ВИВЕДЕННЯ ФОРМУЛИ ТЕПЛОВОГО НЕПЕРЕРВНОГО ВИПРОМіНЮВАННЯ

Abstract

On the ground of physical mechanism, according to which heat radiation is a result of collision of quasi-free electrons with solid body atoms, the formula of spectral power density of heat continuous irradiation is deduced. The formula expresses the product of unit volume quantity in the unit spectral interval and average number of rays of one source in a second multiplied by the power of one ray. The formula derivation is implemented according to the spectral volume density of heat radiation, which expresses the power of radiation volume unit for one second (the power in the unit spectral interval). Pursuant to that fact, that heat radiation is spherical, the produced volume source of electromagnetic radiation is regarded as a sphere which diameter is determined by the length of radiation wave. Created spherical wave propagates in space according to the Maxwell’s theory. Total number of sources of radiation unit volume in the unit spectral interval is determined by division of volume unit on the conditional volume of one source and the radiation frequency. The distribution of radiation sources according to power in solid body in each time station is assumed according to Boltzmann distribution. For one second each source makes a certain number of rays. The product of source number of volume unit in the unit spectral interval on the average rays’ number of one source for a second multiplied by the power of one ray determines the spectral density of radiation power.