Modelling of Thermal Energy Storage

世界各地对能源储存都很感兴趣，目前这一领域仍以抽水蓄能为主。本项目将考虑的基于热存储的新系统(相对于化学电池等)因其相对较高的能量密度和较低的材料成本而显示出特别的前景。这一项目将有助于该领域的工作，这些工作已经在CUED开展了数年，在国内和国际上都得到了极好的认可。它将与EPSRC资助的发电集成储能工作相联系。该项目旨在探索热机械储能技术的各种工质和循环配置(特别是跨临界循环)，并基于功率密度和能量密度等概念制定设计规则。在目前的文献中，很少有工质在性能方面进行比较，跨临界循环的研究相对较少。这将主要以计算机为基础，用MatLab或Python编写周期分析方法。此外，该项目将包括为上述周期配置开发准确的成本模型。这将使其能够实现成本效益优化。

There is much interest worldwide in energy storage, which is still currently dominated by pumped hydro. The new systems based on thermal storage (as opposed to chemical batteries and the like) that will be considered in this project show particular promise due to their relatively high energy density and the low cost of materials. This project will contribute to the body of work in this area that has been undertaken at CUED for several years and received excellent recognition, both nationally and internationally. It will link in to the EPSRC-funded Generation-Integrated Energy storage work.The project aims to explore the range of working fluids and cycle configurations (especially transcritical cycles) for thermo-mechanical energy storage technologies and develop design rules based based on concepts such as power density and energy density. In the current literature, few working fluids have been compared in terms of their performance, and transcritical cycles have been relatively sparsely studied. This will be mainly computer-based, with cycle analysis methods coded in Matlab or Python.Furthermore, the project will include developing accurate cost models for the aforementioned cycle configurations. This will enable cost-efficiency optimisation thereof.