Abstract: A system for roasting particulate material, such as coffee or cacao beans, grains, malt. The system includes a concentrated solar collector configured for heating a fluid; a heat storage device configured for storing heat of the heated fluid; a particulate material roasting device comprising a treatment compartment configured for receiving the particulate material, and at least one generation unit configured for generating at least one gas and/or steam flow with a controlled temperature, through said treatment compartment. The at least one generation unit is configured for exchanging heat between said at least one gas and/or steam flow and a second flow. A circulation system is configured for generating the second flow by using heat stored in the storage device, and is configured for using directly the heated fluid.

Abstract: A system for roasting particulate material, such as coffee or cacao beans, grains, malt, said system comprising: a photovoltaic unit configured for generating electricity from the solar radiation; a heat storage device comprising at least one phase change material; a roasting device configured for roasting said particulate material; a thermal circuit connecting the heat storage device to the roasting device, and configured for circulating a fluid through the roasting device; and an electrical circuit connecting the photovoltaic unit to the heat storage device, and configured for exchanging heat with said at least one phase change material.

Abstract: A system for roasting particulate material, such as coffee or cacao beans, grains, malt. The system includes a concentrated solar collector configured for heating a fluid; a heat storage device configured for storing heat of the heated fluid; a particulate material roasting device comprising a treatment compartment configured for receiving the particulate material, and at least one generation unit configured for generating at least one gas and/or steam flow with a controlled temperature, through said treatment compartment. The at least one generation unit is configured for exchanging heat between said at least one gas and/or steam flow and a second flow. A circulation system is configured for generating the second flow by using heat stored in the storage device, and is configured for using directly the heated fluid.