Impact of tank gravimetric efficiency on propulsion system integration for a first-generation hydrogen civil airliner

Abstract Civil aircraft that fly long ranges consume a large fraction of civil aviation fuel, injecting an important amount carbon into the atmosphere. Decarbonising solutions must consider this sector. A philosophical-analytical feasibility airliner family to assist in elimination dioxide emissions from is proposed. It comprises four models based on integration body two-deck with engines, wings and flight surfaces long-range twin widebody jet. The objective investigation presented here evaluate impact liquid hydrogen tank technology terms gravimetric efficiency. range storage efficiencies was evaluated; pessimistic value 0.30 futuristic 0.85. This parameter has profound influence overall fuel system weight integrated performance. resulting relatively small for short-range aircraft; it increases longer-range aircraft. For shorter-range variants, tanks needed store are small, so not significant. Longer constrained important. In case longest range, deliverable distance slightly over 4,000 nautical miles, efficiency 0.3, nearly 7,000