Construction of an indirect solar dryer with a photovoltaic system and optimised speed control

Abstract

With a radiant energy of 4.5 kWh/m2 (International Power Plant in Iran), Iran has a good potential for using solar thermal energy to dehumidify products in the agricultural and pharmaceutical industry. In fact, drying provides the possibility of restoring surplus products due to its longer shelf life, for future use. Indirect drying results are better results (nutrition and taste) than direct drying. Indirect solar dryer today works in many countries in industrial and lower levels of humidity and is quite satisfactory. It should be noted that the electronic and control system is embedded in data creation and air flow when necessary. The solar dryer is a device that performs the drying of different products with the use of renewable energies, in other words, performs dehumidifying operations without even using 1 W of electricity from the city.