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An improved thermal control of open cathode proton exchange membrane fuel cell
International Journal of Hydrogen Energy ( IF 8.1 ) Pub Date : 2018-12-11 , DOI: 10.1016/j.ijhydene.2018.11.055
Chaima Mahjoubi , Jean-Christophe Olivier , Sondes Skander-mustapha , Mohamed Machmoum , Ilhem Slama-belkhodja

Proton exchange membrane fuel cell is a well-known technology that has shown high efficiency and performance as a power system compared to conventional sources such as internal combustion engines. Especially, open cathode proton exchange membrane is growing more popular thanks to its simple structure, low cost and low parasitic losses. However, the open cathode fuel cell performance is highly related to the operating temperature variation and the airflow rate which is adjusted through the fan voltage. In this regard, the present study investigates the thermal management of an open cathode proton exchange membrane fuel cell. The objectives are the stack performance improvement and the stack degradation prevention. Indeed, a safety and optimal operating zone governed by the load current, the stack temperature and the air stoichiometry, is designed. This optimal operating zone is defined based on the system thermal balance and the operating constraints. Hence, the proposed control strategy deals concurrently with the stack temperature regulation and the air stoichiometry adjustment to guarantee the goals achievement. The performance of the proposed control strategy is verified through experimental studies with different operating conditions and results prove its efficiency. To properly design an appropriate control strategy, a multiphysic fuel cell model is developed based on acausal approach by mean of Matlab/Simscape and experimentally validated.



中文翻译:

改进的开放式阴极质子交换膜燃料电池的热控制

质子交换膜燃料电池是一种众所周知的技术,与常规源(例如内燃机)相比,它已显示出作为动力系统的高效率和高性能。特别地,开放阴极质子交换膜由于其简单的结构,低成本和低的寄生损失而变得越来越流行。然而,开放式阴极燃料电池的性能与通过风扇电压调节的工作温度变化和气流速率高度相关。在这方面,本研究研究了开放式阴极质子交换膜燃料电池的热管理。目的是提高堆叠性能并防止堆叠退化。实际上,设计了由负载电流,烟囱温度和空气化学计量决定的安全和最佳操作区域。基于系统热平衡和运行限制条件定义最佳运行区域。因此,提出的控制策略与烟囱温度调节和空气化学计量调节同时进行,以确保达到目标。通过在不同操作条件下的实验研究验证了所提出控制策略的性能,结果证明了其有效性。为了适当地设计适当的控制策略,基于非因果关系的方法通过Matlab / Simscape开发了多物理场燃料电池模型,并进行了实验验证。所提出的控制策略与烟囱温度调节和空气化学计量调节同时进行,以确保达到目标。通过在不同操作条件下的实验研究验证了所提出控制策略的性能,结果证明了其有效性。为了适当地设计适当的控制策略,基于非因果关系的方法通过Matlab / Simscape开发了多物理场燃料电池模型,并进行了实验验证。所提出的控制策略与烟囱温度调节和空气化学计量调节同时进行,以确保达到目标。通过在不同操作条件下的实验研究验证了所提出控制策略的性能,结果证明了其有效性。为了适当地设计适当的控制策略,基于非因果关系的方法通过Matlab / Simscape开发了多物理场燃料电池模型,并进行了实验验证。

更新日期:2018-12-11
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