a gas turbine plant including a compressor section and a turbine section housed within a multipart casing with the shafts of each section co - axial , the compressor section including a double - sided low pressure radial compressor , a high pressure radial compressor and an inter - cooler , while the turbine stage includes a first stage axial turbine on the same shaft as the compressor and at least an additional turbine stage ; a heat exchanger or regenerator being included in the turbine exhaust .