How does combustion take place?
Combustion takes place when fuel, most commonly a fossil fuel, reacts with the oxygen in air to produce heat. The heat created by the burning of a fossil fuel is used in the operation of equipment such as boilers, furnaces, kilns, and engines.
In a spark ignition engine, the fuel is mixed with air and then inducted into the cylinder during the intake process. After the piston compresses the fuel-air mixture, the spark ignites it, causing combustion. The expansion of the combustion gases pushes the piston during the power stroke.
- So if we have carbon and we oxidize it to form carbon dioxide, the reaction of carbon with oxygen will release a lot of energy in the form of heat. Therefore, oxygen is necessary for burning because that is how we define burning.
- There are 3 classes of common fires and 2 specialty classes. Fires are classified into 5 groups: CLASS A: Class A fires involve common combustibles such as wood, paper, cloth, rubber, trash and plastics. They are common in typical commercial and home settings, but can occur anywhere these types of materials are found.
- The internal-combustion engine offers a relatively small, lightweight source for the amount of power it produces. An important device based on the internal-combustion engine is the automobile. In all internal-combustion engines, however, the basic principles remain the same. Fuel is ignited in a cylinder, or chamber.
An Explanation of what happens during Combustion Reactions. Combustion is the process of rapid oxidation of a substance accompanied by the simultaneous evolution of heat and, usually, light. In the combustion of common fuels, the process is a chemical reaction with atmospheric oxygen.
- During complete combustion carbon and hydrogen combine with oxygen (O2) to produce carbon dioxide (CO2) and water (H2O). During incomplete combustion part of the carbon is not completely oxidized producing soot or carbon monoxide (CO).
- Combustion takes place when fuel, most commonly a fossil fuel, reacts with the oxygen in air to produce heat. The heat created by the burning of a fossil fuel is used in the operation of equipment such as boilers, furnaces, kilns, and engines.
- Combustion is an example of an exothermic reaction- you can feel the heat given off if you get too close! This graph shows that energy has been released and Delta H (energy change) is negative. The reactants have more energy than the end products.
Updated: 3rd December 2019