Explain the sources of air leakage in condenser.
Sources of air leakage in condenser
1. Air leak through joints and packing. Air leaks into condenser as pressure inside falls below atmospheric pressure.
2. Air also comes in condenser with the steam. The feed water supplied to the boiler contains certain amount of air dissolved in it. The dissolved air gets liberated when steam is formed and is carried with the steam into the condenser.
3. In jet condensers dissolved air in the cooling water enters the condenser. The dissolved air gets separated at low pressure in the condenser
4. Air leaks if any bypass seal is broken.