MEASURING IGNITION TEMPERATURE AND HEAT GENERATION FROM ETHANOL-OXYGEN-WATER MIXTURES ON PLATINUM

被引：0

作者：

Gibson, Joshua ^{[1
]}

Steciak, Judi ^{[1
]}

Budwig, Ralph ^{[1
]}

Beyerlein, Steve ^{[2
]}

机构：

[1] Univ Idaho, Dept Mech Engn, Boise, ID 83702 USA

[2] Univ Idaho, Dept Mech Engn, Moscow, ID 83844 USA

来源：

PROCEEDINGS OF THE ASME/JSME 8TH THERMAL ENGINEERING JOINT CONFERENCE 2011, VOL 2 | 2011年

关键词：

Catalytic ignition; ethanol; surface heat generation; platinum catalyst; ethanol-water combustion; DESORPTION PARAMETERS; ADSORPTION;

D O I：

暂无

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The surface temperature and heat generation from reactions of ethanol-water-oxygen-nitrogen mixtures on a platinum wire catalyst were determined using microcalorimetry. A 127-micron diameter, 99.95% Pt coiled wire was placed crosswise in the quartz tube of a plug flow reactor. A sourcemeter with a four-lead technique allowed the platinum wire to measure its average temperature by serving as a resistance thermometer, and enabled us to determine the amount of heat generated from surface reactions. Ignition temperatures varied from 380 to 570 K and heat generation from 0.8 to 11.8 W/cm(2) depending on the absolute amounts of ethanol and oxygen, the ethanol:water ratio, and the fuel-oxygen equivalence ratio. The addition of water to ethanol showed little to no effect on either the ignition temperature or the heat generation on the platinum wire at the maximum 60:40 ethanol:water mole ratio (similar to 83:17 ethanol: water liquid volume ratio) reported here. These experimental results aid in understanding the heat transfer processes of catalytic igniters used to ignite fuel-lean mixtures.

引用

页码：193 / +

页数：3

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