Investigation of the pilot stagnation region in a high power liquid-fueled combustor

Robert Zhang; Andrew C. Pratt; Robert P. Lucht; Carson D. Slabaugh

Investigation of the pilot stagnation region in a high power liquid-fueled combustor

Robert Zhang, Andrew C. Pratt, Robert P. Lucht, Carson D. Slabaugh

Research output: Contribution to conference › Paper › peer-review

Abstract

Particle Image Velocimetry measurements are used to investigate flow fields in liquid-fueled high thermal power density flames. The two-component velocity fields were acquired at a frequency of 5 kHz and at a spatial resolution of 9.4 pixels/mm. A piloted, partially premixed, liquid-fueled swirl burner is installed in the Purdue high pressure Aviation Combustion Experiment. The effect of pilot-to-main fuel flow splits and global equivalence ratio are studied and compared to the non-reacting dataset at the same inlet temperature and pressure. Histograms of the stagnation lines shows the evolution of the central recirculation zone as the injector's fueling is varied. The shape of the distributions elucidate the role of the pilot nozzle on the performance of the combustor.

Original language	English
State	Published - 2017
Externally published	Yes
Event	10th U.S. National Combustion Meeting - College Park, United States Duration: Apr 23 2017 → Apr 26 2017

Conference

Conference	10th U.S. National Combustion Meeting
Country/Territory	United States
City	College Park
Period	04/23/17 → 04/26/17

Funding

This research was funded by GE Aviation, and the technical monitors are Dr Michael Benjamin and Dr Sibtosh Pal.

Funders	Funder number
GE Aviation

Keywords

Central recirculation bubble
High-pressure
Liquid fuel
PIV
Swirl combustion

Cite this

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title = "Investigation of the pilot stagnation region in a high power liquid-fueled combustor",

abstract = "Particle Image Velocimetry measurements are used to investigate flow fields in liquid-fueled high thermal power density flames. The two-component velocity fields were acquired at a frequency of 5 kHz and at a spatial resolution of 9.4 pixels/mm. A piloted, partially premixed, liquid-fueled swirl burner is installed in the Purdue high pressure Aviation Combustion Experiment. The effect of pilot-to-main fuel flow splits and global equivalence ratio are studied and compared to the non-reacting dataset at the same inlet temperature and pressure. Histograms of the stagnation lines shows the evolution of the central recirculation zone as the injector's fueling is varied. The shape of the distributions elucidate the role of the pilot nozzle on the performance of the combustor.",

keywords = "Central recirculation bubble, High-pressure, Liquid fuel, PIV, Swirl combustion",

author = "Robert Zhang and Pratt, {Andrew C.} and Lucht, {Robert P.} and Slabaugh, {Carson D.}",

year = "2017",

language = "English",

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TY - CONF

T1 - Investigation of the pilot stagnation region in a high power liquid-fueled combustor

AU - Zhang, Robert

AU - Pratt, Andrew C.

AU - Lucht, Robert P.

AU - Slabaugh, Carson D.

PY - 2017

Y1 - 2017

N2 - Particle Image Velocimetry measurements are used to investigate flow fields in liquid-fueled high thermal power density flames. The two-component velocity fields were acquired at a frequency of 5 kHz and at a spatial resolution of 9.4 pixels/mm. A piloted, partially premixed, liquid-fueled swirl burner is installed in the Purdue high pressure Aviation Combustion Experiment. The effect of pilot-to-main fuel flow splits and global equivalence ratio are studied and compared to the non-reacting dataset at the same inlet temperature and pressure. Histograms of the stagnation lines shows the evolution of the central recirculation zone as the injector's fueling is varied. The shape of the distributions elucidate the role of the pilot nozzle on the performance of the combustor.

AB - Particle Image Velocimetry measurements are used to investigate flow fields in liquid-fueled high thermal power density flames. The two-component velocity fields were acquired at a frequency of 5 kHz and at a spatial resolution of 9.4 pixels/mm. A piloted, partially premixed, liquid-fueled swirl burner is installed in the Purdue high pressure Aviation Combustion Experiment. The effect of pilot-to-main fuel flow splits and global equivalence ratio are studied and compared to the non-reacting dataset at the same inlet temperature and pressure. Histograms of the stagnation lines shows the evolution of the central recirculation zone as the injector's fueling is varied. The shape of the distributions elucidate the role of the pilot nozzle on the performance of the combustor.

KW - Central recirculation bubble

KW - High-pressure

KW - Liquid fuel

KW - PIV

KW - Swirl combustion

UR - http://www.scopus.com/inward/record.url?scp=85049041784&partnerID=8YFLogxK

M3 - Paper

AN - SCOPUS:85049041784

T2 - 10th U.S. National Combustion Meeting

Y2 - 23 April 2017 through 26 April 2017

ER -

Investigation of the pilot stagnation region in a high power liquid-fueled combustor

Abstract

Conference

Funding

Keywords

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