Impact of chemical reactions upon heat transfer

摘要

Estimation of some parameters in traditional and new technology requires calculating heat interaction with the surface of Fluids and gases which have inside sources of energy and matter. Under laminar flows the problem is generally connected with the development of efficient programmes for solving the systems of conservation equations and with determining the exact values of thermophysical and chemical-kinetic parameters of the matter. Much more difficulties are experienced when analysing the heat and mass transfer with chemical reactions when turbulent flow is being formed. They are due to problems such as exponential dependance of chemical reaction rate on temperature, the necessity of taking into account the characteristic times of chemical reactions and pulsations changing from the frozen to the equilibrium ones. Some examples of successful applications of various models are presented in the paper.