... but should you want one?
By Guy Procter
By Guy Procter
Suzuki's hydrogen-powered Burgman scooter has become the
first fuel-cell vehicle to get European Whole Vehicle Type Approval - a
license to start mass production. Hydrogen power might be a technological cul-de-sac but
various governments, including our own, are determined to make it as long a one
as Brookside. Hydrogen fuelling stations are being incentivised into
existence from London
out, and Suzuki looks set to be the first bike manufacturer to make hay.
An arm-wrenching ride the 11bhp scoot is not (as we
discovered when we rode it last year), but as far as securing Suzuki's future
goes, let's just say the high-ups in Hamamatsu are a lot more excited about
this than the next Hayabusa. Co-developed with British firm Intelligent Energy, the
hydrogen-electric hybrid Burgman is vibrationless, silent and only emits a
barely-perceptible breath of water vapour from its tailpipe to confirm
something is happening.
How it works
And what is happening? Hydrogen is being ducted from a high-pressure tank in
the scooter's underbelly to a fuel cell stack little bigger than a shoe box
under the seat. It isn't being burned; instead an electro-chemical reaction
is separating the hydrogen atom's proton and electron - like horses from their
coach - and making them run around an electrical circuit, producing energy. It's happening simultaneously in scores of fuel cells -
stacked inside their container like After Eights in a box - resulting in an
electrical power output of around 2.5KW - or a little over 3bhp. Some of that power is being fed directly to the electric
motor attached to the back wheel, some is charging a lithium-ion battery which
provides the balance of drive required for accelerating - around 11bhp in all. It isn't the stuff of petrolhead dreams, but it's right on the money for a
125-class commuter.
Why they WILL be made
Whether or not you're bought-in to a post-petrol future (and most enthusiast
motorcyclists aren't) doesn't matter. Whether vehicular emissions are to blame
for global warming or not doesn't matter. Even whether hard-to-handle hydrogen
is feasible as a widespread replacement for petrol - and there are many
well-founded reasons why it is might not be - doesn't matter either. The decision to legislate old-fashioned combustion-engines
out of existence was taken years ago - and whether it was the right decision or
not, governments including our own are irrevocably committed to making it
right. Against that background, Suzuki's pragmatic approach is very
clever. Britain
and many other governments have signed up to the International
Partnership for the Hydrogen Economy. London has promised
to have at least six hydrogen refuelling stations running by the end of the
year, and the US has committed
over £1bn to make hydrogen more readily available to motorists.
Better than electric?
Then there's the competition - all-electric battery-powered machines cresting a
wave of hype thanks to TTXGP. The 40-mile range, 8-hour charge time, heavy
and expensive batteries of all-electric bikes are a hell of an
inconvenience. Suzuki says it made the fuel cell Burgman with the idea that
commuters wouldn't have to change their habits at all - and by the time it or
something like it hits production (2015 is whispered) that may be true, at
least for Londoners. The Burgman powered by an evolution of the lightweight
air-cooled fuel cell motor used in 2007's Crosscage concept - but with double
the tank pressure and hence capacity (10,000psi containing about 500g of
hydrogen gas), built to a design and price that's entirely production feasible. Suzuki says it expects fuel cell bikes to carry a 'small
premium' over petrol equivalents when they hit the market.
Practical propulsion?
Suzuki is stretching a point when it claims the Burgman could reach Edinburgh
on a single fill-up - its 220mph claimed range is valid only at a 20mph
average - but in its natural habitat such as central London, say, where
average speeds are a glacial 9.9mph it has a lengthy stride. Even at brisker out-of-town speeds (40mph is about the limit
right now) it should clear 100 miles. And the fact it can achieve that range
without a huge payload of batteries is a huge plus. The fuel cell Burgman weighs 'about 170kg' says Suzuki -
not much more than the petrol version, at 148kg dry, does when fully fuelled.
The fuel cell starts up in under a second, it has a claimed 99.9% reliability
and it's a dream to service - the only part that needs attention is its air
filter, and there's no clutch or gearbox. It takes five minutes to fill the tank. Hydrogen should -
mile for mile - cost no more than petrol to buy when it becomes available, and
in fact will likely enjoy a substantial tax advantage.
Is it safe?
The words 'hydrogen' and 'Hindenburg' are rarely out of each other's company.
But its risky reputation is unwarranted says Suzuki. The fuel cell Burgman's gas tank has withstood
bullet-attack, fire and high-speed impacts on its way to gaining EU
type-approval. Spilled hydrogen disperses rapidly and is harder to ignite after
only a few seconds than petrol.
Hydrogen's assured future
Is this the first of a new wave machines that will fill MCN's pages in 2020?
Yes and no. Hydrogen may never fulfil the dreams of those who envisage a
carbon-free 'hydrogen economy', but it doesn't need to be THE future to have A
future. There are likely to be many answers to our 'carbon problem',
and hydrogen is already produced in large quantities as an industrial
by-product and currently wasted. There are 40 million scooter and commuter sales a year of
which Suzuki need only grab a near infinitesimal proportion for it to be
worthwhile economically. And it's laying-in experience in a field governments
are gold-plating a future for, and which rivals appear to be neglecting. As for a hydrogen-stuffed MCN in 2020, if fuel-cell
commuters are the only thing available, it's unlikely there'd be a community of
enthusiast bikers for the paper to serve. But neither we nor Suzuki anticipate that. They've simply
opened a new front in the war to defend pleasurable personal mobility that is
likely to wage for the rest of our riding lives.
Source : http://www.motorcyclenews.com
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