MIDTERM SLIDES

MT010

MIDTERM REVIEW

March 09th 2009

2.00pm - 8.00pm

Higgins Hall North

3rd Floor Hallway

Pratt Institute

Panels:

Carl Chu (pratt)

Ezio Blassetti (pratt)

Joseph Grima (director of storefront for art & architecture)

.. (robotics engineer)

.. (collegue)

SECTIONAL PROFILE

Carving the space of the usually rectagular profile of the train car. Adding elements that could fold and collapse. Multi-functional components.

S001

The collapsable space
self-sustaining planters, energy harvest on train roof

S002


The nested vehicle parks itself and recharges in its recepticle. The KERS technology is proposed in harvesting the kinetic energy and transforming it into battery power to run the service-vehicle.

preliminary sketch

THE COMPACTED SPACE
idea of the foldable, 'suitcase' wall

;plan

SUB-VEHICLE COMPONENT
mother train-car has a nested service vehicle of a smaller scale.

PRECEDENT: F1 Cars Kinetic Energy Recovery System

Formula 1 cars, including the Red Bull RB5, are set to get KERS, "an ingenious mechanical device that recovers wasted kinetic energy generated while braking, converting it into electric energy, which gets stored in a battery on the car's front."

source: http://www.techeblog.com/index.php/tech-gadget/f1-cars-to-get-kinetic-energy-recovery-system

KERS : KINETIC ENERGY RECOVERY SYSTEM

The Flybrid Kinetic Energy Recovery System (KERS) is a very small and light device that meets the FIA regulations for the 2009 season.






The key system features are:

A flywheel made of steel and carbon fibre which rotates at over 60,000 RPM inside an evacuated chamber
The flywheel casing features containment to avoid the escape of any debris in the unlikely event of a flywheel failure
The flywheel is connected to the transmission of the car on the output side of the gearbox via several fixed ratios, a clutch and the CVT
60 kW power transmission in either storage or recovery
400 kJ of usable storage (after accounting for internal losses)
A total system weight of 24 kg
A total packaging volume of 13 litres

source: http://www.flybridsystems.com/F1System.html

KINETIC ENERGY TO REGENERATIVE ENERGY

Regenerative Energy

Electric railroads may be powered from any source, including emission-free renewable energy, and in many areas with very little loss in transmission. Through "regenerative" breaking, an electric locomotive descending a grade also converts otherwise wasted kinetic energy into electricity that helps power other trains on the grid.

Kinetic Energy

The kinetic energy of an object is the extra energy which it possesses due to its motion. It is defined as the work needed to accelerate a body of a given mass from rest to its current velocity. Having gained this energy during its acceleration, the body maintains this kinetic energy unless its speed changes. Negative work of the same magnitude would be required to return the body to a state of rest from that velocity.

Kinetic energy for single objects is completely frame-dependent (relative). For example, a bullet racing by a non-moving observer has kinetic energy in the reference frame of this observer, but the same bullet has zero kinetic energy in the reference frame which moves with the bullet. The kinetic energy of systems of objects, however, may sometimes not be completely removable by simple choice of reference frame. When this is the case, a residual minimum kinetic energy remains in the system as seen by all observers, and this kinetic energy (if present) contributes to the system's invariant mass, which is seen as the same value in all reference frames, and by all observers.

source: wikipedia.com

CONSERVATION OF ENERGY

" Energy cannot be created or destroyed, but it can be converted from one form to another. "