What question are we trying to What question are we trying to answer?answer?

How will BSF make a

difference to the

environment?

Why Should Schools in Lewisham Reduce their Carbon Footprints?

The world is in serious danger of global warming. As you may already know polar ice-caps are melting and the polar region has become a serious concern.

The UK is one of the biggest producers of CO2 in the world

That’s why we think Lewisham should lead the way for the new “carbon neutral” schools

FiguresFigures

Compared to India, an LEDC, in the last 50 Compared to India, an LEDC, in the last 50 years:years:

• England emitted 29.73 billion tonnes of COEngland emitted 29.73 billion tonnes of CO22

• India emitted 17.58 billion tonnes of COIndia emitted 17.58 billion tonnes of CO22

• England per person – 500 tonnes England per person – 500 tonnes

• India per person – 17 tonnesIndia per person – 17 tonnes

BSF will………………BSF will………………

•Help us to reduce our Help us to reduce our impact on the environmentimpact on the environment

•Reduce our carbon Reduce our carbon footprintfootprint

•Teach energy conservation Teach energy conservation from a young agefrom a young age

•Utilise more renewable Utilise more renewable resourcesresources

Fly Ash BricksFly Ash Bricks

• Fly ash bricks are made from fly ash which is coal fired Fly ash bricks are made from fly ash which is coal fired power plant waste.power plant waste.

• They can pull toxic metals/gases from the otherwise They can pull toxic metals/gases from the otherwise clean airclean air

• They cost an estimated £1100.70 per tonne (which is They cost an estimated £1100.70 per tonne (which is 1000 bricks).1000 bricks).

Isonat InsulationIsonat Insulation

• It is made from hemp and recycled cotton fibres.It is made from hemp and recycled cotton fibres.

• When it is growing it absorbs carbon dioxideWhen it is growing it absorbs carbon dioxide

• It is fire retardant.It is fire retardant.

• Prices are about £8.30 for 100mm thick----£6.25 for Prices are about £8.30 for 100mm thick----£6.25 for 75mm thick----And £4.16 for 50mm thick75mm thick----And £4.16 for 50mm thick

ADVANTAGES

Good eco friendly design

Made out of recyclable materials such as Steel.

DISADVANTAGE

Very costly to make.

Looks like a giant cheese

ADVANTAGES

Uses Steel

No concrete needed

DISADVANTAGES

Doesn’t fit purpose

IDEA 1 IDEA 2

THE TWO INITIAL

DESIGNS

But for our final design we decided to merge both ideas and this is what came out.

The Gym…The Gym…

What is Geothermal What is Geothermal heating?heating?

• Geothermal heating is Geothermal heating is eco friendly & relies eco friendly & relies on the Earth’s on the Earth’s natural thermal natural thermal energy energy

• A geothermal heat A geothermal heat pump system utilizes pump system utilizes the earth’s heatthe earth’s heat

• All year a water-All year a water-source heat pump source heat pump utilizes available utilizes available heat in the winter heat in the winter and puts heat back and puts heat back into the ground in into the ground in the summer. the summer.

• This is already being This is already being used in Norburyused in Norbury

SELCHP Waste PlantSELCHP Waste Plant•Takes 10% of London’s rubbish and make Takes 10% of London’s rubbish and make it into approx 35 MW of energyit into approx 35 MW of energy

•They take rubbish which is then burnedThey take rubbish which is then burned•The steam powers turbines which supply The steam powers turbines which supply the factory with electrical power the factory with electrical power which we will buy to power the schoolwhich we will buy to power the school

•The steam then cools down and forms The steam then cools down and forms heated water then they store the waterheated water then they store the water– This could be used to heat our buildingThis could be used to heat our building

METHOD OF ELECTRICITYMETHOD OF ELECTRICITYWIND TURBINE:WIND TURBINE: Mean wind speed in London is 5mphMean wind speed in London is 5mph

Our school will have 1 turbine as it Our school will have 1 turbine as it will limit costs will limit costs

Electricity generated by wind Electricity generated by wind turbines won’t dirty the air we turbines won’t dirty the air we breathe or emit pollutant, that breathe or emit pollutant, that means less smog, less acid rain and means less smog, less acid rain and fewer greenhouse gas emissionsfewer greenhouse gas emissions. .

For a wind turbine of a 26ft blade radius we calculated how much energy it would produce at 5mph

School would need 20500 kwh per month power output from the turbine is 500 kwh per month

500 ÷ 20500 x 100 = 2.4% = Amount saved

SCHOOL PAYS PER YEAR ( NATIONAL GRID ) = £20000

SAVED ( THROUGH TURBINE ) = £500 PER YEAR

COST OF TURBINE = £20000

YEARS TO RECOUP MONEY = 40 YEARS

40 years is a long time to recoup money but we feel that the environment is more important

““The Living Roof”The Living Roof”

Meet the Building!!Meet the Building!!

THE ROOFTHE ROOF

• Why have we chosen a living roof ?Why have we chosen a living roof ?

• Eco-friendly Eco-friendly

• Reduces our carbon footprintReduces our carbon footprint

• Uses all available space Uses all available space

• Educational tool Educational tool

• Resources such as fruit or Resources such as fruit or vegetablesvegetables

• Acts as insulationActs as insulation

UniformUniform

• We have decided to utilise a uniform We have decided to utilise a uniform made entirely of hemp. This will be made entirely of hemp. This will be both, environmentally friendly and both, environmentally friendly and durable. As well as cost effective and durable. As well as cost effective and practical. practical.

We have made our We have made our design……design……

•REALISTICREALISTIC

•ENVIRONMENTALLY ENVIRONMENTALLY FRIENDLYFRIENDLY

•COST EFFECTIVECOST EFFECTIVE

•DESIRABLEDESIRABLE

With Thanks To…With Thanks To…

• The Blue Team and All The Blue Team and All Teachers/Members of staff who have Teachers/Members of staff who have contributed throughout the week contributed throughout the week