ENVIRONMENTAL AUDIT OF OUR SCHOOL LORENZO DA PONTE ELECTRIC ENERGY HEATING TRANSPORT PAPER WATER WASTE Comenius project “Let’s know, let’s love, let’s protect our environment”
1 environmental audit 3 e
Aug 07, 2015
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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
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