Abstract: A system for providing heated, pressurized air to a device in an industrial process, the system including at least one engine arranged and designed to heat and pressurize air, and at least one pipe attached to the at least one engine to provide a flow path for air from the at least one engine to the device in the industrial process. The system may also include an expansion joint positioned between the at least one engine and the pipe, the expansion joint arranged and designed to allow relative axial movement between the at least one engine and the pipe.