The Numerical Simulation on Filling Length of Foam Metal in Heat Pipe Lithium Bromide-watergenerator Driven by Waste Heat
The 6 groups of heat pipe generators are involved,and each of them have the same of pipe diameter and length.But their filling lengths of metal foam filled in pipes are different.Their performance are simulated by FLUENT.So arethe curves and values of steam volume fraction and temperature at the pipe outlet.Then the relationship between filling length and performance is obtained by Origin.Therefor the the optimum filling length is determined by golden section method in MATLAB,and the result-shows that the heat transfer enhancement effect is best when the filling length of the copper foam is 344mm.It provides an impor-tant reference value and theoretical basis for the optimization design of heat pipe generator based on metal foam.