Drying room
A schematic diagram of geothermal drying room is shown Figure 5.
Hot spring flows through a piping tube at point 1 to a heat exchanger at
point 2. A blower at point 3 is used to drive low temperature air through
the heat exchanger to be hot air at point 4. The high temperature heat
is flowed to drying area, where agricultural products are contained
at point 5. After that hot air transfers heat to the products, the air
temperature will decrease while the air humidity will increase. For
reducing the air humidity, the fresh air from outside is conducted to
reduce the air humidity in the drying room via a small window at point
6 while the high humidity air is released to the ambient via a top duct
at point 7.