Effect of Variations in Mission and Vehicle Constraints on Fuel Cell System Optimization

The sensitivity of some constraint variations on minimum weight hydrogen-oxygen fuel-cell systems of the 1970-1980 time period were investigated. Relative changes in fuel-cell system component weights are shown for variations in mission and vehicle parameters and constraints such as power quality and quantity, operating environment and radiator area limitation. Examples show the relative effects on fuel-cell system minimum weight, of improving voltage regulation with voltage regulators and augmenting radiator cooling with evaporative water cooling.