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SUMMARY:Fuel Placement and Evaporation for Prefilming Airblast Atomisers a
 t Gas Turbine Conditions - Umesh Bhayaraju
DTSTART:20080530T110000Z
DTEND:20080530T120000Z
UID:TALK12172@talks.cam.ac.uk
CONTACT:8442
DESCRIPTION:The emissions produced by aircraft engines give rise to import
 ant global environmental concerns like the depletion of the ozone layer an
 d air quality at ground level near airports. Several concepts like RQL (Ri
 ch-Burn Quick-Quench Lean-Burn)\, LPP (Lean Premixed Prevapourised)\, LDI 
 (Lean Direct Injection) and SC (Staged Combustion) are developed to reduce
  NOx emissions. These concepts require a high degree of homogeneity and qu
 ick mixing of liquid fuel with air in the combustor which depend on the at
 omisers. The current gas turbine combustors employ airblast atomizers as t
 he primary atomizing devices. The principle advantage of airblast atomizer
 s is their ability to produce a fine spray and quick mixing in the early s
 tages\, especially for combustion systems operating at high pressure\, com
 paratively low soot formation and high potential to reduce emissions. For 
 development of airblast atomisers\, it is necessary to know their fuel pla
 cement characteristics in combustor zone at elevated pressures. The presen
 tation will discuss about basic studies carried out on liquid sheet emergi
 ng from prefilming airblast atomizers and characterisation of the spray em
 erging from the atomisers at elevated pressures and temperatures of air.
LOCATION:Language Unit Meeting Room
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