An Experiment on Wooden-Biomass Drying System Using a Solar Collector and a Greenhouse

This paper describes results of experiments focusing on drying wooden biomass with simple drying devices that used solar collector. Moisture content of tested wood chip changed from 50%-w.b. to 25%-w.b. over 7 days during winter. The total heat loss from the drying system accounts for 30% to 45% of the total solar heat collection. Even with insulation for the heater bed, the heat loss remains significant at 15% to 30%. In case of “without insulation”, heat loss from air mat decreases to 50% in comparison with to “without insulation”.