Resumen
The invention describes a solar dryer configured to extract a volatile substance contained in a product using a heat transfer gas that does not undergo phase change, comprising: a compressor (1) configured to compress a flow of heat-carrying gas connected to its low-pressure side ; a turbine (2) mechanically coupled to the axis of the compressor (1) and whose high-pressure side is connected to the high-pressure side of the compressor (1), so that the turbine (2) receives the flow of compressed heat-transfer gas and obtains work from its expansion; a solar collector (3) arranged on the high-pressure side of the turbine (2) to heat the flow of compressed heat-transfer gas; a drying device (4) disposed downstream of the solar collector (3) to receive the flow of heated heat-transfer gas to evaporate and entrain the volatile substance contained in the product. (Machine-translation by Google Translate, not legally binding)