Ecological Systems and Devices Annotation << Back THE ANALYTICAL FORMULAS FOR ACCOUNT OF INTENSITY OF ULTRAVIOLET RADIATION IN PHOTOREACTOR FOR DISINFECTION OF WATER R.E. Ilinsky, A.N. Ulyanov In article the analytical formulas for account of intensity of ultraviolet radiation in photoreactor for disinfection of water are submitted. These formulas are received on the basis of model of a lamp as a linear source, everyone which infi nitesimal piece lets out a fl ow of radiation in regular intervals on all directions. The concept of an «effective interval» of a source of radiation is entered. The fl ow of radiation from of an «effective interval» of a source of radiation forms more than 99 % of intensity of radiation in the given point photoreactor. The numerical example is given. Key words: ultraviolet radiation; photoreactor; purifi cation of water; ray trace; mathematical model. Contacts: E-mail: svarog@svarog-uv.org Pp. 53-61.