Zobrazeno 1 - 10
of 58
pro vyhledávání: '"Dilip R. Ballal"'
Autor:
Dilip R. Ballal, Joseph Zelina
Publikováno v:
Journal of Aircraft. 41:43-50
Second only to the invention of an airplane by the Wright Brothers 100 years ago, the jet engine has revolutionized both military and civil aviation. We present a survey of the key aeroengine technology trends. Since 1939, engine thrust has increased
Publikováno v:
Journal of Propulsion and Power. 15:216-223
The design and development of low-emission, lean premixed aeroand industrial gas-turbine combustors is challenging because of a need to satisfy conflicting requirements of operability, combustion performance, and low emissions. A toroidal well-stirre
Publikováno v:
Ophthalmology. 104:878-887
Purpose: The authors report the findings of 17 patients with ophthalmic injuries produced by launched water balloons;they determine water balloon kinetic energies in experimental and theoretical studies. Methods: Six case summaries are presented;one
Autor:
J. Zelina, Dilip R. Ballal
Publikováno v:
Journal of Engineering for Gas Turbines and Power. 119:70-75
The design and development of low-emissions, lean premixed aero or industrial gas turbine combustors is very challenging because it entails many compromises. To satisfy the projected CO and NO{sub x} emissions regulations without relaxing the conflic
Publikováno v:
Journal of Energy Resources Technology. 118:170-179
Jet fuel requirements have evolved over the years as a balance of the demands placed by advanced aircraft performance (technological need), fuel cost (economic factors), and fuel availability (strategic factors). In a modern aircraft, the jet fuel no
Autor:
Mark D. Durbin, Dilip R. Ballal
Publikováno v:
Journal of Engineering for Gas Turbines and Power. 118:72-77
The design requirements of a modem gas turbine combustor are increasingly dictated by wide stability limits, short flame length, and uniform mixing. To achieve the best trade-off between the above three factors, flame characteristics (length, shape,
Autor:
M. D. Vangsness, G. J. Sturgess, S. P. Heneghan, Dilip R. Ballal, Dale T. Shouse, A. L. Lesmerises
Publikováno v:
Journal of Engineering for Gas Turbines and Power. 115:486-498
Experimental information is presented on the effects of back-pressure on flame-holding in a gaseous fuel research combustor. Data for wall temperatures and static pressures are used to infer behavior of the major recirculation zones, as a supplement
Publikováno v:
Journal of Engineering for Gas Turbines and Power. 115:480-485
A flowing, single-pass heat exchanger test rig, with a fuel capacity of 189 liters, has been developed to evaluate jet fuel thermal stability. This “Phoenix Rig” is capable of supplying jet fuel to a 2.15 mm i.d. tube at a pressure up to 3.45 MPa
Publikováno v:
Journal of Engineering for Gas Turbines and Power. 114:783-789
Detailed information on the influence of geometric and flow parameters on the structure and properties of recirculation zone in confined combusting flows is not available. In this paper, recirculation zone structure and turbulence properties of metha