Fuel injectors in heavy fuel oil systems are equipped with cooling to reduce ______.

The cooling of fuel injectors in heavy fuel oil systems primarily serves the purpose of reducing carbon accumulation on the nozzles. Heavy fuel oil can create higher temperatures in injector components due to its dense and viscous nature, leading to the combustion process producing more carbon deposits. These carbon deposits can clog the injector nozzles and negatively impact their performance, leading to inefficient fuel spray patterns and reduced engine efficiency.

By implementing cooling mechanisms, the injectors are maintained at appropriate temperatures, thereby minimizing the thermal stress that contributes to carbon buildup. This cooling helps ensure that the injectors remain clear and functional, which is crucial for optimal engine operation and performance. Maintaining clean injectors allows for better atomization of the fuel into the combustion chamber, promoting more complete combustion and reducing emissions.