The team have been washed up with quite a store of usable items,
seem. Apart from getting off the island the other main preoccupation
is getting some sounds for the beach parties. The frame that has
was to be used for shelter. But hey! Who needs shelter? It can be much
more usefully employed as the infrastructure for a renewably powered
machine.But with all this going on, it could really earn its money by
getting everyone rescued as well………………..There
are some things, which must be done. And some things, which mustn’t.
The mission is to construct the ‘generators’ as efficiently
as possible and measure the output of power. We know that energy cannot
be created from nothing, that it cannot be destroyed either.Utilising
everyday concepts, there are five methods of practically demonstrating
the generation of energy:All of these components are to be mounted
a gantry. This gantry will be a prepared kit easily constructed so as
not to waste time.
Requirements for activity
- Perspex housing for water
wheel, allowing for connection to motor, water in and water out.
- A connection from this to
a relay, which allows a radio to be powered by the solar panel. Set
at a threshold amperage.
- Generator mounted on frame,
attached to bike, which is statically mounted, and the rear wheel is
adapted for turning the generator.
- Wind turbine connected to
pump on water butt for pumping water up to water tank on top of frame.
- Pulleys attached to frame
so that a falling weight will also charge, or turn, the generator.
is a competition as well as the opportunity to show your peers and your
teachers what a bunch of resourceful wizards you all are. In order to
have a fair scoring system all teams will be marked using the same criteria.
None of which are related to the weather. That just wouldn’t be
fair, now would it?You will be assessed on:-· the amount of power
generated from each measurable device· the efficiency of the application·
the time it takes to complete the overall objectives· some energy
related questionsThe solar panel, which is included, has a use. Except
in extremely overcast conditions it will produce power. However, that
would be too easy. You can not use the panel directly for all devices
which need power.The supervisors reserve the right to step in at any
if there is a difficulty or a misuse of some of the equipment.The supervisors
are responsible for measuring the output of the devices.In some instances
you have been presented with more than one device for a particular task.
You must assess which is the most efficient for the task in hand, by
means you deem necessary.
(clues, if you need them!)
- Get on your bike, use all
your might, and raise the water to a reasonable height.
- Take time to think about
the source the best one wins most points, of course.
- Using gravity and the water
flow try and make the radio go.
- The power for the radio
is about 93 million miles or so away from us at this very minute. Listen
to the tape, you just might win it. (Or something that can make use
- When the radio
plays assume it says “A ship is passing by”
- Raise the alarm at passing
ships using your weight but not your lips.
the Energy Challenge:The scoring system must be fair and absolute,
that is we can’t base the scoring on anything that may favour one
school one day and not the other schools on their days, e.g. sun based
scores etc. Points will be awarded on a fixed system. This the fairest
way. They will then be added up. The school with the most points wins.This
means it will be possible to have produced the highest output from a
piece of equipment, but still lose out because of the decisions made
on the way.
For example, there will be
3 appliances available to be attached to the bike, one of which is more
efficient than the others, one of which won’t actually work because
it is a starter motor. The teams can check out each one before making
their choice, but if they choose the best one first they get 10 points.
If they choose it second after having a go with one of the others they
get 5 points and third, they get 2 points.And similarly the nozzles for
the water wheel and the pulleys for the potential energy applications.Where
it is measurable the output achieved will be totted up. This will count
towards the overall total.Also measured is the time to pump the water
for the water wheel, this is basic human strength and energy. Not strictly
fair you might say, but measurable none the less.They will be scored
on how long it takes. If they don’t do it in two hours they have
5 points deducted. The school who does it the quickest will get 10 points.
But obviously can’t score that until they have all had a go.
many months of preparation, inspiration and perspiration the annual Energy
Challenge finally took place. It was organised by the West Wales ECO Centre
and sponsored by Energy Enterprise Ltd.Fishguard High School, Sir Thomas
Picton School and Ysgol Gyfun Dewi Sant undertook the Challenge at the
end of their Summer term. The staff from the Centre went into each school
on separate days with the assortment of equipment and props the participants
had to employ to the best of their ability in order to generate electricity
from a variety of sources.The challenge was for the teams to follow some
clues and work out how to generate energy for various tasks efficiently.
These tasks included: pumping water from ground level to a raised tank;
using this store of water to generate electricity to switch a relay for
a radio to play (powered by the sun); and using their own bodyweight to
sound an alarm bell. There were choices to be made regarding the devices
employed for the tasks, such as; which was the most suitable output nozzle
to spray water over a water wheel; which was the best generator to turn
for power for the pump; how to configure a pulley system so that it would
maximise the effect of a person’s weight pulling down on it and
thus turn the generator sufficiently.All of the participants rose to the
challenge admirably, each displaying ingenuity and technical expertise
in the different areas of work.It was a delight to watch them work out
the trickier problems. And a pleasure to see six months of planning come
to fruition with the enthusiasm which the schools displayed.The Challenge
was also a competition this year, with the prize being a small renewable
energy kit. Congratulations to Fishguard who carried the day by getting
the most points, awarded for efficiency and output. The prize consists
of a Renewable Energy Kit, worth about £500, for use in school projects