Flameless combustion of hydrogen on the surface of a hydrophobized catalyst

被引:1
作者
Shebeko, YN
Trunev, AV
Shepelin, VA
Navtsevya, VY
Zaitsev, AA
机构
关键词
D O I
10.1007/BF00743804
中图分类号
O414.1 [热力学];
学科分类号
摘要
The flameless combustion of hydrogen on the surface of a hydrophobized catalyst is investigated experimentally under various conditions. A quantitative interrelationship is discerned between the rate of catalytic oxidation of hydrogen and the catalyst surface temperature. It is shown that the presence of helium in the gas-air medium diminishes considerably the hydrogen oxidation rate by lowering the temperature of the catalytic surface by virtue of the high thermal conductivity of helium. An approximate mathematical model is proposed for the flameless combustion of hydrogen on the surface of a catalyst. It is shown that the insertion of catalytic rods in metal tubes of diameter 20 mm significantly enhances the performance of each element by the judicious direction of strong convection flows from the heated surface of the rod.
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页码:537 / 542
页数:6
相关论文
共 12 条
[1]  
BARONOV GS, 1993, NUCL ENERGY HUMAN SA, P722
[2]   CATALYTIC COMBUSTION OF PROPANE AIR MIXTURES ON PLATINUM [J].
BRUNO, C ;
WALSH, PM ;
SANTAVICCA, DA ;
SINHA, N ;
YAW, Y ;
BRACCO, FV .
COMBUSTION SCIENCE AND TECHNOLOGY, 1983, 31 (1-2) :43-74
[3]  
CHAKRABORTY AK, 1988, KERNTECHNIK, P53
[4]  
CHAKRABORTY AK, 1986, INT ANS ENS TOP M OP
[5]   THE IGNITION OF METHANE ETHANE BOUNDARY-LAYER FLOWS BY HEATED CATALYTIC SURFACE [J].
GRIFFIN, TA ;
PFEFFERLE, LD ;
DYER, MJ ;
CROSLEY, DR .
COMBUSTION SCIENCE AND TECHNOLOGY, 1989, 65 (1-3) :19-37
[6]  
KELLER VD, 1991, TEPLOENEERGETIKA, P55
[7]  
KELLER VD, 1989, ATOM ENERG, V67, P335
[8]   GAS-PHASE IGNITION OF A PREMIXED COMBUSTIBLE BY CATALYTIC AND NONCATALYTIC CYLINDRICAL SURFACES [J].
RANGEL, RH ;
FERNANDEZPELLO, AC ;
TREVINO, C .
COMBUSTION SCIENCE AND TECHNOLOGY, 1986, 48 (1-2) :45-63
[9]  
SHCHERBAKOVA MV, 1988, KHIM PROMST, P406
[10]  
SHCHERBAKOVA MV, 1986, KHIM PROMST, P39