About the article
A.N. Makarov
Examples of calculations of heat transfer of gas volumes of electric arcs and torches with heating surfaces according to the laws of thermal radiation of cylindrical and spherical gas volumes are given. It is noted that the examples of calculations confirm the truth of the five laws of thermal radiation of gas volumes. It is indicated that the gas volume in the furnace of a steam boiler fills the entire furnace and has the shape of a rectangular parallelepiped; when modeling the radiation of a gas volume in the form of a rectangular parallelepiped by radiation of a cylindrical gas volume, the calculation error does not exceed 3 %. It is concluded that the error in calculations when modeling the radiation of a gas volume in the form of a rectangular parallelepiped by the radiation of several hundred spherical gas volumes inscribed in a parallelepiped is 0,9–0,4 %.
thermal radiation, gas volume, laws, torch, electric arc, furnaces, furnaces, combustion chambers.