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首页> 外文会议>7th Biennial Conference on Engineering Systems Design and Analysis 2004(ESDA 2004) vol.1: Advanced Energy Systems; Advanced Heat Transfer in Engineering Systems; ... >DEVELOPMENT AND EXPERIMENTAL VALIDATION OF A SIMULATION TOOL FOR A FUEL CELL BASED POWER SYSTEM
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DEVELOPMENT AND EXPERIMENTAL VALIDATION OF A SIMULATION TOOL FOR A FUEL CELL BASED POWER SYSTEM

机译：基于燃料电池的电力系统仿真工具的开发与实验验证

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Fuel cells (FC) technology applied to energy production could represent an effective solution to face greenhouse gas emissions and to differentiate energy sources. However, real performances of FC systems still represent a critical issue in the definition of an assessed and economically competitive technology. In fact, FC performances depend on many variables such as temperature, pressure, current, membrane humidification, stoichiometry of the reactant gas, etc.; additionally, many of these influencing parameters depend one on the other, further complicating the analysis. Numerical simulation could greatly contribute to a better understanding of the influence of design parameters. Nevertheless, the availability of experimental data to validate and to verify the numerical models is an imperative issue. The primary target of the research activity described in this paper is the set up of an experimental test bench for Proton Exchange Membrane Fuel Cell (PEM FC) at the Department of Mechanical Engineer of the University of Roma Tor Vergata aiming to completely test 8 cells 0.1 kW stack: the measured data are fundamental to validate the numerical models which have been developed by the Authors following different hierarchical levels (both semi-empirical;, and dimensional analytical approach) with different predictive capabilities. This apparatus allows the control of the reactant gas mass flow rates, stack pressure, humidity, current, temperature and voltage. In this way it is possible to assess a mixed experimental-numerical methodology allowing a tuning procedure for the developed models making a wide use of dedicated experimental data. The preliminary results in terms of comparisons between experimental and computational data show a good agreement even by varying some of the most performance-affecting parameters such as operating pressure and temperature.
机译：应用于能源生产的燃料电池（FC）技术可能是面对温室气体排放和区分能源的有效解决方案。但是，FC系统的实际性能仍然是评估和经济竞争技术定义中的关键问题。实际上，燃料电池的性能取决于许多变量，例如温度，压力，电流，膜湿度，反应气体的化学计量等。另外，许多这些影响参数彼此依赖，从而使分析更加复杂。数值模拟可以大大有助于更好地理解设计参数的影响。尽管如此，提供用于验证和验证数值模型的实验数据仍然是当务之急。本文描述的研究活动的主要目标是在罗马Tor Vergata大学机械工程师系建立质子交换膜燃料电池（PEM FC）实验测试台，旨在完全测试8个电池0.1千瓦烟囱：实测数据是验证作者采用不同预测能力的不同层次级别（半经验和维度分析方法）开发的数值模型的基础。该设备允许控制反应物气体的质量流速，烟囱压力，湿度，电流，温度和电压。通过这种方式，可以评估混合的实验数字方法，从而为广泛使用专用实验数据的已开发模型提供调整程序。根据实验数据和计算数据之间的比较得出的初步结果显示出很好的一致性，即使通过更改一些影响性能的参数（例如工作压力和温度）也是如此。

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