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When coal is burned in the boiler of a power plant, it is not just set alight like the coal in a domestic fireplace. It has to burn fast¾ for power is the energy converted per second, and it has to burn completely¾for efficiency is a measure of how much energy is usefully harnessed rather than lost. The efficient combustion of coal needs the "three T's"¾temperature high enough to ignite the fuel, turbulence vigorous enough for the fuel constituents to be exposed to the oxygen of the air, and time long enough to assure complete combustion. The three requirements are best met by pulverized coal, which is forced into the furnace by an air stream under high pressure and is ignited as it enters through a nozzle. Pulverized coal was introduced in the early 1920's and represented a major advance over the previous stoker firing.
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How much oxygen is needed to sustain combustion?
Oxygen is required to sustain combustion as it is the oxidizer that allows for the chemical reaction with the fuel. The exact amount of oxygen needed depends on the type of fuel being burned, as different fuels have different oxygen requirements for combustion. In general, combustion requires a sufficient supply of oxygen to ensure complete oxidation of the fuel.
What 3 things are needed for combustion to occur?
the organic (or certain inorganic) compounds oxygen (generally excess) heat
What is needed for a combustion to occur?
Combustion requires three main components: fuel, heat, and oxygen. The fuel provides the source of energy, heat initiates the reaction, and oxygen serves as the oxidizer for the combustion process to occur. Without any of these components, combustion cannot take place.
What 3 elements are required combustion?
The three elements required for combustion are fuel, oxygen, and heat. Fuel provides the substance to burn, oxygen is the oxidizing agent to react with the fuel, and heat initiates the combustion process by raising the temperature of the fuel to its ignition point.
What is the combustion triangle?
The combustion triangle is a concept that represents the three elements necessary for a fire to occur: fuel, heat, and oxygen. These elements must be present in the right proportions for combustion to take place. If one of these elements is removed or changed, the fire will extinguish.
What are 3 requirements to sustain combustion?
Three requirements to sustain combustion are fuel (such as wood or gas), oxygen (from the air), and heat (a ignition source to initiate the reaction). These elements must be present in the right proportions for combustion to occur and be maintained.
What three letter word denotes the residue of combustion?
The residue of combustion is called ash.
What does combustion require?
Combustion requires three main components: fuel, oxygen, and heat. These three components are necessary for the chemical reaction that produces heat and light to occur during combustion.
What does a combustion reaction does?
A combustion reaction involves the three reactants from the fire triangle, heat, oxygen, and fuel.
What three things are needed to initiate and sustain combustion?
A source of Fuel Compression and an Ignition source
Why cant you use carburetor in diesel engine?
Stoich for combustion of deisal is different and pressure required as well. Carbs only work with combustion point and air requirements of gas.
What are three by products of combustion?
The general equation for combustion is: ACxHy + BO2 --> CCO2 + DH20 Sometimes when a product does not burn efficiently CO is produced.
What are the minimum and maximum requirements when drawing a triangle?
Minimum and maximum requirements: three straight lines meeting pairwise. Minimum and maximum requirements: three straight lines meeting pairwise. Minimum and maximum requirements: three straight lines meeting pairwise. Minimum and maximum requirements: three straight lines meeting pairwise.
What are the 3 requirements are needed to make fire?
To make fire, you need three things: fuel to burn, heat to ignite the fuel, and oxygen to sustain the combustion reaction. These three components combine to create a self-sustaining chemical reaction known as fire.
What are the three products of combustion?
heat, smoke, toxic gases
What are the 3 modes of combustion?
The three modes of combustion are complete combustion, incomplete combustion, and smoldering combustion. Complete combustion occurs when a fuel burns in sufficient oxygen, producing carbon dioxide and water. Incomplete combustion happens when there isn't enough oxygen, resulting in carbon monoxide and soot as byproducts. Smoldering combustion is a slow, flameless form of combustion that occurs at lower temperatures, often seen in materials like charcoal or wood.
What are the three ways that chemical bonds form?
by combustion, synthesis, and decomposition
