Abstract
The regenerator matrices are often made up of stacks of similar mesh size gauzes. The geometrical shape of wire gauze depends on the wire diameter size as well as on the mesh size. Accordingly, in a fixed mesh size, the size of the wire diameter has a direct effect upon the characteristics of the matrix. In this paper, the effects of the wire diameter of stacked wire gauzes on the regenerator performance have been investigated experimentally and theoretically. Experimental engine performance has been measured for four species of matrices. These matrices have been made of two different mesh numbers and two different wire diameter numbers for each mesh number. The indicated power, pressure drop, coolant heat loss at the cooler and so on of the test engine with each matrix have been compared. In order to determine the optimum wire diameter in a fixed mesh size for the regenerator matrix, the theoretical pressure drop, reheat loss and indicated thermal efficiency have been calculated and compared with engine data.
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