Numerical Simulation of Heat Transfer in Rod-Support Heat Exchanger

The numerical simulation method is put forward to research the rod-support heat exchanger,in order to overcome the shortcoming of the main method of experiment.Numerical simulation model is established by using theory of similarity,and the various structure parameters that affect the characteristics of heat transfer and fluid flow in rod-support heat exchanger are studied.The modulus formulas of the heat transfer and flow resistance in the laminar flow have been derived by using the least-squares method.A set ofvariable structure parameter experimental equipment for the rod-support heat exchanger is designed and manufactured.100 experiment data are obtained under the conditions of the rod-array between single-row tubes and the rod-array between double-row tubes and different structure parameter.The results show a well agreement between the computed and experimented values.It is favorable to use the numerical simulation method in the research and development of heat exchangers.