Results 51 to 60 of about 167,702 (344)
International Journal of Aerospace Engineering, 2013 Film cooling is vital to gas turbine blades to protect them from high temperatures and hence high thermal stresses. In the current work, optimization of film cooling parameters on a flat plate is investigated numerically.
Ahmed M. Elsayed +2 more
doaj +1 more source
, 2020 This paper reports the dynamic wetting behavior and heat transfer characteristics for impinging droplets on heated bi-phobic surfaces (superhydrophobic matrix with hydrophobic spots).
Qi, Wenliang, Weisensee, Patricia B.
core +1 more source
Energy saving potential of a counter-flow regenerative evaporative cooler for various climates of China: Experiment-based evaluation [PDF]
, 2017 © 2017 Recently there has been growing interest in regenerative evaporative coolers (REC), which can reduce the temperature of the supply air to below the wet-bulb of intake air and approach its dew-point.
Chen, Hongbing +4 more
core +1 more source
Advanced Engineering Materials, EarlyView.A wood‐based magnetic and conductive material called Magwood (MW), capable of blocking almost 99.99% of electromagnetic waves (in the X‐band frequency range), is synthesized using a simple, solvent‐free process. MW is lightweight, resists water, and is flame‐retardant, making it a promising alternative for shielding electronics. The rapid proliferation
Akash Madhav Gondaliya +3 more
wiley +1 more source
Shape optimization of a bended film-cooling hole to enhance cooling effectiveness
Journal of Thermal Science and Technology, 2019 To improve cooling effectiveness of film-cooling hole, bending of hole was investigated and optimized using surrogate modelling based on three-dimensional Reynolds-averaged Navier-Stokes analysis. The turbulence was modeled using a shear stress transport
Jun-Hee KIM, Kwang-Yong KIM
doaj +1 more source
Energies, 2022 In order to study the effect of thermal barrier coating deposition inside the film holes of turbine guide vanes on film cooling performance, film effectiveness on the suction side is measured by infrared thermal imaging technology.
Wei Zhang +3 more
doaj +1 more source
Entrance Effects on Diffused Film-Cooling Holes [PDF]
Volume 4: Heat Transfer; Electric Power; Industrial and Cogeneration, 1998 Film-cooling is a widely used method of prolonging blade life in high performance gas turbines and is implemented by injecting cold air through discrete holes on the blade surface. Most experimental research on film-cooling has been performed using round holes supplied by a stagnant plenum.
A. Kohli, K. A. Thole
openaire +1 more source
Thermoelectric Modules Incorporating MgAgSb and Mg3(Sb,Bi)2 Synthesized Using a Melting Method
Advanced Engineering Materials, EarlyView.A scalable synthesis method for a thermoelectric material of MgAgSb is established. A thermoelectric power module of MgAgSb/Mg3(Sb,Bi)2 is fabricated, showing the conversion efficiency of 7.4% at ΔT = 315 K. The performance is comparable to conventional Bi2Te3 modules when they are operated with an air‐cooled heat exchanger.
Kazuo Nagase +8 more
wiley +1 more source
Film Cooling Effectiveness Data for Simple Injection Geometries: A Collection of Three-Axis Plots
International Journal of Rotating Machinery, 1994 A three-axis plot of laterally averaged film cooling effectiveness versus blowing rate and versus dimensionless distance downstream is a sufficiently compact representation of film cooling effectiveness data for injection through a row of holes or two ...
L. D. Stone, R. J. Goldstein
doaj +1 more source
Prediction of Film Cooling Effectiveness of Steam [PDF]
Volume 4: Heat Transfer; Electric Power, 1982 The intent of this work is to show, analytically, that superheated steam can provide better film cooling than conventional air for gas turbine blades and vanes. Goldstein’s two-dimensional and Eckert’s three-dimensional models have been reexamined and modified in order to include the effects of thermal-fluid properties of foreign gas injection on the ...
Je-Chin Han, P. E. Jenkins
openaire +1 more source