US Patent 8662150 Heat exchanger media pad for a gas turbine

A media sheet for a heat exchanger is disclosed. The media sheet includes a first layer having a first outer surface and a second layer having a second outer surface. The first and second layers define a plurality of passages extending therebetween. At least one of the first and second outer surfaces comprises a plurality of depressions. The plurality of depressions further define the plurality of passages therebetween. The media sheet is polymer fiber-based and wettable.