Heat transfer by ______________ is almost absent in case of fluidised bed drying operation?
Correct answer: A. Radiation
- A. Radiation
- B. Conduction
- C. Convection
- D. Both B. & C.
Explanation
In a fluidised bed dryer, vigorous particle movement makes convection the dominant heat-transfer mode, while radiation contributes very little. Thus heat transfer by radiation is considered almost absent.
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