Labyrinth Seals in Reversible Pump Turbines

RheEnergise与国家工程实验室的合作项目。RheEnergise正在开发一种技术解决方案，其中可以将高密度流体(水密度的2.5倍，约为混凝土的密度)用于抽水蓄能应用，从而提高抽水蓄能项目的功率和能量密度。高密度流体意味着可以在海拔较低的地方找到工地(仅在英国就有约9500个)，土木工程工作量也减少了2.5倍。项目是闭环的，因此可以位于任何气候中，包括沙漠。该项目寻求确定如何通过高密度流体保持超高效率(~96%机械地)，以及如何通过涡轮机械对流体流动特性的广度和深度了解来最大限度地降低运营和维护成本。RheEnergise(和供应链中的其他英国企业)可能会在全球预测的能量存储和系统灵活性市场中占据很大比例(可能是10%)，使用重力/机械解决方案，而不是仅仅依赖新兴的电池技术来实现未来的系统灵活性。RheEnergise已经确定了进行这项研究工作的必要性，以解决系统灵活性的巨大潜在市场：Aurora-Energy-Research预测，到2030年，仅在英国就需要13GW的新灵活资产，而彭博新能源公司预测全球储能市场价值\&GT；到2050年，这个项目的目标是使运营和成本效率提高10%，从而使RheEnergise实现其全球市场份额约10%的目标，这意味着在一家英国创新公司的推动下，英国经济将直接受益约60亿美元。气候变化委员会、国家电网、英国能源、IPPR和许多其他评论员都表示，能源储存是实现净零碳能源系统所需的推动因素。世界上的部分地区已经证明，可再生能源加上储存比煤炭、核能甚至天然气更便宜。莱茵集团已放弃在德国进行新的煤炭开发。目前，英国和法国的离岸风电合约价格为40.00 GB/兆瓦时。联系全球许多地点的陆上风能和太阳能光伏~GB 30.00/兆瓦时。RheEnergise的地理信息系统分析显示，约9,500个英国站点机会，约80,000个欧洲(例如以平均20兆瓦/80兆瓦时的项目规模计算，只需要350个英国站点就能满足Aurora预测的英国2030年市场需求的50%。过去十年的风力发电和太阳能光伏安装数量表明，在十年内建造350个地点是完全可以实现的。

A collaborative project between RheEnergise and the National Engineering Laboratory.RheEnergise are developing a technological solution where a high-density-fluid (2.5x the density of water, about the density of concrete) can be used in pumped energy-storage applications, increasing both the power and energy densities of pumped energy-storage projects. The high-density-fluid means that sites can be found in locations with lower elevations (~9,500 in the UK alone) and that civil engineering work is also reduced by 2.5x. Projects are closed loop and can therefore be located in any climate, including deserts.The project seeks to identify how ultra-high efficiencies (~96% mechanically) can be maintained with the high-density-fluid and how operational and maintenance costs can be minimised through both a breadth and depth of understanding of fluid-flow characteristics through turbo-machinery.The potential opportunity is for RheEnergise (and other UK businesses in the supply-chain) to capture a large percentage (perhaps 10%) of the total global predicted energy-storage and system-flexibility market, using a gravitational/ mechanical solution rather than solely relying on emerging battery technologies for future system-flexibility.RheEnergise has identified the need to undertake this research work to address the huge potential market for system-flexibility:Aurora-Energy-Research forecast a £6bn requirement, in the UK alone, for 13GW of new flexible assets by 2030, and Bloomberg-NEF predict a global energy-storage market worth \>$600bn by 2050\.This projects goal is to enable a 10% increase in operational and cost efficiencies that in-turn enables RheEnergise to reach its goal of ~10% global market share, meaning ~$6bn of direct benefits to the UK economy, driven by a UK innovator company.The Committee-on-Climate-Change, National-Grid, Energy-UK, IPPR and many other commentators all state that energy-storage is the enabler required to achieve a net-zero carbon energy-system.Parts of the world have already demonstrated that renewable energy plus storage is cheaper than coal, nuclear and even gas. RWE has abandoned new coal development in Germany. Off-shore wind contracts are now <£40.00/MWh in UK and France. On-shore wind and solarPV in many locations globally is contacted ~£30.00/MWh.RheEnergise's GIS analysis shows ~9,500 UK site opportunities, ~80,000 Europe (ex. Nordics), ~160,000 Africa.At an average project size of 20MW/80MWh, only 350 UK sites would be required to provide 50% of Aurora's predicted 'need' for the UK's 2030 market. The numbers of wind-power and solarPV installations seen in the the last decade shows that the construction of 350 sites in a decade is entirely achievable.