Electro-thermal impedance spectroscopy applied to an open-cathode polymer electrolyte fuel cell
Electro-thermal impedance spectroscopy applied to an open-cathode polymer electrolyte fuel cell
复制标题
电热阻抗谱在阴极开路聚合物电解质燃料电池中的应用
DOI:
10.1016/j.jpowsour.2015.10.047
复制
发表时间:
2016
影响因子:
9.2
通讯作者:
Engebretsen E
中科院分区:
文献类型:
--
作者:
Engebretsen E
The development ofin-situdiagnostic techniques is critical to ensure safe and effective operation of polymer electrolyte fuel cell systems. Infrared thermal imaging is an established technique which has been extensively applied to fuel cells; however, the technique is limited to measuring surface temperatures and is prone to errors arising from emissivity variations and reflections. Here we demonstrate that electro-thermal impedance spectroscopy can be applied to enhance infrared thermal imaging and mitigate its limitations. An open-cathode polymer electrolyte fuel cell is used as a case study. The technique operates by imposing a periodic electrical stimulus to the fuel cell and measuring the consequent surface temperature response (phase and amplitude). In this way, the location of heat generation from within the component can be determined and the thermal conduction properties of the materials and structure between the point of heat generation and the point of measurement can be determined. By selectively ‘locking-in’ to a suitable modulation frequency, spatially resolved images of the relative amplitude between the current stimulus and temperature can be generated that provide complementary information to conventional temporal domain thermograms.
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DOI:
--
发表时间:
1983
期刊:
影响因子:
--
作者:
横関 俊介
通讯作者:
横関 俊介
影响因子:
7.2
作者:
Oluwamayowa A. Obeisun;Q. Meyer;James B. Robinson;C. Gibbs;A. Kucernak;P. Shearing;D. Brett
通讯作者:
Oluwamayowa A. Obeisun;Q. Meyer;James B. Robinson;C. Gibbs;A. Kucernak;P. Shearing;D. Brett
DOI:
--
发表时间:
2002
期刊:
影响因子:
--
作者:
J. Rakotoniaina;O. Breitenstein;M. Langenkamp
通讯作者:
M. Langenkamp
影响因子:
9.2
作者:
Daniels F
通讯作者:
Daniels F