Study on Non-Steady Mass Transfer in Electrochemical Reaction Field

2016 Fiscal Year Final Research Report

• Project/Area Number: 26420154
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Thermal engineering
• Research Institution: The University of Kitakyushu
• Principal Investigator: IZUMI MASAAKI 北九州市立大学, 国際環境工学部, 教授 (50336939)
• Research Collaborator: MORITA MASANOBU 北九州市立大学, 国際環境工学部, 研究補助者
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 燃料電池 / 物質移動 / 水素濃度 / レーザ干渉法 / 酸素センサ

Outline of Final Research Achievements

In power generation of a solid oxide fuel cell which operates at high temperature, the steep increase of the output has a possibility of a damage of its fuel electrode due to a lack of hydrogen gas supplied to the reaction area. The aim of study was to develop measurement techniques of transient change of hydrogen gas concentrations in the both of the channel for the fuel gas and the fuel electrode during the power generation. By measuring the hydrogen gas concentrations at the both positions, the transfer rate of hydrogen gas is obtained, and then it is possible to determine the minimum amount of hydrogen gas supplied to the reaction area.
The hydrogen gas concentration in the channel for the fuel gas could be measured by a laser interferometry, and also that in the electrode could be measured with an oxygen sensor which was made of a platinum wire coated with zirconia.

Free Research Field

エネルギー変換工学