OCR Text |
Show Geometry: Atomizer: Stabilization: Fuel: Total Air: Atomizing air: TABLE I Furnace operating parameters Furnace diameter! , D = 0.57 m Throat diameter, d = 0.097 m Nozzle outer diameter, dn = 0.0318 m Atomizing-air outlet diameter, daa = 0.005 m 'Throat blockage ratio, dnld = 0.33 Expansion ratio, D/d = 5.88 Parker Hannifin RSA nozzle, air-assisted, with 45-air swirler. Nomina160- hollow cone spray. Aerodynamic, Swirl number2, S = 0.99 Swirl orientation was the same as for the atomizer. Kerosene, mass flowrate, mf = 1.400 +/- .005 g/s (60kW) Inlet temperature, T f = 300 K Dehumidified, mass flowrate, rna = 30.5 +/- .2 g/s (50% excess) Inlet temperature, T a = 300 K Mean axial velocity at inlet, Va = 3.88 m/s Reynolds number, Rea = Vad/V = 25,000 Mass flowrate, maa = 1.400 +/- .002 g/s (1: 1 atomizing-air to fuel) Inlet temperature, T aa = 300 K Mean axial velocity at inlet, Vaa = 60.4 m/s Reynolds number, Reaa = Vaada;Jv = 20,000 lAre,a equivalent circular diameter of the octagonal cross section. 2Measured at the entrance plane of the furnace. |