Aerodynamic and Thermodynamic Design of Heat Management Systems Accelerating Net Zero using Advanced Fluids

热管理系统的空气动力学和热力学设计使用先进流体加速净零排放

• 批准号: 2777173
• 金额: --
• 依托单位: University of Cambridge
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2022
• 资助国家: 英国
• 起止时间: 2022 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2777173
• 关键词: Aerodynamic; Thermodynamic; Design; Heat; Management

In the push towards achieving "Net Zero" it is necessary that further technological advancements within the energy industry are proposed and identified in order to reduce plant costs, improve plant efficiencies and allow for plant adaptability with other renewable energy sources. These advancements hence must achieve higher system efficiencies with minimised operating losses in the utilised energy systems. Thus, this project aims to research advanced working fluids with desirable transport properties (such as low viscosity to high heat transfer capability) to operate in advanced turbomachine-based power cycles to aid in this transition. These advanced working fluids contain Supercritical fluids (such as sCO2) and organic vapour dense gases which are already directly found within advanced cycle configurations utilising organic Rankine cycles of SCO2 recovery. Applicability for said fluids is found within the heat management systems of these power cycles such as for heat recovery or intercooling which aims to directly push the cyclic efficiency further for the cycle itself. The achievable high power-densities with the use of these high operating pressure advanced fluids can thus allow for higher efficiencies and reduced plant size thus, directly influencing plant cost and size. Thus, the research aims to address three key criterions 1. Identify heat transfer trends observed with the use of proposed advanced working fluids in heat management systems. 2. Aerodynamic loss mechanisms being observed and the net effect on performance and efficiencies of the heat management system itself. 3. Proposed way forward in terms of design criterion and operating conditions for advanced fluid/fluids deemed as the best suitable contenders. These criterions shall be addressed through a combination of high-fidelity scale resolving computational simulations and further verification through experimentation with a proposed heat transfer facility and an already existing facility for aerodynamic loss analysis which will be adapted for higher supercritical operating conditions.

在推动实现“净零”的过程中，有必要提出并确定能源行业的进一步技术进步，以降低工厂成本，提高工厂效率，并使工厂能够适应其他可再生能源。因此，这些进步必须实现更高的系统效率，同时最大限度地减少所使用的能源系统中的运行损失。因此，该项目旨在研究具有理想传输特性（如低粘度到高传热能力）的先进工作流体，以在先进的基于涡轮增压器的动力循环中运行，以帮助实现这一转变。这些先进的工作流体包含超临界流体（例如sCO 2）和有机蒸气致密气体，其已经直接在利用SCO 2回收的有机朗肯循环的先进循环配置中发现。在这些动力循环的热管理系统中发现了所述流体的适用性，例如用于热回收或中间冷却，其目的是直接进一步推动循环本身的循环效率。因此，使用这些高操作压力先进流体可实现的高功率密度可以允许更高的效率和减小的设备尺寸，从而直接影响设备成本和尺寸。因此，本研究旨在解决三个关键标准1。确定在热管理系统中使用建议的先进工作流体时观察到的传热趋势。2.正在观察的空气动力学损失机制以及对热管理系统本身的性能和效率的净影响。3.就被视为最佳竞争者的先进流体/流体的设计标准和操作条件提出了前进的方向。这些标准应通过高保真度尺度解析计算模拟和进一步验证（通过使用建议的传热设施和现有的空气动力学损失分析设施进行实验，该设施将适用于更高的超临界运行条件）相结合来解决。