Diseño y simulación mediante CFD de ANSYS del proceso de calentamiento de agua hospitalaria con un intercambiador de calor para una capacidad máxima de10 m3/h

Abstract

The purpose of this project is to design a tube and shell heat exchanger with a maximum capacity of 10 m3 / h, in which a water heating process is carried out using saturated steam that comes from a boiler, to supply hot water to a hospital through a steel distribution pipe of a length of 28 m, the analysis was carried out by two methods: the analytical and numerical method. In the analytical method, formulas were established through scientific articles, as well as books to find the efficiency of the heat exchanger which intends that the water at the outlet of the distribution pipe surrounds 25 to 30 ° C. For the simulation and design of the heat exchanger and the distribution pipe used computer tools such as Inventor and Ansys Fluent. The geometry of the one shell and 22 tube exchanger has a triangular arrangement of the tubes and managed to heat the water to the temperature of 45 ° C, the initial parameters used in the saturated steam at the time of the Ansys Fluent simulation were 241.3 kPa, and 138.1 ° C; With the temperature at the outlet of the heat exchanger, simulations of the distribution pipe were carried out, which managed to obtain an average temperature of 26.42 ° C; temperature that shows the reliability of the design of both the exchanger and the distribution pipe.