BIKERS WEBSITE HOME
FEATURES @ www.dirtybiking.co.uk

The Future of Dirt Bikes - June 2008

 
The Future of Dirt Bikes 

A Great Bike, But Too Quiet !!!
The world's first proper hydrogen-powered bike could be fitted with an artificial "vroom" because of worries its silence might be dangerous.

 
A prototype ENV was unveiled in London earlier this month.

A British firm unveiled plans for the ENV - world's first purpose built fuel cell motorcycle ahead of any of the leading automotive or bike companies.  

The ENV bike is the creation of Intelligent Energy, a British energy solutions company, is fully-functioning and has been engineered around Intelligent Energy's world-beating CORE fuel cell.  The fuel cell is completely detachable from the bike, and is claimed to be a radically compact and efficient fuel cell capable of powering anything from a motorboat to a small domestic property!

The ENV motorcycle offers a glimpse of 'things to come'. Intelligent Energy's CEO Harry Bradbury said, 'people will be able to use a bike like ENV to leave work in an urban environment, drive to the countryside, detach the CORE and attach it to another vehicle, such as a motorboat, before going on to power a log cabin or caravan with the very same fuel cell, which could then be re-charged from a mini hydrogen creator, the size of a shoebox.'

 

But Yes, You Just Can't Win...
It's true, manufacturers are actually working on fitting an artificial engine sound!

Anti-noise campaigners said they welcomed the prospect of a motorbike without the usual excruciating roar.

It has been suggested that a fake engine noise device, which could be switched off, would help alert road users.

The motorbike, known as an Emissions Neutral Vehicle (ENV), currently has a top speed of 50mph (80km/h), a range of at least 100 miles (160km) and can run continuously for four hours before the fuel cell needs recharging.

Apparently its water-vapour emissions are so clean that they are drinkable!

Mobile energy source

Dr Bradbury said the bike's detachable briefcase-size cell filled with high pressure hydrogen, could eventually be used as a mobile energy source, with the same cell used to power different objects. The prospect of producing mobile hydrogen energy from a variety of sources, including crops such as soya or sugar cane, could benefit remote communities or developing countries, where large electric grids were not economically viable.

This new ENV motorcycle is lightweight, streamlined and aerodynamic. 
Plus it boasts a performance that outreaches any existing electrical bike. In
an urban or off-road environment, it can reach speeds of 50 mph.  It is also virtually silent (with noise emissions equivalent to an everyday home computer) and its emissions are almost completely clean. 

The current bike has no gears and is strictly defined as a motorcycle, although it feels to riders more like a very quick and responsive mountain bike.  'ENV is light, fast and fun', commented Seymourpowell director Nick Talbot. 

'It has good ground clearance, great off-road suspension travel and a very carefully considered power to weight ratio.  I have ridden motorcycles for years', he added, ' and, in the process of designing the bike, I have become a convert to fuel cell technology.  The bike is usable, useful and great-looking.  It was important on this project to demonstrate that new technologies don't have to be wrapped up in a dull product – engaging public imagination and enthusiasm is key.'

The Bikes Construction

The bike's primary frame and swinging arm are made from hollow-cast aircraft grade Aluminium.  At the bike's heart is a fully-integrated 1kw fuel cell generator providing power on demand directly to the drive-train. 

To enhance performance during accelerating, the fuel cell is hybridized with a battery pack to provide a 6kW peak load to the motor.  The result is a balanced hybrid concept which combines the main advantages of the CORE fuel cell, hydrogen storage and battery technology.

About the Fuel

  • Hydrogen 99.9% purity
  • Oxygen Taken from air
  • Hydrogen refuel time less than 5 minutes

Technology Facts

  • Fuel cells provide point of consumption power generation, removing costs and power losses associated with the transmission and distribution of electricity.
  • Fuel cells can be built to match demand and are efficient at both small and larger scale.
  • Fuel cells have higher energy conversion efficiencies than most other technologies: 45-55% of energy converted to electricity.
    (Petrol converts about 33%)
  • Fuel cells are easy to maintain as they have no moving parts.
  • Fuel cells produce zero emissions if hydrogen is used as a feedstock, and significantly reduced emissions if hydrogen is produced from reformation of hydrocarbon feedstocks.
  • Fuel cells are modular, you can keep adding cells like a sandwich up to whatever power you want!.
  • In the USA the government is so excited about this type of power development, it has pledged to spend more than £900m to help develop the technology and wants to see lots of hydrogen fuel cell cars on US roads by 2015.
ZERO speeds up...

Of course their are other 'Electric' dirt bikes out there and many are great fun (see video below), but none compare in real world terms to the ENV development future.

The Zero-X is a lithium ion battery-powered off-road bike that can be had for about $6,900. Zero Motorcycles is claiming a range of 40 miles and three hour recharge time. The bike weighs in at a mere 120lbs which means quick acceleration and nimble handling. Zero is working on a road-going version of the bike with a longer range and all the lights and other gear necessary for road use. In the meantime if you're into moto-crossing and want to avoid the noise and fumes of a traditional bike you might want to check out the actual riding review that CNET did as well as a video.

 

 

    

 If anyone wants to make comments or provide feedback, which we do
 love to hear (believe it or not!) - please use the normal 'Chat & Help Forum'.