Author: Stephen N. Schmotolocha
Publisher:
ISBN:
Category :
Languages : en
Pages : 101
Book Description
This report describes studies performed on mixing, ignition, flame stability limits and combustion of liquid injected hydrocarbon fuels in a coaxial dump burner. The effects of flow conditions, injection distance, inlet geometry, fuel type and piloting were investigated. It was found that ignition limits differ from lean blowout limits, and that stable flames could be sustained over much wider range than the homogeneous gaseous mixtures. Results also indicate that ignition and flame stability mechanisms are controlled by the vapor phase fuel concentration level in the addy zone similar to spray mixtures, and not the global fuel/air ratio as in the case of homogeneous gaseous mixtures. Fuel injection distance has a profound effect on ignition but not on blowout limits. The observations indicate that increasing inlet velocity, air temperature or relatively low energy piloting improves, even significantly, both the recirculation zone and the overall combustion performance. RJ-5, although more difficult to ignite, exhibits higher heat release rates than JP-4. (Modified author abstract).
Experimental Investigation of Ignition, Combustion and Stability Characteristics of a Coaxial Sudden Expansion Burner
Author: Stephen N. Schmotolocha
Publisher:
ISBN:
Category :
Languages : en
Pages : 101
Book Description
This report describes studies performed on mixing, ignition, flame stability limits and combustion of liquid injected hydrocarbon fuels in a coaxial dump burner. The effects of flow conditions, injection distance, inlet geometry, fuel type and piloting were investigated. It was found that ignition limits differ from lean blowout limits, and that stable flames could be sustained over much wider range than the homogeneous gaseous mixtures. Results also indicate that ignition and flame stability mechanisms are controlled by the vapor phase fuel concentration level in the addy zone similar to spray mixtures, and not the global fuel/air ratio as in the case of homogeneous gaseous mixtures. Fuel injection distance has a profound effect on ignition but not on blowout limits. The observations indicate that increasing inlet velocity, air temperature or relatively low energy piloting improves, even significantly, both the recirculation zone and the overall combustion performance. RJ-5, although more difficult to ignite, exhibits higher heat release rates than JP-4. (Modified author abstract).
Publisher:
ISBN:
Category :
Languages : en
Pages : 101
Book Description
This report describes studies performed on mixing, ignition, flame stability limits and combustion of liquid injected hydrocarbon fuels in a coaxial dump burner. The effects of flow conditions, injection distance, inlet geometry, fuel type and piloting were investigated. It was found that ignition limits differ from lean blowout limits, and that stable flames could be sustained over much wider range than the homogeneous gaseous mixtures. Results also indicate that ignition and flame stability mechanisms are controlled by the vapor phase fuel concentration level in the addy zone similar to spray mixtures, and not the global fuel/air ratio as in the case of homogeneous gaseous mixtures. Fuel injection distance has a profound effect on ignition but not on blowout limits. The observations indicate that increasing inlet velocity, air temperature or relatively low energy piloting improves, even significantly, both the recirculation zone and the overall combustion performance. RJ-5, although more difficult to ignite, exhibits higher heat release rates than JP-4. (Modified author abstract).
Government Reports Announcements
Author:
Publisher:
ISBN:
Category : Technology
Languages : en
Pages : 966
Book Description
Publisher:
ISBN:
Category : Technology
Languages : en
Pages : 966
Book Description
An Experimental Investigation of Ignition and Combustion Phenomena in Pilot-ignited Natural Gas Engines
Author: Kalyan Kumar Srinivasan
Publisher:
ISBN: 9781109904475
Category :
Languages : en
Pages : 168
Book Description
Increasingly stringent emissions statutes and the need for energy security and self-sufficiency are primary driving factors to consider alternatives to fossil fuels. In this regard pilot-ignited natural gas engines are clean, efficient, economical, and thereby, viable alternatives to diesel engines.
Publisher:
ISBN: 9781109904475
Category :
Languages : en
Pages : 168
Book Description
Increasingly stringent emissions statutes and the need for energy security and self-sufficiency are primary driving factors to consider alternatives to fossil fuels. In this regard pilot-ignited natural gas engines are clean, efficient, economical, and thereby, viable alternatives to diesel engines.
An Experimental Investigation of the Stability Limits of a Simple Radial Burner
Author: Daniel Starrett
Publisher:
ISBN:
Category : Combustion, Theory of
Languages : en
Pages : 220
Book Description
Publisher:
ISBN:
Category : Combustion, Theory of
Languages : en
Pages : 220
Book Description
Stability, Ignition and Pollutant Formation Characteristics of Combustion in a Thermally Stabilized Plug-flow Burner
Author: Lisa Diane Pfefferle
Publisher:
ISBN:
Category :
Languages : en
Pages : 462
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 462
Book Description
Government Reports Index
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1074
Book Description
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1074
Book Description
A Theoretical and Experimental Investigation of Well-mixed Combustion in a Rapid-mixing Burner
Author: Russell K. Bunnell
Publisher:
ISBN:
Category :
Languages : en
Pages : 148
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 148
Book Description
An Experimental Combustion and Flame Stabilization Study of Dump Burners
Author: Stephen N. Schmotolocha
Publisher:
ISBN:
Category :
Languages : en
Pages : 106
Book Description
An experimental investigation of the mixing, flammability and combustion mechanisms of dump burners was conducted. Tests were carried out with a 9:1 expansion area coaxial configuration at atmospheric burner pressure, and over a wide spectrum of air velocity, air temperature and fuel/air ratio. Liquid JP-4 was injected normal to the airstream through eight orifices located in the inlet wall upstream of the burner. The effects of air flow conditions, fuel injection location, global equivalence ratio, and secondary hot and cold oxidizer injections on mixing, ignition, blow-out flameholder base region and combustor performances were studied.
Publisher:
ISBN:
Category :
Languages : en
Pages : 106
Book Description
An experimental investigation of the mixing, flammability and combustion mechanisms of dump burners was conducted. Tests were carried out with a 9:1 expansion area coaxial configuration at atmospheric burner pressure, and over a wide spectrum of air velocity, air temperature and fuel/air ratio. Liquid JP-4 was injected normal to the airstream through eight orifices located in the inlet wall upstream of the burner. The effects of air flow conditions, fuel injection location, global equivalence ratio, and secondary hot and cold oxidizer injections on mixing, ignition, blow-out flameholder base region and combustor performances were studied.
Government Reports Annual Index
Author:
Publisher:
ISBN:
Category : Government reports announcements & index
Languages : en
Pages : 1064
Book Description
Publisher:
ISBN:
Category : Government reports announcements & index
Languages : en
Pages : 1064
Book Description
Experimental Investigation of Advanced Low-Temperature Combustion Concepts for Compression Ignition Engines
Author: Metin Korkmaz
Publisher:
ISBN: 9783844078275
Category :
Languages : en
Pages :
Book Description
Publisher:
ISBN: 9783844078275
Category :
Languages : en
Pages :
Book Description