The invention provides an improved process and apparatus for integrating the heat transfer zones of spiral-wound, plate fin, tube and finned tube exchangers thus increasing the overall effectiveness of the process. The shaft also includes a tubular wall extending between the proximal and distal ends to define a first lumen. The power controller may include a fan for forcing cooling air toward the heat sink and an air guide mounted to the heat sink for dividing the cooling air such that cooling air flows over the top of the heat sink and cooling air flows through the fins of the heat sink. The controller displays a home screen in a different layer when a second gesture is performed on the home screen displayed on the touch screen display. A controller is coupled to the plurality of control elements, the display, the RKE transmitter, and the wideband receiver wherein the controller has an RKE mode for providing a plurality of remote entry command functions. In a steady operation, the gas turbine generates a first output power greater than zero, the steam turbine generates a second output power greater than zero, and a total generated power is a sum of the first and second output powers and is substantially equal to a house load of the power plant.