SEPAL: SinglE Piece tAnk Liner

由于新冠肺炎大流行，全球对温室气体减排的需求比以往任何时候都更加明显。二氧化碳排放量的减少是可记录的，并表明改变是可能的。英国政府已经认识到，后新冠肺炎时代的复苏应该以“绿色”倡议为核心。但停止全球旅行和国际贸易的影响对经济和生计也造成了同样的损害。因此，需要在不继续排放和破坏环境的情况下恢复运输业务，特别是航空运输。运输需要能源，公路运输的一些部门甚至航空的某些方面的电气化是可能的，但目前和设想的电池能量密度并不表明大型客机或货运飞机完全是电动的、具有可行的航程和有效载荷的可行替代方案。这导致了对替代和绿色燃料的需求。氢如果是由可持续能源产生的，则是碳氢化合物的清洁替代品，无论是化石来源的还是合成来源的。但氢的能量密度低于碳氢化合物，因此，为了达到生存范围内氢的体积/质量，飞机必须有非常轻的结构和储氢罐来抵消这种较低的能量密度。该项目将有助于开发TISICS独特的轻型净形状空间重点化学品和气罐技术，以可扩展，以满足航空所需的容量和经济性。储罐将使用轻质薄壁铝扩散连接，以避免较低的完整性和较重的传统焊接制造。Net Shape技术实现了具有集成安装结构的适应性储罐设计，并从铝到高完整性不锈钢或钛管道的过渡。制造过程具有额外的优势，与传统的航空制造相比，制造废品率通常为5%，在传统航空制造中，购买的材料只有不到10%留在最终产品中。这些储罐的可扩展技术的发展对工具、工艺条件和检查提出了新的挑战，这将在本项目中得到解决。TISICS建立在跨多个部门的创新金属复合材料研究的30年历史的基础上，能够将我们的用于气体和化学推进的空间推进剂储罐发展成能够提供大型、安全、长使用寿命的未来航空用储氢储罐的大规模制造方法。这是建立在我们为当前和下一代节油飞机所做的大量轻量化部件工作的基础上的。在英国开发这项技术将提高英国现有的制造和出口市场地位。这维持了制造业的就业机会，创造了新的先进工程和制造业就业机会，为英国航空航天、空间和汽车行业提供了新的供应，并为英国经济创造了进一步的出口机会。在运输氢气方面的世界领先地位对于超越碳氢燃料至关重要，并通过清洁车载混合动力汽车或燃料电池发电加强电气化。但这需要轻质的氢气罐。

The global need for greenhouse gas emission reduction is clearer than ever as a result of the COVID-19 Pandemic. Reductions in CO2 emissions are recordable and show that change is possible. The UK government has recognised that a post COVID-19 recovery should have 'green' initiatives at its core. But the impact of stopping global travel and international trade has been equally damaging to economies and livelihoods. Therefore a balance is needed to recover transport businesses and in particular aviation without continued emissions and damage to the environment.Transport needs an energy source, electrification of some sectors of road transport and even some aspects of aviation is possible but current and envisaged energy density for batteries do not show a viable alternative for large passenger or freight aircraft to be entirely electric and have viable range and payload. This leads to the need for alternative and green fuels. Hydrogen if generated form sustainable energy sources is a clean alternative to hydrocarbons whether fossil or synthetically sourced. But the energy density of hydrogen is lower than hydrocarbons and therefore to achieve the volume/mass of hydrogen for viable range, aircraft must have very light structures and hydrogen storage tanks to offset this lower energy density.This project will help develop TISICS unique lightweight net shape space focused chemical and gas tank technology to be scalable to meet the capacity and economics needed for aviation. The tanks will utilise lightweight thin wall aluminium diffusion bonded to avoid the need for lower integrity and heavier conventional welded manufacturing. The net shape technology enables adaptable tank designs with integrated mounting structures and transitions from aluminium to high integrity stainless steel or titanium pipework.The fabrication process has the additional benefits of low waste manufacture typically 5% compared to conventional aerospace manufacturing where less than 10% of the material bought remains in the final product. This represents significant further energy and hence CO2 emission savings in the supply chain.The development of the scalable technology for these tanks to beyond space system size presents new challenges for tooling, process conditions and inspection that will be addressed in this project.TISICS builds on a 30 year history of innovative metal composite research across multiple sectors to be in a position to develop our space propellant tanks for gas and chemical propulsion, into a scalebale manufacturing method capable of delivering large, safe long service life hydrogen storage tanks for aviation use in the future. This builds on our extensive work on lightweight parts for current and future generation fuel efficient aircraft.Developing this technology in the UK will enhance the existing manufacturing and export market position held by the UK. This sustains manufacturing jobs and creates new advanced engineering and manufacturing jobs supplying UK aerospace, space and automotive sectors and creating further export opportunities for the UK economy.World leadership in hydrogen for transport is essential to move beyond hydrocarbon fuels and augments electrification through clean onboard hybrids or fuel cell power generation. But this needs light-weight hydrogen tanks.