J081052 固体高分子形燃料電池の内部圧力分布計測に関する研究 : WAX系感温塗料の圧力計測への適用([J08105]燃料電池(5))

概要

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Decreasing the contact resistance between components with high sensitivity of the contact pressure in the Polymer Electrolyte Fuel Cell improves the cell performance accompanied with the complex interaction between the transport phenomenon of heat, reactants and electrons, especially, under the high current density operation of Fuel Cell Vehicles. This work aims to establish the method of measuring pressure distribution in the cell by quantifying the discoloration level of irreversible temperature-sensitive paint which also has pressure sensitivity. Three paint samples, which discolor at 95, 100 and 105 °C, were prepared in uniform thickness and pressurized during the fixed time under the condition of constant temperature and humidity. The discoloration level was quantified with the peak value of the brightness spectrum which is obtained by image processing of the sample picture of the microscope. A linear correlation between pressure and discoloration level was obtained in some paints, and at 70°C and relative humidity of 70 %, one of paints could quantify pressure range from 0.5 to 2.5 MPa and one of the other paints could quantify the lower pressure range.
一般社団法人日本機械学会の論文
2011-09-11