvo’s and Commodores battling it out alongside a BMW 635 CSi, M3 and Jaguar – to name a few of the cars involved in what was a highly entertaining series. I guess, that just shows my age!
Things have changed, and CotF (Car of the Future) is the naming for the new Class A racing format for 2013. The welcome changes in regulations have now loosened to open the door to other car manufacturers that are RWD, V8s that are based on a current four-door sedan shape which is a production model.
So who’s joining the racing party, which has now started? Mercedes are racing their Erebus Motorsport V8 racing car that’s based on the E-Class sedan. Race 1, The Clipsal 500 Adelaide, had Tim Slade finish 15th for Mercedes. Race 2, on the same track, had Lee Holdsworth finish 17th for Mercedes.
Nissan have their V8 racing car which is based on the Nissan Altima four-door sedan. Race 1 had Rick Kelly finish 11th for Nissan, while Race 2 had James Moffat finishing 13th.
Craig Lowndes finished race 1 in first place seated in the cockpit of a Holden Commodore race car, while race 2 had Shane van Gisbergen place first in another Commodore. At present, Holden dominate the standings.
I have heard rumours of Lexus entering the championship, and wouldn’t it be good to see a BMW back in the competition, again.
Catch up with the racing action at http://www.v8supercars.com.au.
All The Fun Of The Motor Show
The Geneva Motor Show was all on last week and, as usual, was a real drawcard for motoring enthusiasts all over Europe and beyond. One wee post isn’t going to be enough to bring you all the cars that were revealed to the world. But one of the things that we all enjoy about motor shows is seeing the things that the designers have come up with but just aren’t going to make it onto the road for real. This is a great improvement over motor shows in the bad old days when the only thing that the companies could come up with to attract viewer attention was draping scantily clad young ladies over their latest offerings. Now they have to use a bit of imagination.
Once again, the Geneva Motor Show of 2013 didn’t disappoint, and the designers came up with the weird, the wild and the wonderful. It seems as though no company is too staid and conservative to come up with something quirky. Whether these offerings are bizarre or beautiful is a matter of opinion… see what you think.
One offering that was certainly eye-catching came from Land Rover , with their Hamann Mystere. If you saw it in black and white, it was anything but a bush-bashing Land Rover – it looked like a cross between a sports car and a 4×4, with low ground clearance but the characteristic chunky looks of Land Rover. But that wasn’t what made the Hamann Mystere stand out from the crowd: the colour was the thing, and it was a shade of metallic pinky-purple that is about as far from the usual Land Rover colours as you can get. According to my teenagers, this colour is cool and looks good on a sports car. All I can say is that if you drove a car that colour and you were a woman with blonde hair, folk would wonder if you were trying to emulate a certain plastic doll. If this SUV ever gets taken off-road, it won’t get lost in any landscape imaginable.
The small Swiss manufacturer Rinspeed (which sounds like it should be a washing machine brand) came up with something called the MicroMax, which looks as though a commuter bus has been put through the hot cycle and shrunk in the wash. This has no seats for anybody – you sort of lean or squat while standing up, and you strap your bike to the back and carry the pram or shopping trolley in the middle. The target market for this, apparently, is the mobile coffee machine people or possibly the ice cream vendors, as there’s plenty of room to bung in whatever you like, but the thing’s still small enough to park anywhere.
Italdesign played fast and loose with a Lamborghini to make the Parcour, named after that French sport where you run cross-city, climbing walls and hurdling park benches. It looks like an Italian luxury sports car but with the ground clearance of a bush-basher. Wonder if they’ve got Hollywood and a few chase scenes in mind.
Toyota came up with the i-Road concept, which can’t make up its mind whether it’s a motorbike or a car. It’s got two wheels at the front and one at the back, is completely enclosed and seats one. Whether this is a good and practical idea, or whether it defeats the whole purpose of riding a motorbike or driving in a car is debateable. It could catch on – we’ll have to wait and see.
Of course, there were plenty of great new cars unveiled at the Geneva Motor Show, but more on those later!
VW Unveils What Could Be The World’s Most Fuel Efficient Production Car
Back in 2011, Volkswagen showed the world a concept car that was designed to be the world’s most fuel-efficient vehicle. Now, just a few days before the Geneva Motor Show, the company has given us all a sneak peek of what’s actually going to be made: the limited edition Volkswagen XL.1.
The Volkswagen XL.1 is yet another example of just how sexy fuel efficiency is these days, with this unit aiming to be the most efficient in the world. And it probably is. It would be hard to improve on fuel efficiency figures of 0.9 litres per 100 km for the combined fuel efficiency figures (I’m pretty sure that those figures are correct; however, I’ve seen at least three figures in mpg, depending on which source you read, ranging from 314 mpg top 261 mpg, with 261 being the most common one quoted). Motoring writers around the globe are getting excited about this “futuristic” car that combines sexy fuel efficiency with equally sexy good looks.
So how did Volkswagen manage to make such a fuel-efficient car? As you would expect, it’s not just one feature that makes is so economical but a whole heap of things.
Number one is the shape: the Volkswagen XL.1 has been made to have a very low drag coefficient, which means that it slips through the air easily and smoothly with a minimum of friction. The shape seems to have been inspired by nature, with the side-on profile of the Volkswagen XL.1 looking a bit like a bottlenose dolphin (now, you can’t get more eco-friendly than a dolphin, can you?). Because there’s less friction to overcome, this means that there’s less energy needed to speed up and keep moving.
Number two is what it’s made out of. Simple physics and your own experience lets you known that the heavier something is, the more effort (and hence more fuel) is needed to get it moving. This is why the Volkswagen XL.1 is made out of light-but-tough carbon fibre-reinforced plastics. The makers say that this car is only 23% steel, with the rest being made from all sorts of things, including wood supports in the dashboard. The Volkswagen XL.1 has thinner windscreen glass and a load (or perhaps not a load) of other ways to save weight here and there. The end result is a car that weighs about 800 kg.
Number three is, of course, the engine. I guess nobody’s going to be really surprised that the Volkswagen XL.1 is a hybrid vehicle, as this seems to be the way things are going these days. When it’s not using the battery (20 kW power and 140 Nm torque), the vehicle runs on a little (800 cc = 0.8 litre) turbocharged diesel unit that pops out 35 kW of power and 120 Nm of torque. In the performance stakes, it does nought to the ton in 12.7 seconds and a top speed of 160 kmh (limited). It’s not a racing car, but if the new emphasis on fuel efficiency rather than raw power continues, this won’t really be seen as a downside. This is the same engine that you’ll find in the new Volkswagen Up.
The Volkswagen XL.1 is entering production, being made in the same German factories as the Volkswagen Golf and the Porsche Boxter. Alas, only a limited number will be made and we are unlikely to get any here Down Under any time soon. Let’s keep our fingers crossed and hope that production will eventually become more widespread.
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