航空领域的清洁替代能源包括混和燃料、生物燃料、核能、氢能和电能等。对未来喷气发动机而言,第二代生物燃料的实用性和市场前景看好;对无人机来说,燃料电池取代太阳能电池已成为发展趋势。目前,替代燃料的合作研究趋势开始显现,验证和使用规范性研究明显得到加强,技术升级、产业布局意图愈加明显。 Clean alternative energy sources in aviation include blended fuels, biofuels, nuclear energy, hydrogen and electricity. The future of jet engines, the practicality of the second generation of biofuels and market prospects; for the UAV, the replacement of solar cells with fuel cells has become a trend. At present, the research trend of the cooperative research of alternative fuels has begun to appear, and the normative research on verification and use has obviously been strengthened. The intention of technology upgrading and industrial layout is even more obvious.