Waste Heat Recovery of the Fuel Cell Systems

由于有效载荷和续航里程的要求，目前的电池技术在重型车辆的应用中存在一定的局限性。在“英国氢战略”的支持下，氢和燃料电池似乎是实现此类应用净零碳排放的可行选择。燃料电池使用氢并产生按需电力，但由于热量的散失，会造成能量损失。这种能量可以被回收以产生有用的能量。对于燃料电池续航里程只有几百千瓦的大型车辆来说，这一点尤为重要，因为少量的废热回收（WHR）将产生大量有用的能量。然而，燃料电池的水冷比将面临诸如回收低品位废热等挑战。因此，这旨在通过废热回收来提高燃料电池技术的效率。目标将包括：-开发燃料电池系统的验证模型-使用燃料电池验证模型对选定的案例研究车辆进行动力总成设计-为选定的案例研究车辆设计和集成不同的WHR选项-优化有关燃料电池，WHR和车辆性能参数的总效率

Due to the payload and range requirements, current battery technology have some limitations for heavy-duty vehicle applications. Hydrogen and fuel cells seem a viable option supported by "UK Hydrogen Strategy" in achieving Net-Zero carbon for such applications. Fuel cells use hydrogen and produce on-demand electricity, but energy loss is involved through the heat dissipation. This energy can be recovered for producing useful power. It is especially important for large vehicles with fuel cell range of a few hundred kW where small percentages of waste heat recovery (WHR) will make a significant amount of useful energy. However, WHR from fuel cells will have its own challenges such as recovering the low-grade waste heat. Therefore, this aims to increase the efficiency of the fuel cell technology through waste heat recovery. Objectives will involve:- Developing a validated model of the fuel cell system- Powertrain design of the selected case study vehicles using the validate model of the fuel cell- Design and integration of different WHR options for the selected case study vehicles- Optimisation of the total efficiency with respect to the fuel cell, WHR and vehicle performance parameters