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Combustion - Coggle Diagram
Combustion
Materials
Fuel types: diesel, petrol, bioethanol - Spirit burner
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Products
Carbon Dioxide(CO2)
Harmful cause dizziness, headache, tiredness
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Nitrogen Dioxide(NOx)
Cause lung disease, effect senses reduce smelling ability.
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Factors to investigate
pH to determine CO2
METHOD
This can be done by starting all trials of each fuel type with a constant pH (for example, 7 or 8), and then tracking the amount of mass and time needed to lower the pH. To achieve this, add a 1-2 drop of universal indicator to the water before igniting the spirit burner, making sure to use the same quantity of indicator across all tests. It is necessary to take measurements of the spirit burner's mass both before and right away after the desired pH has been reached.
LIMITATION
Since the experiment will be carried out in an open system, there is a potential that gas will escape and obstruct accurate CO2 measurements.
Collect and weight soot
METHOD
A small amount of steel wool could be measured and put into a cylindrical tube to collect soot and the steel wool will be reweight after period of time or by measuring the initial mass of a wire gauze and then burning the fuel under for period of time and measure the final weight of the wire gauze
LIMITATION
It's possible that not all of the soot produced during the experiment will be absorbed into the wire gauze, resulting in measurements of less soot than the fuel actually produced. In addition, steel wool can gather soot, but not all of it will adhere to the steel wool, making it impossible to determine the correct amount.