HEAVEN - Hydrogen Engine Architecture Virtually Engineered Novelly

气候中立航空将需要使用替代燃料，如绿色氢和可持续航空燃料（SAF），并结合超高效燃气涡轮机发动机的功率密度，用于中小范围（SMR）市场，相当于目前航空运输排放量的约50%。罗尔斯·罗伊斯（在HEAVEN项目中由RR-UK，RR-D和ITP代表）在英国和欧洲主要学术界，工业和研究中心的支持下，目前正在开发新一代非常高涵道比的齿轮发动机架构，称为UltraFan®，该架构于2014年开始。从一开始，这种涵道发动机架构就被设计成可扩展的，并满足宽体和SMR市场的需求。为了实现必要的20%的燃油消耗减少，劳斯莱斯建议将UltraFan设计大幅改进为UltraFan H2。改进的发动机架构设计将采取下一步措施提高燃气涡轮机的效率，利用氢等净零碳燃料的特性来提高效率，并将其与混合动力技术相结合，以减少能源浪费。TR 3中已有的许多创新技术将被纳入这一新架构中，以提高燃气涡轮机的效率。与CAVENDISH（HRA-01）中的氢气和HE-ART（HER-01）清洁航空提案中的混合动力工作以及国家和区域计划中的活动一起，这将协同结合，以验证高达TRL 6的高度创新的UltraFan H2设计，以支持2035年的EIS。HEAVEN汇集了一个高度专业化的欧洲工业和学术联盟，该联盟已经积极参与并熟悉UltraFan计划。此外，合作伙伴easyJet，欧洲航空公司运营商，拥有欧洲制造的最大的SMR飞机机队，将带来对运营要求的深入了解。

Climate-neutral aviation will require the use of alternative fuels such as Green Hydrogen and Sustainable Aviation Fuel (SAF) combined with the power density of an ultra-efficient gas turbine engine for the Small and Medium Range (SMR) market which corresponds to approximately 50% of the current share of air transport emissions. Rolls-Royce (represented within the HEAVEN project by RR-UK, RR-D and ITP) supported by key UK and European academia, industry and research centres are currently developing a new generation of very high bypass ratio geared engine architecture called UltraFan® which was started in 2014. From the beginning this ducted engine architecture has been designed to be scalable and meet the needs both of widebody and SMR markets. To achieve the necessary 20% fuel burn reduction Rolls-Royce proposes to significantly evolve the UltraFan design into UltraFan H2. The evolved engine architecture design will take the next steps in improving the efficiency of the gas turbine, take advantage of the properties of net zero carbon fuels such as Hydrogen to improve efficiency, combining this with Hybrid electric technology to reduce wasted energy. Numerous innovative enabling technologies already at TR3 will be incorporated into this new architecture to improve the gas turbine efficiency. Together with work proposed on Hydrogen in CAVENDISH (HRA-01) and Hybrid Electric in HE-ART (HER-01) Clean Aviation proposals in conjunction with activities in national and regional programmes, this will be synergistically combined to validate up to TRL6 the highly innovative UltraFan H2 design to support a 2035 EIS. HEAVEN brings together a highly specialised European industrial and academic consortium already strongly involved and familiar with the UltraFan programme. Additionally, the partner easyJet, European airline operator who have the largest fleet of European manufactured SMR aircraft operating in Europe will bring an in depth knowledge of operational requirements.