Engine_2014 : Steam Plants - 236/1951
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| Carbonization of the conductive surfaces of a fuel oil heater results in reduced heating capacity because __________ . |
| A) a fluid film layer covers the solid contaminants and increases heat transfer |
| B) the relative velocities of the fluids must be decreased causing a corresponding loss of heat transfer |
| C) the thermal conductivity of solidified contaminants is poor |
| D) radiational heat transfer becomes severely impaired |
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