Cranfield
University is at the heart of an ambitious and highly innovative collaborative
attempt to produce the world’s first high-performance fuel cell powered
sports car.
Reducing emissions to nothing more
harmless than water vapour, the all-British affair will use a unique approach
to tackle the weight, design and market issues so restrictive for successful
fuel cell powered cars by adapting the car to fuel cell technology rather
than the cell to the car.
The team hope to have a prototype
based on the classic sleek lines of the Morgan Aero Eight within two years
and a roadworthy efficient high performance fuel cell sports car after
two and a half years.
The Department of Trade and Industry
will provide approximately half the £1.9 million needed to develop
the LIFECar.
The rest of the funding will come
from the partnership behind the car, made up of legendary British sports
car manufacturer, the Morgan Motor Company, Cranfield University, University
of Oxford, QinetiQ, BOC and OSCar Automotive.
Although the project was officially
launched only days ago, it really began almost three years ago when Hugo
Spowers of OSCar had a conversation with Charles Morgan, corporate strategy
director of the Morgan Motor Company.
Professor of Life Cycle Engineering
at Cranfield, Stephen Evans, and others like Hugo Spowers of OSCar have
been working on it since the beginning of 2002.
Spowers said: “This project is the
first fruit of a great deal of work on the whole system design of fuel
cell powered vehicles.
“We hope to be able to demonstrate
that the perceived barriers to the adoption of hydrogen-fuelled motoring,
the high costs of fuel cells and hydrogen storage are, if not bogus, much
less of a problem than conventionally thought.”
The lightweight element of LIFECar
will be crucial to its success.
A composite-bodied, direct-hydrogen
fuel cell car, driven by an electric motor in each of the four wheels using
regenerative braking to charge a bank of capacitors for re-use later is
key.
Prof Evans said: “The primary goal
of the project is to prove fuel cells as a source of power for the car
and to deliver fantastic efficiency in a reasonable package.
“It is a very unusual way of designing
cars because there is no ‘top down’ design when individuals go and do their
bit, come back and put it together with the other components.
“We have to make the car very very
light, which in turn will enable us to make the fuel cell lighter, which
should then help us reduce the weight of the car further. Overall the car
will be at three times the efficiency of existing fuel cell cars.”
LIFECar will be powered by a QinetiQ-made
fuel cell, which converts hydrogen and oxygen taken from the air around
it into electrical energy.
Clean, quiet and economic, the car’s
power system will be incredibly efficient, producing significant improvements
over current fuel cell prototype vehicles, with the fuel cell powering
four separate electric motors, one at each drive wheel.
Regenerative braking and surplus
energy will be used to charge ultra-capacitors, which will release their
energy when the car is accelerating.
This architecture will allow the
car to have a much smaller fuel cell than is conventionally regarded as
necessary: it will only be as large as is required to provide cruising
speed, approximately 24 kW, as opposed to around 85kW proposed by most
competitor systems.
Ian Whiting, business development
manager for QinetiQ, said: “LIFECar is about catching the first big wave
in the energy revolution, which is set to transform the motoring industry
in the same way that the computer industry was transformed by the personal
computer decades ago.”
Cranfield’s principal res-ponsibilities
are twofold: Cranfield University Systems will provide simulation, on-board
computing and control of the fuel-cell hybrid powertrain and is also responsible
for analysis of the integrated design process used; it will also be vehicle
controller and control algorithm, together with modelling software.
Prof Evans said: “Cran-field University
is developing computer simulation models for the main vehicle components
such as the fuel cell, the hydrogen storage system and the electrical machine.
“These models will allow University
engineers to predict the performance of the vehicle and its environmental
impact long before any physical components have been manufactured and tested.
“These models will then be used to
develop the sophisticated control software and electronics, which are necessary
to integrate and manage the vehicle’s on-board hydrogen and electrical
power systems.
“Cranfield University will also be
acting as ‘project observer’ to ensure that the design techniques used
are made known to others.”
BOC will develop the hydrogen refuelling
plant; Morgan will provide the car platform and assemble the final concept
car; Oxford is undertaking the design and control of the electric motors;
OSCar is responsible for overall system design and architecture; QinetiQ
is developing the Proton Exchange Membrane Fuel Cell (PEMFC).
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