ENVIRONMENTAL AUDIT OF OUR SCHOOL LORENZO DA PONTE

ELECTRIC ENERGYHEATINGTRANSPORT PAPERWATERWASTE

Comenius project “Let’s know, let’s love, let’s protect our environment”

OUR PROJECT

Investigate CO2 production related to our lifestyle, in order to reduce CO2 emissions.

The 6 main aspects are:

ElectricityWaterHeatingPaperTransportWaste

The tasks

3^ ACollecting dataSaving behaviours

3^ EFinding out formulasExcel Calculation

Class 3^ E

Our final product

ELECTRIC ENERGY

When we use less electricity,

power plants produce less kWh

therefore, carbon dioxide emissions are reduced

Electricity impacts on Carbon Dioxide production

FORMULA

Kg of CO2 Kwh 0,72

1 kWh

= X

0,72 kg CO2

Water

How does water consumption produce CO2?

Water is pumped and brought to our

houses

After the use, water is brought to the depuration

plants

At the end the depurated water is restored to the

natural cycle.

ENERGY NEEDED

0,72 kg CO2

1 kWh

1 m3

Quantity of utilized water

x

0,5 kWh/kg water

x0,72 kg CO2 /kWh

Formula

Heating in our school is due to methan

burning

C E

Methan 8250 kcal/m3 0,2338 gCO2/kcal

Howdoes heating produce CO2?

2- E = emission of CO21- C = amount of energy prduced by the fuel

Quantity of utilized methan

Howdoes heating produce CO2?

X8250 kcal/m3

:

1000

0,2338 gCO2/kcalX

PAPER

Paper production needs:

Howdoes paper consumption

produce CO2?

EnergyChemical products Cut of trees

TYPE OF PAPER KGS OF CO2 PRODUCED

White paper 1,7

Recycled paper 0,75

Kgs of white paper

FORMULA

x 1,7 =Kgs of CO2produced

Kgs of recycled paper

x 0,75 = Kgs of CO2 produced

+

=

TOTAL KGS OF CO2

MEANS OF TRANSPORT

Means of transport produce carbon dioxide through fuel burning

HOW DO MEANS OF TRANSPORT PRODUCE CO2?

EMISSIONS FROM SOME MEANS OF TRANSPORT F

Car 237 (gCO2/km)

Motorcycle 90 (gCO2/km)

Bus 75 (gCO2/passenger/km)

Train 45 (gCO2/passenger/km)

Tube 22 (gCO2/passenger/km)

Tram 33 (gCO2/passenger/km)

Plane 150 (gCO2/passenger/km)

Bike 0 (gCO2/passenger/km)

Walking 0 (gCO2/passenger/km)

75 gCO2/passenger/km

237 gCO2/km

x km

FORMULA

Why?

Turn the g to kg

CO2 emissions x kilometers covered: 1000

Waste

Responsible for emissions from waste is especially the methane that is released from biodegradable garbage disposed in landfills. The fraction that is not captured to produces energy, spreads into the atmosphere.

Waste

1 kg of garbage

0,031 kg of methan

1 kg Of methan

21 kg of CO2

Waste

1 kg of waste

1 kg of methane

produces

Produces the same greenhouse effect of

Kg waste x

Kg of methane produced from school x

Kg of Co2 produced from school

21 kg of CO2

Kg waste 0,031 kg of methane 21 kg of CO2

0,031 kg of methane

Waste

x x