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In order to burn a fuel completely, which of the following basic conditions must be fulfilled? 1. Supply enough air for complete combustion of fuel. 2. Secure low turbulence for thorough mixing of fuel and air. 3. Maintain a furnace temperature high enough to ignite the incoming fuel air mixture. 4. Provide a furnace volume large enough to allow time for combustion to be completed. Select the correct answer using the code given below:

In order to burn a fuel completely, which of the following basic conditions must be fulfilled? 1. Supply enough air for complete combustion of fuel. 2. Secure low turbulence for thorough mixing of fuel and air. 3. Maintain a furnace temperature high enough to ignite the incoming fuel air mixture. 4. Provide a furnace volume large enough to allow time for combustion to be completed. Select the correct answer using the code given below: Correct Answer 1, 3 and 4 only

Explanation:

Combustion:

It is an exothermic process that releases light and heat. It is supported by oxygen. If oxygen is available in a sufficient amount then complete combustion is achieved otherwise partial combustion occurs.

Following things are required to achieve combustion:

  • Supply enough air for complete combustion of fuel.
  • Maintain a furnace temperature high enough to ignite the incoming fuel-air mixture.
  • Provide a furnace volume large enough to allow time for combustion to be completed.
  • High turbulence is needed for the proper mixing of fuel and air so that it can be burn completely.

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