2024-03-29T09:15:23Z
https://nagoya.repo.nii.ac.jp/oai
oai:nagoya.repo.nii.ac.jp:00017729
2023-01-16T04:05:17Z
320:321:322
Numerical Study on Catalytic Combustion of Hydrogen-Air Mixture in a Channel Using Detailed Chemical Kinetics
水素-空気予混合気の流路内触媒燃焼に関する素反応機構による数値解析
高下, 峻一
51862
山下, 博史
51863
松永, 秀一
51864
山本, 和弘
51865
KOGE, Shunichi
51866
YAMASHITA, Hiroshi
51867
MATSUNAGA, Shuichi
51868
YAMAMOTO, Kazuhiro
51869
Catalytic Combustion
Hydrogen-air Mixture
Platinum Catalyst
Elementary Reaction Kinetics
Catalyzer
A catalytic combustion has remarkable advantages of the low temperature combustion without NOx emission and the fuel-lean or fuel-rich combustion beyond flammability limit. Recently, the catalytic combustion is applied to treat the purge gas including hydrogen from fuel cell equipment, because hydrogen gas is very dangerous when it is accumulated in the enclosed space. The measurement of the physical quantity in the honeycomb, which is commonly used for catalytic combustion, is very difficult, because it is assembled with a lot of millimeter-sized channels. So, it is necessary to investigate by the numerical simulation and to understand the phenomenon in the honeycomb. We have carried out the numerical study on the catalytic combustion of platinum catalyst in a channel using detailed chemical kinetics for H2-air combustion gas and platinum catalytic surface. Then, the details of catalytic combustion in a channel, such as temperature, mass fraction in the gas phase, surface temperature, coverage at the catalyst and reaction rate of the elementary reaction are obtained. Especially, the effects of fuel equivalence ratio, water vapor contained in hydrogen-air mixture and surface roughness are estimated and the catalytic reaction mechanism becomes clear.
journal article
一般社団法人 日本機械学会
2007
application/pdf
日本機械学会論文集(B)
735
73
2345
2353
http://hdl.handle.net/2237/19795
http://dx.doi.org/10.1299/kikaib.73.2345
0387-5016
https://nagoya.repo.nii.ac.jp/record/17729/files/60.pdf
jpn
https://doi.org/10.1299/kikaib.73.2345