In the last decade the interest in the development of meso-scale combustors (i.e. combustor having a characteristic dimension of the order of the quenching diameter) has grown due the interest in the development of portable power generation systems and small scale propulsion systems. Micro systems based on combustion are appealing because energy density of liquid hydrocarbons fuels is much higher than those of currently available top chemical batteries (~40-45 MJ/kg vs. ~1.2 MJ/kg). Moreover macro systems based on combustion show high reliability and efficiency, thus their miniaturization offers the potential to realize very efficient micro systems. Nevertheless when dealing with combustion at such small scale, problems related to heat losses, residence time and mixing became increasingly important and they will significantly affect the combustor performances. The objective of the present work is to experimentally investigate stability limits, efficiencies and pollutant emissions of a meso scale swirl combustor when burning different hydrocarbon fuels (methane, propane and butane).
Stability and Combustion Efficiency of a Meso-Scale Combustor Burning Different Hydrocarbon Fuels
COGHE, ALDO SEBASTIANO;COZZI, FABIO;OLIVANI, ANDREA;
2007-01-01
Abstract
In the last decade the interest in the development of meso-scale combustors (i.e. combustor having a characteristic dimension of the order of the quenching diameter) has grown due the interest in the development of portable power generation systems and small scale propulsion systems. Micro systems based on combustion are appealing because energy density of liquid hydrocarbons fuels is much higher than those of currently available top chemical batteries (~40-45 MJ/kg vs. ~1.2 MJ/kg). Moreover macro systems based on combustion show high reliability and efficiency, thus their miniaturization offers the potential to realize very efficient micro systems. Nevertheless when dealing with combustion at such small scale, problems related to heat losses, residence time and mixing became increasingly important and they will significantly affect the combustor performances. The objective of the present work is to experimentally investigate stability limits, efficiencies and pollutant emissions of a meso scale swirl combustor when burning different hydrocarbon fuels (methane, propane and butane).I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
