Accession Number : ADA139961

Title :   Electrical Spray Modification with Various Fuels in a T56 Combustor.

Descriptive Note : Contractor rept.,

Corporate Author : NAVAL POSTGRADUATE SCHOOL MONTEREY CA

Personal Author(s) : Zajdman,A

PDF Url : ADA139961

Report Date : Mar 1984

Pagination or Media Count : 74

Abstract : The possibility of electrically altering the droplet size distribution and injection cone angle of gas turbine fuel injectors has been investigated. The work was carried out both in a combustor rig incorporating a T-56 combustor liner/nozzle and in a non-burning spray optical absorption apparatus into each of which a high voltage electrode could be introduced. Several electrode designs were investigated in an effort to minimize flameholding and subsequent electrical shot circuiting. Fuels investigated included JP-4, the design fuel, JET-A, JP-5, and Diesel Fuel Number 2. Results of the optical experiments indicated reductions in the Sauter Mean Diameter of 7.7 percent. Results of the combustion experiments indicated increases in combustor efficiency of up to 3.6 percent for Diesel Fuel Number 2 and increases up to 0.6 percent for JP-4. (Author)

Descriptors :   *Fuel sprays, *Electrical properties, *Fuel injectors, *Modification, *Combustors, Gas turbines, Naval research, Drops, Electrostatics, Fuels, Flame holders, High voltage, Electrodes, Electrohydrodynamics, Optics, Combustion, Light scattering, Fuel shortages, Petroleum products

Subject Categories : Electricity and Magnetism
      Combustion and Ignition
      Fuels

Distribution Statement : APPROVED FOR PUBLIC RELEASE