Training Manual . - Samara: SamSTU, 2006. - 150 s . The algorithm for calculating the heat exchange process . is considered. The necessary equations are given. Examples of calculation of heating of raw materials of rectification columns by water vapor, hot water and cubic liquid are shown, as well as cooling processes of distillate and cubic residue by water. The manual is intended for the implementation of course projects and work on the discipline "Processes and apparatuses of oil and gas processing and petrochemistry" and "Main processes and apparatuses of chemical industries" by students of specialties130603 "Equipment of oil and gas processing" ; 240403 "Chemical technology of natural energy carriers and carbon materials" ;