Characteristic Research Of The Exergy Transfer In Heater

According to the first, second thermodynamic laws and the non-equilibrium thermodynamics theory, and contrary to the three segment high pressure heat exchanger of the condensing power plant, combining the structure parameter with the operating parameter, the temperature distribution of cold fluid, heat fluid and tube inside and outside, which during the process of non-change in phase heat exchange and coagulation heat exchange, has been deduced. Based on the temperature distribution, exergy transmission coefficient of convection transfer process which is from heat fluid to tube inside, and thermal conductivity process which is from tube outside to inside, has been deduced. Discuss the heat exchange property of each section in the three segment high pressure heat exchanger from the standpoint of exergy transmission. theory, provide theory reference frame for optimizing the structure and operation of heat exchanger.