In-house designed and built 5-segment PEM fuel cellIRT temperature contours of isothermal (left) and variable temperature flow field case (right)The overall experimental setupExperimental setup componentsA test station real-time data acquisition and loggingRH/temperature real-time data acquisition and logging software with the LabVIEW graphical user interface (GUI) for system temperature regulation controlA new five-segment PEM fuel cell3D model of a new five-segment PEM fuel cell