Design Challenges in Hydrogen-Fueled Rotary Engine—A Review

The rotary engine (RE) is a potential power plant for unmanned aerial vehicles (UAVs) and automobiles because of its structural design merits. However, it has some serious drawbacks, such as frequent maintenance requirements excessive fuel consumption. This review paper presents the current status hydrogen-fueled (HRE) technology identifies existing research development gaps in combustion efficiency performance this that might benefit transportation sector. Focusing primarily on from past ten years, crucial challenges encountered hydrogen-powered engines have been reviewed terms knock, hydrocarbon (HC) emissions, seal leakages. recent advances concepts production approaches used geometric models trochoid profiles, port configurations, utilization systems, currently available computational fluid dynamics (CFD) tools. article an attempt to collect organize literature methods up date provide recommendations further improvements RE technology.