Solar power plants based on concentrated solar power technology use heat energy to heat water into steam and drive turbines. One of the challenges facing the engineers of those stations is that usually the hours of high electricity consumption are at night after the workers return to their homes and at that time there is no sun and no electricity is generated. In order to utilize solar energy during the day even during the night, the energy needs to be stored, for the purpose of storing energy excess energy is used during the day for the purpose of melting salts with a high heat capacity and thus storing the heat energy in them. The salt tanks and the pipes through which they Tow are made of L316 Stainless steel and are exposed to corrosion due to the exposure to the salts and this causes irreversible failures in the line.
The vacuum furnace is used for sintering parts made of metal powder. To keep the shape of the parts, a binder is used. The main problem is that the vacuum furnace becomes dirty and needs a very long cleaning. Regular washing was not successful. We investigated the process and found that washing should be dedicated to the conversion of the material into a form that results in the formation of gases having low temperature of the condensation