A construction of recuperator core segments is provided which insures proper assembly of the components of the recuperator core segment, and of a plurality of recuperator core segments. Each recuperator core segment must be constructed so as to prevent nesting of fin folds of the adjacent heat exchanger foils of the recuperator core segment. A plurality of recuperator core segments must be assembled together so as to prevent nesting of adjacent fin folds of adjacent recuperator core segments.
This invention was made in conjunction with the US Department of Energy's Advanced Microturbine System Project under contract number DE-FC02-00CH11058. The United States government may have certain rights in this invention.