State of art of hydrogen usage as a fuel on aviation

Abstract

Air transportation phenomenon is placed with sharing of world energy consumption between 2.5% and 5% totally and showing an increasing perspective approximately 4.8% per year. With the increasing world population and the energy consumption, the aviation industry has led the technology and researches to alternative and/or renewable energy sources depending on the risk of depletion on kerosene fuels and its eff ects on the price increasement and environmental negativeness. Hydrogen energy, which H2 is the most abundant element in the universe and most of it exists in the form of water and organic compounds, is considered the most promising fuel for all vehicles which need to eff ective energy.  e diversity of availability and the renewability of hydrogen fuel have opened the way for use in diff erent engineering applications with the creation of an environmentally friendly.  e aerospace and aviation sectors have been the earlier to recognize the importance of using this fuel.  e union of aviation industry and hydrogen energy has been met with NASA’s works and has become remarkable position with the developing technology.  is paper aim is touched upon the system of hydrogen usage strategies in aviation as a fuel. For this purpose, the brief history of using H2 in aviation were presented, then beneë ts and challenges were given with explanatory, engineering technology of usage H2 were analyzed, fuel cell applications and liquid forms of H2 is explained as a focus of fuel and storage necessity were discussed, new technologies approachment were analyzed and given with comparisons. As a result, a mini but detailed review perspective on state of art on usage hydrogen energy in aviation would be emphasized.