... Experimental Heat transfer Internal flow Mass Transfer Turbines High efficiencies and power density in gas turbines are increasingly important for both power generation and aviation propulsion. To increase thermodynamic cycle efficiencies, manufacturers are continually increasing overall pressure...

...; published online June 15, 2018. Assoc. Editor: Klaus Dobbeling. 21 07 2017 05 11 2017 Energy systems Combustors Cooling Design optimization Energy Energy conversion Engines Exergy Fuel combustion Gas turbine technology Heat transfer Internal combustion engines Mass Transfer...

... is limited by mass transfer according to Eq. (7) . For the mass transfer of HNCO and water vapor in the catalyst channels, the binary diffusion coefficient is calculated for each substance in air. Due to the low concentrations of isocyanic acid and water compared to air, the assumption of binary...

... Combustion Cooling Environmental Experimental Fluids Fossil power generation Fuel combustion Fuels Gas turbine technology Gaseous Heat transfer Mass Transfer Mixed Process Natural gas technology Packed Beds Participating Media Phase change Power systems Reliability Coupled behavior...

... online October 4, 2016. Editor: David Wisler. 06 07 2016 22 07 2016 Fluids Gas turbine technology Internal flow Jets Mass Transfer Shear Flows Turbines Gas turbines are used extensively in both aviation propulsion and power generation applications, so increases...

.... Finite element Heat transfer Mass Transfer Natural convection Power Radiation Temperature Thermodynamics Turbines Unsteady Co- generation The temperature drop during natural cooling and the way in which the steam turbine restarts have a major impact on the cyclic lifetime of critical...

... results are shown to be in good agreement with the available experimental data, confirming the reliability of LES/FMDF method for numerical simulation of turbulent mixing in complex flow configurations. Computational fluid dynamics Jets Mass Transfer Modeling Turbulence Turbulent mixing...

..., and an ultrasonic measurement system was established to measure the dynamic oil film thickness. On the other hand, the unsteady oil film heat and mass transfer movement model was also established, and the numerical simulation to solve oil film motion by using computational fluid dynamic (CFD) commercial software...

... Mass Transfer Multiphase flows Phase change Sprays Two-phase Vaporization Fogging techniques turned into a common method of increasing or regulating gas turbines power output. The technique was originally discovered due to temporary thrust increase of aircraft engines during take-off...

.../j.applthermaleng.2011.08.014 [3] Zhang , C. , and Bokil , A. , 1997 , “ Aquasi-Three-Dimensional Approach to Simulate the Two Phase Fluid Flow and Heat Transfer in Condensers ,” Int. J. Heat Mass Transfer , 40 ( 15 ), pp. 3537 – 3546 . 10.1016/S0017-9310(97)00014-8 [4] Philpott , C...

... increase the evaporative cooling effect through the enhanced heat and mass transfer rates. 10 05 2010 13 05 2010 05 04 2011 05 04 2011 compressors cooling drops evaporation gas turbines heat transfer mass transfer The injection of water droplets into gas turbines...

.... A two-dimensional (2D) transient axisymmetric heat and mass transfer model was developed through the use of a lumped-parameter boundary-layer model to simulate the inlet flow and determine the time-dependent inlet duct heat transfer. This model was validated with transient 2D computational fluid...

...Nimrod Kapas; Tariq Shamim; Paul Laing This paper presents a computational investigation of the effect of mass transfer on the performance of selective catalytic reduction (SCR) catalysts, which are employed to reduce NO x emissions from diesel engines. The paper employs a single-channel based, one...

... to the FAC in heat transfer equipments such as heat exchangers and steam generators. The objective of this paper is to examine the role of the flow and mass transfer in bends under alkaline FAC conditions. Bends experience increased FAC rates compared with straight pipes, and are the most common components...

... aerodynamics blades compressors confined flow damping distortion mass transfer vibrations In terms of blade damping, studies have focused on the quantification of damping amplitudes and the contributions from material, mechanical and aerodynamic sources of damping. The experimental research...

... cryogenics hydraulic systems internal combustion engines multiphase flow orifices (mechanical) turbines vaporisation cavitation bubble growth mass transfer multiphase flow heat transfer cryogens Cavitation is a persistent problem for a wide range of machines, such as in internal flow...

... this phenomenon, often called after-boiling among engine manufacturers. The model structure includes thermodynamic equations to compute heat transfer as well as mass transfer equations to determine the vaporized mass of the coolant, which occurs in cylinder head passages and the vapor condensation within...

... 2008 02 10 2008 computational fluid dynamics fission reactor coolants fission reactor cooling mass transfer mechanical engineering computing natural convection rotational flow turbulence Density differences between the coolant water and the primary loop inventory can play...

...P. Lappas; R. L. Evans A simple two-zone mass transfer model was used to predict the mean squish velocity history at the rim of a conventional bowl-in-piston combustion chamber. The chamber’s geometry produces gas flow that converges radially inwards (“squish”) as TDC (top dead center...

... to higher temperatures at higher heating rates as a result of the competing effects of heat and mass transfer to the material. The results on the Arrhenius chemical kinetic parameters and heat of pyrolysis obtained from the thermal decomposition of the sample materials showed that different components...