Effects of Hydrogen Addition on High-Pressure Nonpremixed Natural Gas Combustion

Autor: Gordon McTaggart-Cowan, W. K. Bushe, Martin H. Davy, N. Wu
Rok vydání: 2010
Předmět:
Zdroj: Combustion Science and Technology. 183:20-42
ISSN: 1563-521X
0010-2202
DOI: 10.1080/00102202.2010.496381
Popis: The effects of hydrogen addition on the ignition and combustion of a high-pressure methane jet in a quiescent charge of high-temperature, medium-pressure air were investigated numerically and experimentally. Subsequently, the results of these two fundamental studies were applied to the interpretation of combustion and emissions measurements from a pilot-ignited natural gas engine fueled with similar fuels. Whereas, under quiescent conditions, the influence of hydrogen addition on the autoignition delay time of the gaseous jet was small, a markedly greater effect was observed in the more complex environment of the research engine. Similarly, in the two fundamental studies, the addition of hydrogen to the methane fuel resulted in a reduction of NOx emissions, whereas increased levels of NOx emissions were observed from the engine, highlighting the difference between the autoignition and pilot-ignition process.
Databáze: OpenAIRE