Page 161 - Low Temperature Energy Systems with Applications of Renewable Energy

Heat pumps in the drying industry 151

Fig. 4.17 Multi-stage HPD with a fluidized bed.
reached were that the high efficiency these technologies led to an increase in pro-
ducers’ confidence in heat pump drying technologies and to a significant increase in
the number of installed HPD with a specific moisture removal coefficient of
500e1000 kg per day.
In the country of Georgia, a heat pump plant was put into operation at the Sumtretsk
tea-drying plant [42]; a schematic of the installation is shown in Fig. 4.18.

Fig. 4.18 HPD process flow diagram for heat supply in tea leaf drying.