... media-gap motor. Additionally, it includes a droplet separator to eliminate liquid water from the anode loop. The aerodynamic design is based on one-dimensional-correlations and three-dimensional-numerical CFD simulations. Different gas compositions of hydrogen, nitrogen, and water vapor are considered...

...Niklas Neupert; Janneck Christoph Harbeck; Franz Joos In recent years overspray fogging has become a powerful means for power augmentation of industrial gas turbines. Despite the positive thermodynamic effect on the cycle droplets entering the compressor increase the risk of water droplet erosion...

... transfer Design optimization Droplet Environmental Evaporation Experimental Jets Mass Transfer Sprays Thermodynamics Two-phase Vaporization Marine diesel engines operate at high temperatures and use heavy oil with high sulfur content [ 1 ]. This leads to high emissions of nitrogen oxides...

.... Editor: David Wisler. This work is in part a work of the U.S. Government. ASME disclaims all interest in the U.S. Government's contributions. 03 11 2017 26 02 2018 Combustion Droplet Engines Evaporation Flame Fuel combustion Power systems Sprays Thermodynamics Vaporization...

... and mechanical loss components based on unsaturated vapor water droplet size and pressure zones in LP stages of steam turbine and to investigate the influence of droplet size and rotor blade profile on cumulative energy losses due to condensation and provide an indication about the possible conceptual...

... of the water droplet diameters is done. For rising water content at constant adiabatic flame temperature, the NO x emissions can be held constant, whereas CO concentrations increase. On the contrary, both values decrease for measurements at constant equivalence ratio and reduced flame temperatures. Further...

.... Operating at room pressure and temperature (i.e., a “cold spray”), droplet sizes and velocities were measured for water, a water/surfactant mixture (lower surface tension), a water/glycerol mixture (higher viscosity), and glycerol (much higher viscosity). For all of the tested fluids, with the exception...

... URBINES AND P OWER . Manuscript received July 4, 2017; final manuscript received July 18, 2017; published online October 17, 2017. Editor: David Wisler. 04 07 2017 18 07 2017 Aeronautical propulsion Combustion Droplet Experimental Sprays Swirling Thermoacoustics Turbulent Two...

..., 2017. Assoc. Editor: Klaus Brun. 30 05 2017 10 07 2017 Aeronautical propulsion Aerospace applications Design optimization Droplet Experimental Film Fluids Gas turbine technology Multiphase flows Separated Shear Flows Turbulent Two-phase Unsteady Aerospace Propulsion...

...Pietro Rossi; Asad Raheem; Reza S. Abhari Formation of thin liquid films on steam turbine airfoils, particularly in last stages of low-pressure (LP) steam turbines, and their breakup into coarse droplets is of paramount importance to assess erosion of last stage rotor blades given by the impact...

...Giandomenico Lupo; Christophe Duwig The present effort focuses on detailed numerical modeling of the evaporation of an ethanol–water droplet. The model intends to capture all relevant details of the process: it includes species and heat transport in the liquid and gas phases, and detailed...

... streams on pilot air streams enhances with the increase of main swirl angle, because of the upward motion and increasing width of main recirculation zone. A small part of droplets are entrained by the recirculating main air streams at periphery of combustor and a majority of droplets concentrate near...

.... As a consequence, long rotor blades will generate a relative supersonic flow field at the inlet of the last rotor. This paper presents a unique experiment work that focuses at the top 30% of stator exit in the last stage of an low pressure (LP) steam turbine test facility with coarse droplets and high wetness mass...

... received June 22, 2016; published online September 13, 2016. Editor: David Wisler. 20 06 2016 22 06 2016 Aeronautical propulsion Aerothermodynamics Burners Combustion Combustors Computational fluid dynamics Droplet Flame Fuel combustion Fuels Gas turbine technology Modeling...

.... While only minor changes could be detected for the heat release distribution in the combustion chamber, the water distribution changes significantly while increasing the amount of water. Finally, changes in NO x emission concentrations can directly be related to water droplet sizes and the global water...

... slightly higher than the cage linear speed. The break-up pattern of oil on the cage inner surface suggests that smaller droplets will be shed at higher shaft speed. 1 Corresponding author. Contributed by the Structures and Dynamics Committee of ASME for publication in the J OURNAL OF E NGINEERING...

...Ali Afzalifar; Teemu Turunen-Saaresti; Aki Grönman The quadrature method of moments (QMOM) has recently attracted much attention in representing the size distribution of liquid droplets in wet-steam flows using the n -point Gaussian quadrature. However, solving transport equations of moments using...

...Fiona R. Hughes; Jörg Starzmann; Alexander J. White; John B. Young Within steam turbine flows, condensation phenomena give rise to complex droplet spectra that can span more than two orders of magnitude in size. To predict the behavior of the two-phase flow and the resulting losses...

... dynamics Droplet Film Mass Transfer Two-phase Unsteady flows The thermal analysis of bearing chamber is the basis of the overall circulating thermal analysis and design of lubrication system, and failures such as oil coking and oil fire in the bearing chamber directly affect the reliability...

... explained that, as long as the flash-back flow has small wetness, the blade is excited in its specific vibration modes in larger than eighth harmonic of rotational speed, but once the flash-back flow carries water droplets, the fluid force in random frequencies remarkably increases and excites the blade...