Monitoring of the Operating Parameters a Low-Temperature Fuel-Cell Stack for Applications in Unmanned Aerial Vehicles: Part II

The second part of the paper is aimed at the analysis of hydrogen fuel demand for the operation of a PEMFC stack. The methodology of hydrogen utilisation for the production of electrical energy and for purging (purification processes) is presented. Based on the laboratory data derived from the electrical and non-electrical parameters recorded in this part of the paper, the design of the monitoring and control system of stack performance was elaborated and the implementation of the system tested. This solution enables not only the monitoring and control of electrical parameters, temperature, and humidity, but also management of the degree of humidification of PEMFC membranes using a short-circuit unit