The properties of coatings for hot corroxion protection of gas turbines operating in a lower grade diesel oil in foreign countries was briefly introduced. The best protective effects of rich - Cr MCr Al X ( M=Ni,Co,Ni Co,X=Y ,Si,Hf) coating was defined.
介绍了国外燃用低质柴油的地面燃机一级涡轮叶片及导向叶片防护涂层的抗腐蚀性能 ,肯定了高 Cr- MCr Al X (M=Ni、 Co、 Ni Co,X=Y、 Si、 Hf)涂层防护效果。
A turbine aerodynamic design system is established that is capable for modeling of a bowed - twist - sweep blade with analysis and optimization of the flow field structure applied to the aerodynamic design.
A turbine impeller viscometer has been used for determining the rheological properties of filamentous erythromycine fermentation broth. In the whole fermentation process fermentation broth behaves as Casson-fluid. Rheological equation can be shown as, τ(t)~(1/2)=τ_0(t)~(1/2)+K_c(t)(?)
Imitation of the characteristics of the wind turbine based on DC motor
This paper analyzed the operating principles and power and torque characteristics of the wind turbine and the direct current motor (DC motor), and investigated the operating characteristics of the wind turbine compared to that of the DC motor.
The torque imitation scheme, which has good performance and high feasibility, together with the whole wind turbine imitation system, was provided.
The wind turbine imitation system includes not only a hardware platform composed of PC, data-collection board and thyristor-based velocity-regulator, but also monitor software of wind turbine imitation.
As an example, the component numbers of an industrial steam turbine product family is forecasted, forecast result verified and forecast error analyzed.
Corresponding research indicated that SNR estimation deviation degraded the performance of Turbo decoding significantly.
In this paper, MAP decoding algorithm with SNR estimation deviation was investigated in detail, and the degradation mechanism of Turbo decoding was explained analytically.
The theoretical analysis and computer simulation disclosed the specific reasons for the performance degradation when SNR estimation was less than the actual value, and for the higher sensitivity of SNR estimation to long-frame Turbo codes.
Sensitivity analysis of torsional vibration behavior of the shafting of a turbo generator set to changes of its mechanical param
Aiming at a 300 MW turbo-generator model, the sensitivity of natural torsional frequencies and modes of torsional vibration (TV) to the rotational inertia and stiffness of the turbo-generator were analyzed.
In a flow through the rim of a turbine machine between the convex and concave surfaces of adjacent blades there arises a transverse gradient of the static pressure.
Investigation of two-dimensional transonic flow of a gas through a turbine cascade by a combined method of integral equations an
Two numerical methods are basically used to calculate two-dimensional separationless steady flow of an inviscid compressible fluid through a turbine cascade.
In an investigation of the flutter of turbines it is necessary to know what is the influence on the unsteady aerodynamic characteristics of a cascade of oscillating profiles of the interaction of cascades in a turbine.
Solution of the problem of optimum boundary layer control on the porous surface of a turbine blade