Law, Mujumdar - Energy Savings in Drying of FVF
Performance of a dryer type is dependent on its sub-classification, geographical lo-
cation, ambient condition, operating conditions, maintenance etc. Thus, copying flow-
sheets from other plants elsewhere done at different times should be avoided since it
does not guarantee the same drying performance. Selection of energy efficient dryer is
dependent on the properties and quality of feed / product; relative cost of fossil fuel /
electricity; ability to model / control dryer and possibility of using new technique, e.g.
heat pump drying; dielectric drying; pulse combustion drying; superheated steam dry-
ing, etc. In addition, various methods can be applied to minimize the energy consump-
tion of a dryer such as applying heat recovery methods, use of phase change material,
use of appropriate drying strategy etc. Further to this, good housekeeping such as good
insulation or elimination of leakage, etc as well as energy audit should be practiced to
minimize heat loss.
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