Question 112Steam Plants - Assistant Engineer

The correct answer is B) reduced heating capacity in an operating heater. Condensate accumulation in the steam side of a fuel oil heater can lead to reduced heat transfer efficiency, as the water in the condensate has a lower thermal conductivity compared to steam. This reduced heating capacity can negatively impact the ability of the heater to effectively warm the fuel oil, which is necessary for proper atomization and combustion. The other options are incorrect because: A) Water contamination of the fuel oil is a separate issue not directly caused by condensate accumulation. C) Annealing of the heater tube bundles is not a likely consequence of condensate accumulation. D) Scale accumulation is a different problem that can occur in heaters, but is not directly caused by condensate buildup.